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Products Issued Before and During the
Winter Storm of January 31-February 1, 2011

Area Forecast Discussions
1/25 1425 1/25 1714 1/26 0413 1/26 0535 1/26 1101 1/26 1108 1/26 1437 1/26 2324
1/27 0429 1/27 1113 1/27 1112 1/27 1538 1/27 2130 1/27 2251 1/28 0410 1/28 0530
1/28 1106 1/28 1111 1/28 1445 1/28 1727 1/28 2134 1/29 0449 1/29 0547 1/29 0949
1/29 1037 1/29 1520 1/29 1754 1/19 2129 1/30 0422 1/30 0547 1/30 1009 1/30 1148
1/30 1432 1/30 1754 1/30 2148 1/31 0412 1/31 0547 1/31 1139 1/31 1546 1/31 1733
1/31 2345 2/01 0425 2/01 0556 2/01 1047 2/01 1145 2/01 1549 2/01 1738 2/01 2111
2/01 2344  
Hazardous Weather Outlooks
1/27 0501 1/27 1148 1/28 0451 1/28 1258 1/29 0442 1/29 1158 1/29 2157 1/30 0809
1/30 1200 1/31 0001 1/31 0447 1/31 0842 1/31 1159 2/01 0453 2/01 1335 2/01 1747
2/02 0457 2/02 1135  
Winter Weather Messages
1/30 0346 1/30 1508 1/30 1615 1/30 2158 1/31 0417 1/31 1204 1/31 1545 2/01 0455
2/01 1121 2/01 1505 2/02 0424 2/02 0906 2/03 0108 2/03 0343  
Special Weather Statements
1/28 1026 1/28 1804 1/28 1811 1/29 0652 1/29 1557  

Record Event Reports (RER)

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE NORMAN OK
401 PM CST SAT JAN 29 2010

...RECORD MAXIMUM TEMPERATURE TIED AT OKLAHOMA CITY TODAY...

THE MAXIMUM TEMPERATURE AT WILL ROGERS WORLD AIRPORT IN OKLAHOMA
CITY REACHED 76 DEGEES TODAY. THIS TIES THE RECORD FOR THE WARMEST
TEMPERATURE FOR THIS DATE IN OKLAHOMA CITY. THE RECORD WAS PREVIOUSLY
REACHED IN 1911. IF THE TEMPERATURE RISES ABOVE 76 DEGREES, THIS
PRODUCT WILL BE UPDATED.

TEMPERATURE RECORDS FOR OKLAHOMA CITY DATE BACK TO 1890.

$$

Civil Emergency Messages (CEM)

BULLETIN - EAS ACTIVATION REQUESTED
CIVIL EMERGENCY MESSAGE
OKLAHOMA DEPARTMENT OF EMERGENCY MANAGEMENT
RELAYED BY NATIONAL WEATHER SERVICE NORMAN OK
745 PM CST TUE FEB 1 2011

THE FOLLOWING MESSAGE IS BEING TRANSMITTED AT THE REQUEST OF THE
OKLAHOMA DEPARTMENT OF EMERGENCY MANAGEMENT.

THIS IS A CIVIL EMERGENCY MESSAGE FOR ANYONE STRANDED IN THEIR
VEHICLE WHO NEEDS HELP DUE TO TODAYS WINTER STORM. IN ORDER TO
ENSURE AUTHORITIES ARE AWARE OF YOUR LOCATION CALL 9 1 1, STAR 55...
OR 1 800 800 2481... ONCE AGAIN... 9 1 1.. STAR 55... OR 1 800 800
2481. TELL THE OPERATOR YOUR LOCATION... INCLUDING HIGHWAY MILE
MARKER ALONG WITH VEHICLE MAKE AND THE NUMBER OF PEOPLE IN YOUR
CAR. THIS WILL ASSIST EMERGENCY PERSONNEL IN FINDING YOU. IF YOU
ARE STRANDED... IT IS IMPERATIVE THAT YOU STAY WITH YOUR VEHICLE.
CONSERVE FUEL... USE ONLY ENOUGH TO STAY WARM. USE HAZARD LIGHTS
PERIODICALLY. CHECK EXHAUST PIPE REGULARLY TO ENSURE IT IS NOT
BLOCKED BY SNOW OR OTHER DEBRIS IN ORDER TO DECREASE THE RISK OF
CARBON MONOXIDE POISONING. TIE A COLORED CLOTH TO YOUR VEHICLES
ANTENNA IF POSSIBLE TO HELP FIRST RESPONDERS IN LOCATING YOU. IF
YOU ARE ON TWITTER YOU CAN TWEET THE ABOVE INFORMATION TO... AT O K
E M... ONCE AGAIN THATS... AT O K E M. YOU CAN ALSO TEXT A FAMILY
MEMBER AND HAVE THEM RELAY YOUR LOCATION TO ONE OF THE ABOVE NUMBERS.

$$

Area Forecast Discussions (AFD)

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
225 PM CST TUE JAN 25 2011

.DISCUSSION...
A COUPLE MORE WEAK COLD FRONTS WILL AFFECT THE FA THIS WEEK. THESE
FRONTS WILL HAVE VERY LITTLE IMPACT ON THE AREA. THE FIRST WEAK
FRONT WILL MOVE ACROSS THE AREA LATE TONIGHT/WEDNESDAY AS A MID LVL
DISTURBANCE MOVES FROM THE CENTRAL ROCKIES INTO THE SOUTHERN PLAINS.
NO PRECIP IS EXPECTED WITH THIS FRONT AND DISTURBANCE. IN FACT THE
ONLY IMPACTS EXPECTED ARE A WIND SHIFT TO THE NORTH AND HAMPERING
ANY MAJOR WARM-UP WEDNESDAY. WARMER TEMPERATURES ARE EXPECTED
THURSDAY AND FRIDAY WITH HIGHS IN THE 60S AT MANY LOCATIONS BOTH
DAYS. THE WILDFIRE POTENTIAL WILL INCREASE LATE IN THE WORK WEEK DUE
TO THE WARM TEMPS AND LOW RH BUT WINDS ARE EXPECTED TO REMAIN BELOW
RED FLAG CRITERIA. THE SECOND MENTIONED WEAK COLD FRONT WILL MOVE
INTO AND ACROSS PARTS OF THE FA FRIDAY NIGHT AND SATURDAY. THIS
FRONT WILL COOL TEMPERATURES SOME SATURDAY COMPARED TO THE LATTER
HALF OF THE WORK WEEK BUT STILL REMAIN WELL ABOVE NORMAL WITH TEMPS
IN THE 50S AND LOW 60S.

COOLER TEMPS...CLOSER TO NORMAL... WILL BE POSSIBLE SUNDAY.
PRECIPITATION WILL ALSO BE POSSIBLE SUNDAY AND SUNDAY NIGHT IN SOUTH
AND EASTERN PORTIONS OF THE FA... AS A DISTURBANCE MOVES ACROSS
TEXAS. IT IS AROUND THIS TIME THAT THE GFS AND ECMWF BEGIN TO
DIVERGE. THE ECMWF HAS A STRONG SURGE OF ARCTIC AIR MOVING INTO THE
REGION SUNDAY NIGHT AND MONDAY WITH PRECIP POSSIBLE. THE PRECIP THEN
MOVES EAST OF THE AREA MONDAY NIGHT AS UPPER LEVEL DISTURBANCE MOVES
EAST OF THE FA. MEANWHILE... THE GFS DOES ALSO SHOW SOME COLD AIR
MOVING IN SUNDAY NIGHT/MONDAY BUT HOLDS MOST OF THE PRECIP WEST OR
AT LEAST IN WESTERN PORTIONS OF THE FA UNTIL MON NIGHT AND TUES WHEN
IT FINALLY MOVES EAST ACROSS THE FA AS A DISTURBANCE MOVES EAST
ACROSS THE SOUTHERN PLAINS. WITH THE DIFFERENCES/INCONSISTENCIES
HAVE LOW POPS IN THROUGH MONDAY THEN WILL KEEP DRY PAST THAT TIME
FOR NOW. WITH THE COLD AIR MOVING INTO THE REGION DURING THIS TIME
FRAME... HAVE A MENTION OF WINTRY PRECIP IN THE FORECAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 26 47 24 60 / 0 0 10 0
HOBART OK 25 49 23 61 / 0 0 0 0
WICHITA FALLS TX 27 55 26 62 / 0 0 0 0
GAGE OK 19 46 17 61 / 0 0 0 0
PONCA CITY OK 24 44 21 60 / 0 0 0 0
DURANT OK 27 55 27 58 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

32/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
514 PM CST TUE JAN 25 2011

.AVIATION...
VRF CONDITIONS AND LIGHT WIND ARE EXPECTED THROUGH 262400.

&&

.PREV DISCUSSION... /ISSUED 225 PM CST TUE JAN 25 2011/

DISCUSSION...
A COUPLE MORE WEAK COLD FRONTS WILL AFFECT THE FA THIS WEEK. THESE
FRONTS WILL HAVE VERY LITTLE IMPACT ON THE AREA. THE FIRST WEAK
FRONT WILL MOVE ACROSS THE AREA LATE TONIGHT/WEDNESDAY AS A MID LVL
DISTURBANCE MOVES FROM THE CENTRAL ROCKIES INTO THE SOUTHERN PLAINS.
NO PRECIP IS EXPECTED WITH THIS FRONT AND DISTURBANCE. IN FACT THE
ONLY IMPACTS EXPECTED ARE A WIND SHIFT TO THE NORTH AND HAMPERING
ANY MAJOR WARM-UP WEDNESDAY. WARMER TEMPERATURES ARE EXPECTED
THURSDAY AND FRIDAY WITH HIGHS IN THE 60S AT MANY LOCATIONS BOTH
DAYS. THE WILDFIRE POTENTIAL WILL INCREASE LATE IN THE WORK WEEK DUE
TO THE WARM TEMPS AND LOW RH BUT WINDS ARE EXPECTED TO REMAIN BELOW
RED FLAG CRITERIA. THE SECOND MENTIONED WEAK COLD FRONT WILL MOVE
INTO AND ACROSS PARTS OF THE FA FRIDAY NIGHT AND SATURDAY. THIS
FRONT WILL COOL TEMPERATURES SOME SATURDAY COMPARED TO THE LATTER
HALF OF THE WORK WEEK BUT STILL REMAIN WELL ABOVE NORMAL WITH TEMPS
IN THE 50S AND LOW 60S.

COOLER TEMPS...CLOSER TO NORMAL... WILL BE POSSIBLE SUNDAY.
PRECIPITATION WILL ALSO BE POSSIBLE SUNDAY AND SUNDAY NIGHT IN SOUTH
AND EASTERN PORTIONS OF THE FA... AS A DISTURBANCE MOVES ACROSS
TEXAS. IT IS AROUND THIS TIME THAT THE GFS AND ECMWF BEGIN TO
DIVERGE. THE ECMWF HAS A STRONG SURGE OF ARCTIC AIR MOVING INTO THE
REGION SUNDAY NIGHT AND MONDAY WITH PRECIP POSSIBLE. THE PRECIP THEN
MOVES EAST OF THE AREA MONDAY NIGHT AS UPPER LEVEL DISTURBANCE MOVES
EAST OF THE FA. MEANWHILE... THE GFS DOES ALSO SHOW SOME COLD AIR
MOVING IN SUNDAY NIGHT/MONDAY BUT HOLDS MOST OF THE PRECIP WEST OR
AT LEAST IN WESTERN PORTIONS OF THE FA UNTIL MON NIGHT AND TUES WHEN
IT FINALLY MOVES EAST ACROSS THE FA AS A DISTURBANCE MOVES EAST
ACROSS THE SOUTHERN PLAINS. WITH THE DIFFERENCES/INCONSISTENCIES
HAVE LOW POPS IN THROUGH MONDAY THEN WILL KEEP DRY PAST THAT TIME
FOR NOW. WITH THE COLD AIR MOVING INTO THE REGION DURING THIS TIME
FRAME... HAVE A MENTION OF WINTRY PRECIP IN THE FORECAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 26 47 24 60 / 0 0 10 0
HOBART OK 25 49 23 61 / 0 0 0 0
WICHITA FALLS TX 27 55 26 62 / 0 0 0 0
GAGE OK 19 46 17 61 / 0 0 0 0
PONCA CITY OK 24 44 21 60 / 0 0 0 0
DURANT OK 27 55 27 58 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

02/09/09

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
413 AM CST WED JAN 26 2011

.DISCUSSION...
UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA TODAY
WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND SHIFT TO
THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER FAVORABLE
DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 52 25 62 31 / 0 0 0 0
HOBART OK 52 25 60 29 / 0 0 0 0
WICHITA FALLS TX 57 27 64 30 / 0 0 0 0
GAGE OK 48 21 59 23 / 0 0 0 0
PONCA CITY OK 46 24 59 30 / 0 0 0 0
DURANT OK 57 30 58 34 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
535 AM CST WED JAN 26 2011

.AVIATION...
SMALL AMOUNT OF MVFR CIGS HAS BEEN OBSERVED OVER KS AND IS
SUPPORTED TO SOME DEGREE BY RH PROGS ACROSS N OK. WILL INTRODUCE A
FEW STRATOCU LATER TODAY ACROSS OK BUT ANY CIGS LIKELY TO BE
LIMITED TO KPNC AREA THIS AFTERNOON. OTHERWISE CONTINUED VFR.

&&

.PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/

DISCUSSION...
UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA TODAY
WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND SHIFT TO
THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER FAVORABLE
DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 52 25 62 31 / 0 0 0 0
HOBART OK 52 25 60 29 / 0 0 0 0
WICHITA FALLS TX 57 27 64 30 / 0 0 0 0
GAGE OK 48 21 59 23 / 0 0 0 0
PONCA CITY OK 46 24 59 30 / 0 0 0 0
DURANT OK 57 30 58 34 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1101 AM CST WED JAN 26 2011

.UPDATE...WINDS WERE SOMEWHAT GUSTY...TO AROUND 20 MPH IN WESTERN
OKLAHOMA...OWING MAINLY TO SOME WEAK COLD ADVECTION BEHIND A
TROUGH OR WEAK COLD FRONT THAT CAME THROUGH THIS MORNING.
TEMPERATURES ROSE QUICKLY AS A SHALLOW INVERSION BECAME MIXED...
BUT ANTICIPATE A SLOWER RISE THIS AFTERNOON...AND DID NOT MAKE
CHANGES TO HIGH TEMPERATURES AT THIS TIME.

&&

PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/

UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA
TODAY WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND
SHIFT TO THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER
FAVORABLE DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 52 25 62 31 / 0 0 0 0
HOBART OK 52 25 60 29 / 0 0 0 0
WICHITA FALLS TX 57 27 64 30 / 0 0 0 0
GAGE OK 48 21 59 23 / 0 0 0 0
PONCA CITY OK 46 24 59 30 / 0 0 0 0
DURANT OK 57 30 58 34 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

25/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1108 AM CST WED JAN 26 2011

.AVIATION...
18Z TAFS... VFR CONDITIONS THROUGHOUT THE TAF PERIOD EXCEPT FOR A
BRIEF PERIOD EARLY THIS AFTN AT KPNC WHERE IFR CEILINGS COULD
MOVE INTO THE AREA.

&&

.PREV DISCUSSION... /ISSUED 1101 AM CST WED JAN 26 2011/

UPDATE...WINDS WERE SOMEWHAT GUSTY...TO AROUND 20 MPH IN WESTERN
OKLAHOMA...OWING MAINLY TO SOME WEAK COLD ADVECTION BEHIND A
TROUGH OR WEAK COLD FRONT THAT CAME THROUGH THIS MORNING.
TEMPERATURES ROSE QUICKLY AS A SHALLOW INVERSION BECAME MIXED...
BUT ANTICIPATE A SLOWER RISE THIS AFTERNOON...AND DID NOT MAKE
CHANGES TO HIGH TEMPERATURES AT THIS TIME.

PREV DISCUSSION... /ISSUED 413 AM CST WED JAN 26 2011/

UPPER TROUGH AND SFC COLD FRONT WILL MOVE SE ACROSS THE AREA
TODAY WITH LITTLE EFFECT ON SENSIBLE WEATHER OTHER THAN A WIND
SHIFT TO THE NNW. WARMING TREND TO FOLLOW THU INTO FRI UNDER
FAVORABLE DOWNSLOPE FLOW CONDITIONS.

TRANSITION TOWARD COOLER/COLDER CONDITIONS WILL BEGIN BY SATURDAY
AS ARCTIC FRONT SAGS INTO OK AND COLDER AIR OOZES INTO N OK WHILE
N TX AND S OK REMAIN WARM. WE ARE LEANING TOWARD THE MORE-
CONSISTENT ECMWF OVER THE GFS... WHICH WOULD HAVE THE SFC FRONT
HANGING OUT ACROSS OK MOST OF THE WEEKEND BEFORE THE COLDER AIR
KICKS IN ON MONDAY. THIS IS IN KEEPING WITH THE WAY THINGS HAVE
BEEN GOING IN GENERAL WITH THE COLD AIR THIS SEASON. HIGH AND LOW
TEMPERATURES ARE LIABLE TO GET TRICKY OVER THE WEEKEND DEPENDING
ON WHERE THE FRONT ENDS UP... BUT IN GENERAL WE LOOK FOR THE
COLDER AIR TO GET A FOOTHOLD ON N/NW OK BY SUNDAY WHILE THE S/SE
ZONES STAY RELATIVELY MILD UNTIL LATE MONDAY. BOTTOM IS LIKELY TO
FALL OUT IN ALL AREAS BY MONDAY NIGHT THOUGH... AND IF THE ECMWF
IS RIGHT THERE WOULD BE FALLING TEMPS IN MANY AREAS DURING THE DAY
MONDAY. ALTHOUGH WE ARE LEANING TOWARD THE ECMWF... OUR SOURCE
REGION FOR THIS COLD AIR OVER INTERIOR ALASKA AND NW CANADA HAS
ACTUALLY WARMED UP RELATIVE TO JUST A FEW DAYS AGO. AND WITH NO
SFC ANTICYCLONES UP NORTH... IT IS HARD TO BUY INTO A 1051 HIGH
OVER MT BY TUESDAY AND 504 THICKNESSES INTO OK BY TUE NIGHT. OUR
TEMPERATURES FOR MONDAY AND TUESDAY ARE VERY CLOSE TO THE LATEST
HPC MAX/MIN GUIDANCE AND ARE WELL BELOW THE GFS-MOS NUMBERS. WE
PROBABLY WILL BE LOOKING AT WIND CHILLS APPROACHING IF NOT
REACHING ADVISORY LEVELS BY MONDAY NIGHT IF THE ECMWF IS RIGHT.

THE PREVAILING DRY PATTERN MAKES IT HARD TO GET EXCITED ABOUT ANY
CHANCE OF PRECIP. WE WILL GO WITH SOME LOW POPS IN OUR S/SE FOR
RAIN SAT NIGHT AND SUNDAY AS AN UPPER LOW MOVES ACROSS N TX.
SUNDAY NIGHT AND MONDAY ARE MORE PROBLEMATIC IN TERMS OF PRECIP
TYPE... BUT THE TREND CERTAINLY WILL BE TOWARD FREEZING-FROZEN BY
MONDAY NIGHT. THERE IS SOME CHANCE OF A SNOWY OR ICY MESS AROUND
SUNDAY NIGHT AND MONDAY BASED ON THE LATEST ECMWF/UKMET... BUT WE
WILL KEEP THE POPS ON THE LOW SIDE UNTIL WE SEE BETTER MODEL
AGREEMENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 52 25 62 31 / 0 0 0 0
HOBART OK 52 25 60 29 / 0 0 0 0
WICHITA FALLS TX 57 27 64 30 / 0 0 0 0
GAGE OK 48 21 59 23 / 0 0 0 0
PONCA CITY OK 46 24 59 30 / 0 0 0 0
DURANT OK 57 30 58 34 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

22/25/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
237 PM CST WED JAN 26 2011

.DISCUSSION...
WARMER TEMPERATURES EXPECTED OVER THE NEXT COUPLE OF DAYS. WITH
MAINLY DOWNSLOPE CONDITIONS... HIGHS IN THE 60S AND 70S ARE
POSSIBLE. THE WARM TEMPERATURES WILL ALSO COMBINE WITH LOW
HUMIDITIES TO ELEVATE THE WILDFIRE POTENTIAL. HOWEVER... WINDS ARE
EXPECTED TO REMAIN RELATIVELY LIGHT SO DO NOT EXPECT ANY FIRE WX
HEADLINES AT THIS TIME. MODELS SHOW A WEAK COLD FRONT MOVING INTO
PARTS OF THE FA FRI NIGHT/SATURDAY REDUCING TEMPS FROM THE LEVELS OF
THE NEXT COUPLE OF DAYS IN SOME PLACES SAT AFTN. HOWEVER... STILL
REMAIN RELATIVELY WARM AND ABOVE NORMAL WITH ELEVATED WILDFIRE
POTENTIAL ONCE AGAIN IN PARTS OF THE FA. THE MOVEMENT/POSITION OF
THIS FRONT WILL ALSO HAVE AN IMPACT ON TEMP FORECAST FOR SAT.

THE WEATHER PICTURE THEN BECOMES SOMEWHAT MUDDLED IN THE MODELS INTO
EARLY NEXT WEEK. BOTH MODELS SHOW A GENERAL COOLING TREND SUNDAY
INTO MONDAY AS COOLER AIR BEGINS TO OOZE INTO THE REGION. A COLDER
AIRMASS WILL THEN BE IN PLACE BY TUESDAY. MODELS CONT TO DIFFER TO
THE PATH/TIMING/EVOLUTION OF SYSTEMS THAT MOVE ACROSS THE WESTERN
U.S. AND DISTURBANCES IN THE NORTHERN BRANCH OF THE UPR FLOW. THIS
WILL HAVE AN AFFECT ON THE TIMING OF THE COLDER AIR AND PRECIP
CHANCES. RIGHT NOW A DISTURBANCE IS EXPECTED TO MOVE ACROSS TEXAS
OVER THE WEEKEND BRINGING A SLIGHT CHANCE OF PRECIP...FALLING IN THE
FORM OF RAIN... SAT NIGHT INTO SUNDAY. THE SLIGHT CHANCES WILL THEN
CONT THROUGH MONDAY NIGHT AS THE NEXT SYSTEMS AFFECT THE REGION.
WITH THE COLDER AIR MOVING IN... THIS WILL LEAD TO A CHANCE OF
WINTRY PRECIPITATION ACROSS PARTS OF THE FA. WILL KEEP POPS LOW AS
STILL GREAT UNCERTAINTIES ON HOW THINGS WILL EVOLVE AND THE PROBABLE
LACK OF ABUNDANT MOISTURE AVAILABLE FOR ANY PRECIP.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 25 64 31 71 / 0 0 0 0
HOBART OK 25 62 29 71 / 0 0 0 0
WICHITA FALLS TX 27 67 30 72 / 0 0 0 0
GAGE OK 21 64 23 70 / 0 0 0 0
PONCA CITY OK 24 61 30 69 / 0 0 0 0
DURANT OK 30 60 34 68 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

22/25

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1124 PM CST WED JAN 26 2011

.AVIATION...
CEILINGS AND VISIBILITIES ARE EXPECTED TO BE UNRESTRICTED AT TAF
SITES THROUGH 06Z TOMORROW NIGHT. HOWEVER... CANNOT COMPLETELY
RULE OUT RADIATION FOG EARLY THURSDAY MORNING IN PROTECTED AREAS...
ESPECIALLY NEAR LAKES OR RIVERS. WINDS WILL BE LIGHT OVERNIGHT...
THEN INCREASE FROM THE WEST ON THURSDAY AS DAYTIME HEATING
ENHANCES LOW-LEVEL VERTICAL MIXING. WINDS WILL THEN SUBSIDE AROUND
SUNSET AS THE MIXING DIMINISHES AGAIN.

&&

.PREV DISCUSSION... /ISSUED 237 PM CST WED JAN 26 2011/

DISCUSSION...
WARMER TEMPERATURES EXPECTED OVER THE NEXT COUPLE OF DAYS. WITH
MAINLY DOWNSLOPE CONDITIONS... HIGHS IN THE 60S AND 70S ARE
POSSIBLE. THE WARM TEMPERATURES WILL ALSO COMBINE WITH LOW
HUMIDITIES TO ELEVATE THE WILDFIRE POTENTIAL. HOWEVER... WINDS ARE
EXPECTED TO REMAIN RELATIVELY LIGHT SO DO NOT EXPECT ANY FIRE WX
HEADLINES AT THIS TIME. MODELS SHOW A WEAK COLD FRONT MOVING INTO
PARTS OF THE FA FRI NIGHT/SATURDAY REDUCING TEMPS FROM THE LEVELS OF
THE NEXT COUPLE OF DAYS IN SOME PLACES SAT AFTN. HOWEVER... STILL
REMAIN RELATIVELY WARM AND ABOVE NORMAL WITH ELEVATED WILDFIRE
POTENTIAL ONCE AGAIN IN PARTS OF THE FA. THE MOVEMENT/POSITION OF
THIS FRONT WILL ALSO HAVE AN IMPACT ON TEMP FORECAST FOR SAT.

THE WEATHER PICTURE THEN BECOMES SOMEWHAT MUDDLED IN THE MODELS INTO
EARLY NEXT WEEK. BOTH MODELS SHOW A GENERAL COOLING TREND SUNDAY
INTO MONDAY AS COOLER AIR BEGINS TO OOZE INTO THE REGION. A COLDER
AIRMASS WILL THEN BE IN PLACE BY TUESDAY. MODELS CONT TO DIFFER TO
THE PATH/TIMING/EVOLUTION OF SYSTEMS THAT MOVE ACROSS THE WESTERN
U.S. AND DISTURBANCES IN THE NORTHERN BRANCH OF THE UPR FLOW. THIS
WILL HAVE AN AFFECT ON THE TIMING OF THE COLDER AIR AND PRECIP
CHANCES. RIGHT NOW A DISTURBANCE IS EXPECTED TO MOVE ACROSS TEXAS
OVER THE WEEKEND BRINGING A SLIGHT CHANCE OF PRECIP...FALLING IN THE
FORM OF RAIN... SAT NIGHT INTO SUNDAY. THE SLIGHT CHANCES WILL THEN
CONT THROUGH MONDAY NIGHT AS THE NEXT SYSTEMS AFFECT THE REGION.
WITH THE COLDER AIR MOVING IN... THIS WILL LEAD TO A CHANCE OF
WINTRY PRECIPITATION ACROSS PARTS OF THE FA. WILL KEEP POPS LOW AS
STILL GREAT UNCERTAINTIES ON HOW THINGS WILL EVOLVE AND THE PROBABLE
LACK OF ABUNDANT MOISTURE AVAILABLE FOR ANY PRECIP.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 25 64 31 71 / 0 0 0 0
HOBART OK 25 62 29 71 / 0 0 0 0
WICHITA FALLS TX 27 67 30 72 / 0 0 0 0
GAGE OK 21 64 23 70 / 0 0 0 0
PONCA CITY OK 24 61 30 69 / 0 0 0 0
DURANT OK 30 60 34 68 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
429 AM CST THU JAN 27 2011

.DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC.
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING...
AMOUNTS... AND PRECIP TYPE/S.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 62 33 73 34 / 0 0 0 0
HOBART OK 63 31 68 32 / 0 0 0 0
WICHITA FALLS TX 64 32 74 35 / 0 0 0 0
GAGE OK 65 26 72 24 / 0 0 0 0
PONCA CITY OK 59 32 68 31 / 0 0 0 0
DURANT OK 61 37 70 41 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
513 AM CST THU JAN 27 2011

.AVIATION...
VFR WITH FEW CLOUDS IF ANY. LIGHT WESTERLY WINDS THROUGH TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 429 AM CST THU JAN 27 2011/

DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC.
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING...
AMOUNTS... AND PRECIP TYPE/S.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 62 33 73 34 / 0 0 0 0
HOBART OK 63 31 68 32 / 0 0 0 0
WICHITA FALLS TX 64 32 74 35 / 0 0 0 0
GAGE OK 65 26 72 24 / 0 0 0 0
PONCA CITY OK 59 32 68 31 / 0 0 0 0
DURANT OK 61 37 70 41 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

11/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1112 AM CST THU JAN 27 2011

.AVIATION...
WEAK WIND SHIFT MOVING THROUGH THE AREA WILL SHIFT WINDS SLIGHTLY
FROM WEST/SOUTHWEST TO A NORTHWEST WIND TODAY. SOME SLIGHTLY GUSTY
WIND SPEEDS WILL OCCUR THIS AFTERNOON BEFORE WINDS BECOME LIGHT
AND GENERALLY FROM THE WEST/SOUTHWEST THIS EVENING. A FEW MID-
LEVEL CLOUDS WILL MOVE THROUGH THE AREA THIS AFTERNOON... BUT
OTHERWISE CLEAR SKIES WILL PREVAIL.

&&

.PREV DISCUSSION... /ISSUED 513 AM CST THU JAN 27 2011/

AVIATION...
VFR WITH FEW CLOUDS IF ANY. LIGHT WESTERLY WINDS THROUGH TONIGHT.

PREV DISCUSSION... /ISSUED 429 AM CST THU JAN 27 2011/

DISCUSSION...
DECENT WARMUP NEXT FEW DAYS WITH DOWNSLOPE WESTERLIES AT THE SFC.
NAM12 SFC T HAS DONE WELL RECENTLY ON THE HIGHS ACCORDING TO LOCAL
VERIFICATION DATA. RECENT RUNS SUPPORT 60S TODAY AND LOW 70S
FRIDAY OVER MOST OF THE AREA. MOST RECENT NAM AND ECMWF RUNS HOLD
OFF ANY BACK-DOOR COLD INTRUSIONS INTO OK UNTIL SAT NIGHT... SO
SATURDAY ALSO IS LIKELY TO FEATURE SPRINGLIKE TEMPS OVER MOST OF
THE AREA. FRONT IS LIKELY TO BE VERY CLOSE TO FAR N OK IF NOT INTO
THE STATE... SO HIGHS ON SATURDAY COULD STILL BE A CHALLENGE NEAR
THE KS BORDER. WILDFIRE POTENTIAL WILL BE ELEVATED EACH AFTERNOON
THROUGH SATURDAY DUE TO WARM DRY CONDITIONS... BUT WINDS WILL BE
RELATIVELY LIGHT MOST OF THE TIME. SATURDAY MAY BE THE DAY OF
GREATEST CONCERN DUE TO SLIGHTLY STRONGER WINDS.

CHILLDOWN IS LIKELY TO COMMENCE SAT NIGHT AND SUNDAY AS SFC FRONT
MOVES S IN WAKE OF AN UPPER LOW MOVING ACROSS N TX. WE WILL KEEP
SOME LOW POPS GOING FOR -RA OVER MUCH OF THE SE PART OF THE CWA
SAT NIGHT AND SUNDAY. ANY PRECIP SHOULD END BEFORE ENOUGH COLD AIR
ARRIVES TO FORCE A CHANGEOVER.

FIRST PART OF NEXT WEEK IS LOOKING MORE TROUBLESOME IN TERMS OF SNOW
AND ICE. MED-RANGE MODELS STILL DIFFER ON TIMING OF THE SYSTEM
ARRIVING ON THE OR-CA COAST EARLY SUNDAY AND INTO THE S PLAINS FIRST
HALF OF NEXT WEEK. BUT THEY APPEAR TO BE CONVERGING ON A SCENARIO
THAT WOULD GIVE US A PRECIP LULL AROUND MONDAY IN WAKE OF THE
WEEKEND SYSTEM... FOLLOWED BY INCREASIHG CHANCES MON NIGHT THROUGH
TUE NIGHT. PROBLEM IS THAT THE CANADIAN AIR WILL BE ON THE OFFENSIVE
DURING THIS PERIOD AND WILL EITHER BE MOVING INTO THE AREA OR WILL
ALREADY BE IN PLACE. ECMWF REMAINS MORE AGGRESSIVE THAN THE GFS ON
THE ARCTIC HIGH INTRUSION INTO THE S PLAINS MONDAY... AND WOULD BE
THE MORE LIKELY SCENARIO IF THERE WERE ALREADY A BIG ARCTIC HIGH
AND A LOT OF BITTER COLD AIR UP THERE RIGHT NOW. BUT THERE ISNT.
THE ECMWF IN FACT HAS BACKED OFF FROM YESTERDAY'S 1051 HIGH OVER
MT AND 504 THICKNESS INTO OK NEXT TUE... BUT MODEL CONSENSUS STILL
SUPPORTS A 1040-SOMETHING HIGH INTO THE N PLAINS MONDAY WHICH WILL
PUSH COLDER AIR INTO THE REGION WHILE THE UPPER SYSTEM APPROACHES
FROM NM. FORECAST THUS PRESENTS A MORE GRADUAL CHILLDOWN OVER THE
SUNDAY-TUESDAY PERIOD - BUT A SIGNIFICANT ONE NONETHELESS. LARGE-
SCALE EVOLUTION OF FEATURES ON CURRENT MED-RANGE MODELS IS PRETTY
TYPICAL OF A HEAVY-SNOW EVENT IN THE S PLAINS... BUT THE MORE
GRADUAL INJECTION OF LOW-LEVEL COLD AIR SUGGESTS A CONCURRENT
POTENTIAL FOR A PERIOD OF ICE BEFORE THE COLD AIR WINS OUT AND
SNOW PREVAILS BY THE END OF THE EVENT. POPS HAVE BEEN INCREASED
MON NIGHT INTO TUE NIGHT PER LATEST GFS GUIDANCE. TEMPS LATE IN
THE FORECAST AGAIN ARE CLOSE TO LATEST HPC GUIDANCE.

SYSTEM NEXT WEEK COULD GO IN ANY OF SEVERAL DIRECTIONS - MOSTLY SNOW
OR MOSTLY ICE OF SOME OF EVERYTHING. WOULD NOT EVEN BE SURPRISED AT
COLD AND DRY WITH LITTLE OR NO PRECIP GIVEN THE WAY THINGS HAVE BEEN
GOING LATELY. WE WILL HIT IT A LITTLE HARDER IN THE HWO... BUT WILL
EMPHASIZE THE EXISTING UNCERTAINTIES ON DETAILS INCLUDING TIMING...
AMOUNTS... AND PRECIP TYPE/S.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 62 33 73 34 / 0 0 0 0
HOBART OK 63 31 68 32 / 0 0 0 0
WICHITA FALLS TX 64 32 74 35 / 0 0 0 0
GAGE OK 65 26 72 24 / 0 0 0 0
PONCA CITY OK 59 32 68 31 / 0 0 0 0
DURANT OK 61 37 70 41 / 0 0 0 0

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
338 PM CST THU JAN 27 2011

.DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 34 69 34 71 / 0 0 0 0
HOBART OK 32 69 31 69 / 0 0 0 0
WICHITA FALLS TX 33 72 35 73 / 0 0 0 10
GAGE OK 25 73 25 67 / 0 0 0 0
PONCA CITY OK 31 65 29 66 / 0 0 0 0
DURANT OK 36 66 38 67 / 0 0 0 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
930 PM CST THU JAN 27 2011

.DISCUSSION...
TONIGHT WILL BE RELATIVELY WARM... WITH LIGHT WINDS AND FEW
CLOUDS. THE LATTER TWO ITEMS WILL RESULT IN HIGHLY VARIABLE
TEMPERATURES OVERNIGHT. NO CHANGES ARE CURRENTLY PLANNED FOR THE
FORECAST FOR TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 338 PM CST THU JAN 27 2011/

DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 34 69 34 71 / 0 0 0 0
HOBART OK 32 69 31 69 / 0 0 0 0
WICHITA FALLS TX 33 72 35 73 / 0 0 0 10
GAGE OK 25 73 25 67 / 0 0 0 0
PONCA CITY OK 31 65 29 66 / 0 0 0 0
DURANT OK 36 66 38 67 / 0 0 0 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1055 PM CST THU JAN 27 2011

.AVIATION...
VFR CONDITIONS WILL PREVAIL THROUGH THE PD.

&&

.PREV DISCUSSION... /ISSUED 930 PM CST THU JAN 27 2011/

.DISCUSSION...
TONIGHT WILL BE RELATIVELY WARM... WITH LIGHT WINDS AND FEW
CLOUDS. THE LATTER TWO ITEMS WILL RESULT IN HIGHLY VARIABLE
TEMPERATURES OVERNIGHT. NO CHANGES ARE CURRENTLY PLANNED FOR THE
FORECAST FOR TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 338 PM CST THU JAN 27 2011/

DISCUSSION...
VERY WARM TEMPERATURES ARE IN STORE FOR THE NEXT COUPLE OF DAYS...
ALTHOUGH THERE IS SOME DISAGREEMENT IN THE MODELS ABOUT HOW FAR A
COLD FRONT WILL MOVE SOUTH ON SATURDAY. GFS BRINGS FRONT INTO THE
NORTHERN THIRD OF THE CWA BY 00Z/SUNDAY WHILE ECMWF AND ESPECIALLY
THE NAM KEEP THE FRONT NORTH OF THE AREA. IN COORDINATION WITH THE
ADJACENT KANSAS OFFICES... WILL GO CLOSER TO THE WARMER NAM
SOLUTION FOR SATURDAY AT THIS POINT. ALL THE MODELS DO SHOW THE
COLD FRONT MOVING THROUGH THE AREA SATURDAY NIGHT AND SUNDAY
MORNING BEGINNING A MUCH COOLER PERIOD OF TIME. REINFORCING SHOTS
OF COLD AIR LOOKS TO COME IN EARLY NEXT WEEK WITH TEMPERATURES
COLDEST TEMPERATURES EXPECTED ON TUESDAY AND WEDNESDAY.

PRECIPITATION FORECAST IS STILL TRICKY. AT LEAST SLIGHT
PRECIPITATION CHANCES BEGIN ON SATURDAY NIGHT AND PERSIST INTO
EARLY NEXT WEEK. MEDIUM RANGE MODELS DO INCREASE THE
PRECIPITATION CHANCES NEXT WEEK ALTHOUGH THERE ARE SIGNIFICANT
DIFFERENCES IN THE LOCATION AND TIMING OF THE PRECIPITATION... AND
STILL UNCERTAINTY ON PRECIPITATION TYPE ESPECIALLY EARLY IN THE
EVENT. SURFACE FRONT WILL BE WELL TO THE SOUTH OF THE AREA AND
ISENTROPIC ANALYSIS SHOWS DECENT MOISTURE FEED AND LIFT ABOVE THE
FRONTAL SURFACE... BUT NOT IN THE TYPICAL CONFIGURATION FOR US.
INSTEAD OF A MOIST SOUTHERLY FLOW ABOVE THE FRONTAL SURFACE... THE
MOIST FLOW IS A EAST TO WEST FLOW FROM ARKANSAS DESPITE THE LACK
OF A STRONG LOW-LEVEL CYCLONE. SO THERE IS THE UNCERTAINTY ABOUT
MOISTURE AVAILABILITY FOR THE STORM SYSTEM EARLY NEXT WEEK
ESPECIALLY GIVEN THE POOR TRACK RECORD OF THE MOISTURE RETURN IN
THE MODELS WITH SOME OF THE RECENT NON-EVENTS. REGARDLESS AT THIS
POINT... CHANCE POPS ARE WARRANTED ON MONDAY NIGHT TO TUESDAY
NIGHT ALTHOUGH GEOGRAPHIC AND SIGNIFICANCE DETAILS ARE STILL VERY
MUCH IN QUESTION. AND AT THIS POINT ALL OF THE MEDIUM RANGE MODELS
SUGGEST THAT PRECIPITATION WILL END TUESDAY NIGHT SO WEDNESDAY AND
THURSDAY ARE DRY AND WARMING IN THIS PACKAGE.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 34 69 34 71 / 0 0 0 0
HOBART OK 32 69 31 69 / 0 0 0 0
WICHITA FALLS TX 33 72 35 73 / 0 0 0 10
GAGE OK 25 73 25 67 / 0 0 0 0
PONCA CITY OK 31 65 29 66 / 0 0 0 0
DURANT OK 36 66 38 67 / 0 0 0 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
410 AM CST FRI JAN 28 2011

.DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP.

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 71 36 69 35 / 0 0 0 10
HOBART OK 70 33 70 34 / 0 0 0 0
WICHITA FALLS TX 72 37 73 41 / 0 0 10 10
GAGE OK 74 28 66 22 / 0 0 0 0
PONCA CITY OK 66 32 64 27 / 0 0 0 0
DURANT OK 68 40 70 48 / 0 0 10 30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
530 AM CST FRI JAN 28 2011

.AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

&&

.PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP.

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 71 36 69 35 / 0 0 0 10
HOBART OK 70 33 70 34 / 0 0 0 0
WICHITA FALLS TX 72 37 73 41 / 0 0 10 10
GAGE OK 74 28 66 22 / 0 0 0 0
PONCA CITY OK 66 32 64 27 / 0 0 0 0
DURANT OK 68 40 70 48 / 0 0 10 30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
1106 AM CST FRI JAN 28 2011

.UPDATE...
MAIN CHANGE TO THE PACKAGE THIS MORNING WAS TO DECREASE DEWPOINTS
IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS BASED ON CURRENT
TRENDS AND EXPECTED CONTINUED DRY.. WESTERLY SURFACE FLOW. THIS
BRINGS MINIMUM RH VALUES TO LESS THAN 20 PERCENT ACROSS A LARGER
AREA OF OKLAHOMA AND NORTH TEXAS ENHANCING WILDFIRE POTENTIAL
DESPITE THE LACK OF STRONG WINDS. ALSO HAVE RAISED MAX
TEMPERATURES SOMEWHAT IN THE EASTERN PART OF THE FORECAST AREA.
UPDATED ZONES HAVE ALREADY BEEN ISSUED.

&&

.PREV DISCUSSION... /ISSUED 530 AM CST FRI JAN 28 2011/

AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE TYPE
AND AMOUNT OF THE PRECIP.

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 71 36 69 35 / 0 0 0 10
HOBART OK 70 33 70 34 / 0 0 0 0
WICHITA FALLS TX 72 37 73 41 / 0 0 10 10
GAGE OK 74 28 66 22 / 0 0 0 0
PONCA CITY OK 68 32 64 27 / 0 0 0 0
DURANT OK 70 40 70 48 / 0 0 10 30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
1110 AM CST FRI JAN 28 2011

.AVIATION...
SOUTHWEST WINDS WILL DECREASE THIS EVENING WITH CLEAR SKIES. SFC
BOUNDARY WILL APPROACH NORTHERN TAF SITES BY LATE SATURDAY MORNING
WITH SOME VARIABILITY IN WIND DIRECTIONS...HOWEVER SPEEDS SHOULD
REMAIN BELOW 10KTS. UPPER STORM SYSTEM WILL BEGIN TO MOVE EAST INTO
SOUTHWEST TEXAS ON SATURDAY. THIS WILL BRING SOME MID/HIGH CLOUDS
TOWARD RED RIVER.

30

&&

.PREV DISCUSSION... /ISSUED 1106 AM CST FRI JAN 28 2011/

.UPDATE...
MAIN CHANGE TO THE PACKAGE THIS MORNING WAS TO DECREASE DEWPOINTS
IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS BASED ON CURRENT
TRENDS AND EXPECTED CONTINUED DRY.. WESTERLY SURFACE FLOW. THIS
BRINGS MINIMUM RH VALUES TO LESS THAN 20 PERCENT ACROSS A LARGER
AREA OF OKLAHOMA AND NORTH TEXAS ENHANCING WILDFIRE POTENTIAL
DESPITE THE LACK OF STRONG WINDS. ALSO HAVE RAISED MAX
TEMPERATURES SOMEWHAT IN THE EASTERN PART OF THE FORECAST AREA.
UPDATED ZONES HAVE ALREADY BEEN ISSUED.

&&

.PREV DISCUSSION... /ISSUED 530 AM CST FRI JAN 28 2011/

AVIATION...
/12Z TAFS/
VFR CONDITIONS WILL PREVAIL THROUGH THE FORECAST PERIOD WITH ONLY
A FEW HIGH CLOUDS EXPECTED. LIGHT TO MODERATE W TO SW WINDS WILL
PREVAIL THROUGH THE DAY BEFORE DECREASING AND BACKING TO THE
SOUTH TONIGHT.

PREV DISCUSSION... /ISSUED 410 AM CST FRI JAN 28 2011/

DISCUSSION...
FASTEN THE SEAT BELTS... THE WEATHER'S ROLLER COASTER RIDE IS
STARTING UP. TEMPERATURES WILL INITIALLY WARM UP TO WELL ABOVE
NORMAL BEFORE THEY PLUNGE INTO THE ICY COLD.

WEST TO SOUTHWEST WINDS AND GENERALLY SUNNY SKIES WILL ALLOW
TEMPERATURES TO WARM INTO THE UPPER 60S TO MID 70S OVER A GOOD
PART OF THE REGION TODAY. THE UNSEASONABLY WARM TEMPERATURES AND
DRY AIR WILL RESULT IN LOW HUMIDITIES BY THIS AFTERNOON WHICH WILL
INCREASE FIRE WEATHER CONCERNS... ESPECIALLY OVER WESTERN PORTIONS
OF OK AND NORTH TX. HOWEVER... IT APPEARS THE WINDS WILL BE
ON THE MODERATE SIDE... GENERALLY RUNNING 15 MPH OR LOWER...
ALTHOUGH MIXING COULD RESULT IN SOME GUSTS AROUND 20 MPH.
TEMPERATURES WILL BE A BIT COOLER ON SUNDAY IN NORTHERN OK AS A
COLD FRONT WAFFLES INTO THE AREA... BUT HIGHS WILL STILL RUN WELL
ABOVE SEASONAL AVERAGES IN MOST AREAS.

AN UPPER LOW... LOCATED OFF THE COAST OF NORTHERN BAJA EARLY THIS
MORNING... WILL LIFT OUT TO THE EAST DURING THE NEXT COUPLE OF
DAYS. WHILE MOST OF THE RAIN WITH THIS SYSTEM IS EXPECTED TO BE
WILL BE OVER EASTERN TX... SOME OF IT MAY ALSO SPILL INTO SE OK.
MEANWHILE... A LARGE COLD HIGH PRESSURE RIDGE OVER CANADA WILL
DROP SOUTHWARD AND PUSH A COLD FRONT THROUGH THE AREA SATURDAY
NIGHT AND EARLY SUNDAY... DROPPING HIGH TEMPERATURES 20 TO 25
DEGREES FOR SUNDAY. SOME LIGHT MIXED WINTRY PRECIPITATION WILL BE
POSSIBLE SUNDAY NIGHT INTO MONDAY MAINLY ACROSS NORTHERN OK WITH
LIGHT RAIN/DRIZZLE FARTHER SOUTH.

AS TEMPERATURES CONTINUE TO CHILL DOWN... ANOTHER STORM SYSTEM WILL
APPROACH THE AREA EARLY NEXT WEEK... BRINGING A BETTER POSSIBILITY
FOR A MIX OF WINTER PRECIPITATION. WHILE THE DETAILS DIFFER AMONG
THE MODELS... BOTH THE GFS AND ECMWF SPREAD SOME PRECIPITATION
OVER THE AREA BY TUESDAY... WITH THE GFS STARTING IT A LITTLE
SOONER AND GENERATING MORE QPF IN GENERAL. THE CHANCE FOR
FREEZING/FROZEN PRECIP WILL PROGRESS SOUTH THROUGH THE FA MONDAY
NIGHT AND TUESDAY. WHILE THERE IS REASONABLE CONFIDENCE IN THE
DEVELOPMENT OF WINTRY PRECIPITATION... THERE CONTINUES TO BE
CONSIDERABLE UNCERTAINTY ATTM CONCERNING THE EXACT TIMING... PHASE
TYPE AND AMOUNT OF THE PRECIP.

ALONG WITH THE COLD TEMPERATURES... BRISK NORTH WINDS WILL AT
TIMES RESULT IN SUB ZERO WIND CHILL TEMPERATURES TUE/WED OVER
THE NORTHERN HALF OF OK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 71 36 69 35 / 0 0 0 10
HOBART OK 70 33 70 34 / 0 0 0 0
WICHITA FALLS TX 72 37 73 41 / 0 0 10 10
GAGE OK 74 28 66 22 / 0 0 0 0
PONCA CITY OK 68 32 64 27 / 0 0 0 0
DURANT OK 70 40 70 48 / 0 0 10 30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
245 PM CST FRI JAN 28 2011

.DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND SHIFT.
THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM... BREEZY
AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS.

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA.
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE.

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE
AREA MONDAY NIGHT.

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK.
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 36 68 36 44 / 0 0 10 10
HOBART OK 33 67 33 42 / 0 0 0 0
WICHITA FALLS TX 37 74 41 48 / 0 10 10 0
GAGE OK 28 66 23 43 / 0 0 0 0
PONCA CITY OK 32 63 28 41 / 0 0 0 0
DURANT OK 40 71 48 53 / 0 10 30 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/30

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
515 PM CST FRI JAN 28 2011

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH THE PD. SURFACE BOUNDARY WILL
DRIFT DOWN INTO NRN OK TONIGHT WITH LIGHT/VARIABLE WINDS EXPECTED AT
NRN OK SITES. BOUNDARY SHOULD LIFT BACK NWD DURING THE DAY SATURDAY
BEFORE SURGING S AGAIN SAT AFTERNOON/EVE.

&&

.PREV DISCUSSION... /ISSUED 245 PM CST FRI JAN 28 2011/

.DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND
SHIFT. THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM...
BREEZY AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS.

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA.
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE.

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE
AREA MONDAY NIGHT.

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK.
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 36 68 36 44 / 0 0 10 10
HOBART OK 33 67 33 42 / 0 0 0 0
WICHITA FALLS TX 37 74 41 48 / 0 10 10 0
GAGE OK 28 66 23 43 / 0 0 0 0
PONCA CITY OK 32 63 28 41 / 0 0 0 0
DURANT OK 40 71 48 53 / 0 10 30 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/30

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
934 PM CST FRI JAN 28 2011

.DISCUSSION...
WEAK SURFACE HIGH PRESSURE IS RESULTING IN LIGHT WINDS AND CLEAR
SKIES ACROSS OKLAHOMA AND NORTH TEXAS. EXTREMELY DRY AIR IS ALSO
IN PLACE. AS A RESULT... TEMPERATURES HAVE PLUMMETED SINCE
SUNSET... AND WIDE VARIATIONS IN TEMPERATURES - BASED ON
TOPOGRAPHY - HAVE RESULTED. THE CURRENT FORECAST LOOKS GOOD AT
THIS TIME... SO NO CHANGES ARE PLANNED FOR THIS EVENING.

&&

.PREV DISCUSSION... /ISSUED 515 PM CST FRI JAN 28 2011/

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH THE PD. SURFACE BOUNDARY WILL
DRIFT DOWN INTO NRN OK TONIGHT WITH LIGHT/VARIABLE WINDS EXPECTED AT
NRN OK SITES. BOUNDARY SHOULD LIFT BACK NWD DURING THE DAY SATURDAY
BEFORE SURGING S AGAIN SAT AFTERNOON/EVE.

PREV DISCUSSION... /ISSUED 245 PM CST FRI JAN 28 2011/

DISCUSSION...
ANOTHER VERY MILD DAY TODAY IS EXPECTED TO BE FOLLOWED BY ANOTHER
MILD DAY ON SATURDAY AS W/SW LOW LEVEL FLOW CONT TO BRING WARM AIR
OFF MEXICAN PLATEAU. WEAK SFC FRONT MAY SLIP INTO NORTHERN OKLAHOMA
DURING THE DAY... BUT SHOULD DO LITTLE MORE THAN ACT AS A WIND
SHIFT. THERE WILL CONT TO BE FIRE WX CONCERNS ON SAT AS VERY WARM...
BREEZY AND DRY AIR CONT TO RESIDE ACROSS OKLAHOMA AND NORTH TEXAS.

UPPER WAVE NEAR BAJA WILL EJECT EAST THROUGH TX OVER THE WEEKEND
BRINGING A SLIGHT CHANCE OF RAIN TO PORTIONS OF SOUTHERN OKLAHOMA.
AS THIS WAVE MOVES BY IT WILL BEGIN TO BRING SOUTH COOLER AIR
CURRENTLY ACROSS THE NORTHERN PLAINS. OUR ATTENTION THEN TURNS TO
UPPER WAVE OFF THE PACIFIC NORTHWEST COAST AND ITS MOVEMENT TOWARD
THE AREA EARLY NEXT WEEK... AS WELL AS COLDER AIR TAKING SHAPE
ACROSS CANADA. AT LEAST DEPICTED BY THE MODELS TO TAKE SHAPE.

LATEST RUNS OF BOTH THE GFS AND ECMWF HAVE SHOWN THAT AS THE
INITIAL WAVE APPROACHES FROM THE WEST OF MONDAY... WARMER AIR WILL
TRY AND MOVE BACK NORTH INTO PART OF OKLAHOMA AS MORE SIGNIFICANT
SFC CYCLOGENESIS DEVELOPS TO OUR WEST/SOUTHWEST. THIS WARMER AIR
APPEARS THAT IT MAY LIMIT FREEZING/FROZEN PRECIP ACROSS MUCH OF THE
AREA MONDAY NIGHT.

MODEL TRENDS WOULD BRING DEEPER/COLDER AIR SOUTHWARD INTO AREA
DURING THE DAY ON TUESDAY AS SFC LOW CONT TO DEEPEN TO OUR SOUTH AND
SOUTHEAST. THIS SHOULD ALLOW A QUICKER TRANSITION FROM LIQUID TO
FROZEN... LIMITING FREEZING RAIN AND SLEET. IN ADDITION LATEST ECMWF
WOULD BRING AN END TO THE PRECIP RATHER QUICKLY TUE AFTN... EVEN
LIMITING SNOW ACROSS THE AREA. HOWEVER CONFIDENCE ON ANY PARTICULAR
SOLUTION FOR THE LATE MONDAY INTO TUESDAY TIME FRAME CONT TO BE
RATHER LOW. HOWEVER DID ISSUE AN SPS EARLIER IN THE DAY ADDRESSING
SOME OF THE ISSUES.

AFTER PRECIP ENDS TUE EVENING... CONCERN IS THEN WITH COLD AND
STRONG NORTH WINDS WHICH WILL CREATE VERY LOW WIND CHILLS TUE INTO
WED. COLD AIR THEN HANGS AROUND THROUGH MUCH OF THE REMAINDER OF
NEXT WEEK WITH ANOTHER STRONG FRONT POSSIBLY BY THE END OF THE WEEK.
HOWEVER AFTER TUE EVENING THE FORECAST REMAINS DRY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 36 68 36 44 / 0 0 10 10
HOBART OK 33 67 33 42 / 0 0 0 0
WICHITA FALLS TX 37 74 41 48 / 0 10 10 0
GAGE OK 28 66 23 43 / 0 0 0 0
PONCA CITY OK 32 63 28 41 / 0 0 0 0
DURANT OK 40 71 48 53 / 0 10 30 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
449 AM CST SAT JAN 29 2011

.DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT.

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED.
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 72 36 44 33 / 0 10 0 10
HOBART OK 71 33 42 31 / 0 0 0 10
WICHITA FALLS TX 75 41 48 37 / 10 10 0 10
GAGE OK 68 23 43 22 / 0 0 0 10
PONCA CITY OK 65 28 41 25 / 0 0 0 20
DURANT OK 71 48 55 40 / 10 30 20 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST SAT JAN 29 2011

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

&&

.PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT.

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED.
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 72 36 44 33 / 0 10 0 10
HOBART OK 71 33 42 31 / 0 0 0 10
WICHITA FALLS TX 75 41 48 37 / 10 10 0 10
GAGE OK 68 23 43 22 / 0 0 0 10
PONCA CITY OK 65 28 41 25 / 0 0 0 20
DURANT OK 71 48 55 40 / 10 30 20 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
949 AM CST SAT JAN 29 2011

.AVIATION...
18Z TAFS... MAIN QUESTION IS WHETHER POST-FRONTAL STRATUS WILL GET
INTO OK TONIGHT AND SUNDAY MORNING. INITIAL FRONT/WINDSHIFT IS
CURRENTLY ACROSS NCENTRAL/NE OK BUT LOW CLOUDS ARE CONFINED TO A
SECONDARY COLD SURGE NOW MOVING S INTO NEB/IA. MODEL RH PROGS DEPICT
A SHALLOW LAYER OF LOW-LEVEL SATURATION BEHIND THE FRONT AS THIS
COLDER AIR BEGINS TO WORK S INTO THE AREA OVERNIGHT. THUS WE WILL
MAINTAIN LOW-MVFR CIGS IN THE TAFS ACROSS N AND CENTRAL OK LATE
TONIGHT AND SUNDAY MORNING.

&&

.PREV DISCUSSION... /ISSUED 547 AM CST SAT JAN 29 2011/

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT.

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED.
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 72 36 44 33 / 0 10 0 10
HOBART OK 71 33 42 31 / 0 0 0 10
WICHITA FALLS TX 75 41 48 37 / 10 10 0 10
GAGE OK 68 23 43 22 / 0 0 0 10
PONCA CITY OK 65 28 41 25 / 0 0 0 20
DURANT OK 71 48 55 40 / 10 30 20 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1037 AM CST SAT JAN 29 2011

.UPDATE...
HAVE RAISED FORECAST MAX TEMPERATURES A COUPLE OF DEGREES IN THE
SOUTHWEST... AND ADJUSTED DEWPOINTS BASED ON CURRENT TRENDS. FIRE
WEATHER CONCERNS REMAIN FOR TODAY AND ADJUSTED DEWPOINTS GIVE A
BROADER AREA WITH MIN RH LESS THAN 20 PERCENT TODAY... ALTHOUGH
SUSTAINED WIND SPEEDS ARE NOT EXPECTED TO BE SUFFICIENT FOR A RED
FLAG. ALSO WINDS ARE SUPPOSED TO BACK SOMEWHAT TODAY ACROSS MOST
OF THE AREA WHICH WILL ALLOW SOMEWHAT HIGHER DEWPOINTS IN NORTH
TEXAS TO BEGIN SPREADING INTO THE AREA... ALTHOUGH WINDS MAY STAY
MORE VEERED THIS AFTERNOON ACROSS WESTERN PORTIONS OF THE FORECAST
AREA KEEPING DEWPOINTS LOW THROUGH THE AFTERNOON IN THE WEST.

&&

.PREV DISCUSSION... /ISSUED 949 AM CST SAT JAN 29 2011/

AVIATION...
18Z TAFS... MAIN QUESTION IS WHETHER POST-FRONTAL STRATUS WILL GET
INTO OK TONIGHT AND SUNDAY MORNING. INITIAL FRONT/WINDSHIFT IS
CURRENTLY ACROSS NCENTRAL/NE OK BUT LOW CLOUDS ARE CONFINED TO A
SECONDARY COLD SURGE NOW MOVING S INTO NEB/IA. MODEL RH PROGS DEPICT
A SHALLOW LAYER OF LOW-LEVEL SATURATION BEHIND THE FRONT AS THIS
COLDER AIR BEGINS TO WORK S INTO THE AREA OVERNIGHT. THUS WE WILL
MAINTAIN LOW-MVFR CIGS IN THE TAFS ACROSS N AND CENTRAL OK LATE
TONIGHT AND SUNDAY MORNING.

PREV DISCUSSION... /ISSUED 547 AM CST SAT JAN 29 2011/

AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 00Z WITH OCCASIONAL BKN HIGH
CLOUDS SPREADING IN THIS AFTERNOON. A WEAK SURFACE TROUGH IN
NORTHERN OK WILL DRIFT BACK NORTH INTO KS TODAY. A COLD FRONT WILL
MOVE SOUTH INTO NORTHERN OK AROUND 00Z... REACHING TO NEAR THE RED
RIVER BY THE END OF THE FORECAST PERIOD. LOW CEILINGS AROUND 1K FT
WILL MOVE INTO THE TERMINAL AREAS 1-3 HOURS AFTER FRONTAL PASSAGE.

PREV DISCUSSION... /ISSUED 449 AM CST SAT JAN 29 2011/

DISCUSSION...
TEMPERATURES TODAY WILL AGAIN BE UNSEASONABLY WARM ACROSS MUCH OF
THE AREA WITH HIGHS IN MOST LOCATIONS REACHING THE 70S. FIRE
WEATHER CONCERNS WILL CONTINUE ESPECIALLY IN THE SOUTHWEST WHERE
HUMIDITIES WILL LIKELY FALL TO NEAR 10 PERCENT. AT THIS TIME IT
APPEARS THAT THE WINDS WILL REMAIN MODEST WITH SPEEDS AVERAGING
ONLY 10 TO 15 MPH WITH OCCASIONAL GUSTS TO AROUND 20 MPH.

A COLD FRONT WILL BEGIN MOVING SOUTH THROUGH THE AREA TONIGHT REACHING
SE OK BY EARLY SUNDAY MORNING. MEANWHILE... AN UPPER LEVEL STORM
SYSTEM OVER BAJA WILL TRACK ENE ACROSS TX TONIGHT AND SUNDAY. WHILE
MOST OF THE PRECIPITATION WITH THIS SYSTEM WILL BE IN EASTERN
TX... A FEW SHOWERS COULD ALSO SPREAD INTO THE SOUTHEAST PART OF
OUR CWA TONIGHT AND SUNDAY. WOULD NOT RULE OUT A CLAP OF THUNDER
OR TWO OVERNIGHT. TEMPERATURES ON SUNDAY WILL AVERAGE ABOUT 25
DEGREES COLDER THAN TODAY.

THE NEXT MAJOR UPPER STORM SYSTEM TO AFFECT US WILL BE DROPPING INTO
THE SW US BY MONDAY MORNING. ALTHOUGH WE WILL BE IN BETWEEN UPPER
SYSTEMS SUNDAY NIGHT AND MONDAY... THERE STILL COULD BE SOME
SCATTERED LIGHT DRIZZLE... WITH FREEZING DRIZZLE IN NORTHERN OK...
DEVELOPING BEHIND THE FRONT. ANY ACCUMULATION SHOULD BE VERY
LIGHT.

THE WEATHER IS EXPECTED TO DETERIORATE MONDAY NIGHT AND TUESDAY AS
COLDER AIR CONTINUES TO SPREAD INTO THE REGION WHILE THE UPPER SYSTEM
BEGINS TO MOVE INTO THE SOUTHERN PLAINS. AS TEMPERATURES FALL BELOW
FREEZING OVER A GOOD PART OF CENTRAL... WESTERN AND NORTHERN
OKLAHOMA... A MIXED BAG OF FREEZING/FROZEN PRECIPITATION IS EXPECTED.
THE WINTRY MIX IS EXPECTED TO SPREAD OVER THE REMAINDER OF THE AREA
ON TUESDAY. ATTM... IT APPEARS THE MOSTLY LIKELY AREA FOR THE
HEAVIER SNOW ACCUMULATIONS... PERHAPS 2-4 INCHES... MAY BE OVER
PARTS OF N-CENTRAL INTO WEST CENTRAL OK. SOME ICE WILL ALSO
POSSIBLE MAINLY OVER PARTS OF NORTH CENTRAL INTO CENTRAL OK.
HOWEVER... THIS FAR OUT... THE CONFIDENCE LEVEL IN PREDICTING
SPECIFIC AMOUNTS REMAINS LOW DUE TO UNCERTAINTIES IN THE TIMING
OF THE PRECIPITATION PHASE CHANGES AS IT RELATES TO THE QPF FIELDS.

AS THE UPPER SYSTEMS MOVES THROUGH... MUCH COLDER AIR WILL SURGE
INTO THE AREA ON THE HEELS OF STRONG NORTH WINDS. IT MAY BE THAT
THE HIGHS FOR TUESDAY OCCUR EARLY WITH TEMPERATURES FALLING AS
THE DAY PROGRESSES. THE STRONG WINDS AND FALLING TEMPERATURES
STILL LOOK FAVORABLE FOR GENERATING SUBZERO WIND CHILLS OVER A
GOOD PART OF THE CENTRAL... WEST AND NORTH TUESDAY NIGHT AND
WEDNESDAY.

ANOTHER DISTURBANCE WILL APPROACH THE AREA BY EARLY WEDNESDAY.
WHILE WILL WE STAY WITH A DRY FORECAST FOR THAT TIME PERIOD... WE MAY
NEED TO EVENTUALLY ADD SOME FLURRIES OR SMALL CHANCES OF LIGHT
SNOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 72 36 44 33 / 0 10 0 10
HOBART OK 72 33 42 31 / 0 0 0 10
WICHITA FALLS TX 77 41 48 37 / 10 10 0 10
GAGE OK 68 23 43 22 / 0 0 0 10
PONCA CITY OK 65 28 41 25 / 0 0 0 20
DURANT OK 71 48 55 40 / 10 30 20 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
320 PM CST SAT JAN 29 2011

.DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM CONDITIONS
LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH
AS COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT
BRINGING FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL
MAINTAIN LOW CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING.

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 37 44 31 44 / 10 0 10 10
HOBART OK 33 43 27 44 / 0 0 10 10
WICHITA FALLS TX 39 49 28 53 / 10 0 10 10
GAGE OK 23 39 20 35 / 0 0 10 10
PONCA CITY OK 28 41 25 37 / 10 0 10 10
DURANT OK 54 56 37 52 / 20 20 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
550 PM CST SAT JAN 29 2011

.AVIATION...
COLD FRONT IS EXPECTED TO MOVE INTO NRN OK THIS EVENING AND THE
PROGRESS SWD THROUGH THE AREA BY SUNDAY MORNING. POST FRONTAL ST
EXPECTED TO LAG WINDSHIFT A BIT...BUT MOST SITES SHOULD SEE MVFR
CIGS DEVELOP.

&&

.PREV DISCUSSION... /ISSUED 320 PM CST SAT JAN 29 2011/

.DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM
CONDITIONS LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH AS
COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT BRINGING
FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL MAINTAIN LOW
CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING.

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 37 44 31 44 / 10 0 10 10
HOBART OK 33 43 27 44 / 0 0 10 10
WICHITA FALLS TX 39 49 28 53 / 10 0 10 10
GAGE OK 23 39 20 35 / 0 0 10 10
PONCA CITY OK 28 41 25 37 / 10 0 10 10
DURANT OK 54 56 37 52 / 20 20 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

26/24

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
929 PM CST SAT JAN 29 2011

.DISCUSSION...
THE INITIAL COLD FRONT IS PROGRESSING SOUTH ACROSS OUR FAR
NORTHERN COUNTIES. IT APPEARS TO BE RIGHT ON SCHEDULE... AND
SHOULD REACH OKLAHOMA CITY AROUND MIDNIGHT... THEN EXIT OUT
FORECAST AREA TOMORROW MORNING AROUND SUNRISE. PRE-FRONTAL WINDS
HAVE DROPPED OFF A LOT... AND TEMPERATURES JUST AHEAD OF THE FRONT
HAVE DROPPED DRAMATICALLY AS VERY DRY AIR... LIGHT WINDS... AND
CLEAR SKIES ALLOW FOR VERY EFFICIENT RADIATIONAL COOLING. ONCE THE
FRONT ARRIVES... MANY OF THOSE LOCATIONS WILL SEE THE TEMPERATURE
RISE SUBSTANTIALLY... BEFORE FALLING BACK AGAIN AS THE COLD-AIR
ADVECTION SETS IN.

OTHER THAN THE WIND SHIFT... AND SIGNIFICANT INCREASE IN WIND
SPEEDS... FIRE WEATHER CONDITIONS WILL BECOME MUCH LESS SUPPORTIVE
OF WILDFIRES OVERNIGHT.

FINALLY... A FEW THUNDERSTORMS HAVE FORMED OVER TEXAS... SOUTHWEST
OF THE METROPLEX. THERE IS A SMALL CHANCE THAT SOME OF THIS
CONVECTION WILL AFFECT PARTS OF SOUTH-CENTRAL AND SOUTHEAST
OKLAHOMA OVERNIGHT. IT IS IMPROBABLE THAT THUNDERSTORMS WILL OCCUR
AS FAR NORTH AS OUR FORECAST AREA... BUT A FEW SHOWERS ARE CERTAINLY A
POSSIBILITY.

THE CURRENT FORECAST GENERALLY LOOKS GOOD... OTHER THAN BEING
UNABLE TO ACCOUNT FOR THE WILDLY VARYING TEMPERATURES OVER SHORT
DISTANCES... DUE TO TERRAIN FEATURES AND RADIATIONAL COOLING. AT
THIS TIME... NO UPDATES ARE PLANNED FOR THE OVERNIGHT FORECAST.

&&

.PREV DISCUSSION... /ISSUED 550 PM CST SAT JAN 29 2011/

AVIATION...
COLD FRONT IS EXPECTED TO MOVE INTO NRN OK THIS EVENING AND THE
PROGRESS SWD THROUGH THE AREA BY SUNDAY MORNING. POST FRONTAL ST
EXPECTED TO LAG WINDSHIFT A BIT...BUT MOST SITES SHOULD SEE MVFR
CIGS DEVELOP.

PREV DISCUSSION... /ISSUED 320 PM CST SAT JAN 29 2011/

DISCUSSION...
FIRE... THEN ICE. DRY BREEZY AND RECORD OR NEAR-RECORD WARM
CONDITIONS LEADING TO HOT SPOTS BREAKING OUT ALL ACROSS THE AREA THIS
AFTERNOON. WINDS DECREASING THIS EVENING BEFORE SHIFTING TO NORTH AS
COLD FRONT OVER CENTRAL/SW KS MOVES S THROUGH AREA TONIGHT BRINGING
FIRST SHOT OF COLDER AIR. UPPER SYSTEM OVER TX WILL MAINTAIN LOW
CHANCES OF -RA SE TONIGHT INTO SUNDAY.

COLD SFC HIGH HAS BUILT NICELY OVER CANADA AND WILL PROVIDE THE
COLD AIR THROUGH MONDAY TO SET UP A POTENTIAL MAJOR MESS MONDAY
NIGHT AND TUESDAY. WINTER STORM WATCH IS INEVITIBLE BUT WE WILL
HOLD OFF FOR NOW DUE TO THE WORST OF THE EVENT LIKELY UNFOLDING IN
PERIODS 5/6. STILL MANY VARIABLES AND UNCERTAINTIES REGARDING
PRECIP TYPE AND AMOUNTS - ANOTHER REASON WE ARE HOLDING OFF ON
HEADLINES FOR THE TIME BEING. IT LOOKS LIKE A TRANSITION FROM
RA/DZ TO ICE TO SNOW WILL BE RATHER SWIFT AS THE COLD AIR POURS IN
MONDAY NIGHT AND TUESDAY MORNING. LARGE-SCALE PATTERN FAVORS HEAVY
SNOW SOMEWHERE ACROSS THE AREA BUT TRACK OF UPPER SYSTEM IS
UNCERTAIN AND THEREFORE SO IS THE LOCATION OF THE HEAVIEST
ACCUMULATIONS. STRONG WINDS LEADING TO BLOWING/DRIFTING SNOW AND
POSSIBLY BLIZZARD OR NEAR-BLIZZARD CONDITIONS SOME AREAS BY
TUESDAY... AND DANGEROUS WIND CHILLS -10 TO -20 BY WED MORNING.

ALL RESOURCES TODAY ARE BEING BROUGHT TO BEAR ON THE COMPLEX
EVOLUTION OF EVENTS FROM NOW THROUGH TUE-WED... SO NO BIG CHANGES
AT THIS TIME TO THE FORECAST BEYOND THAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 37 44 31 44 / 10 0 10 10
HOBART OK 33 43 27 44 / 0 0 10 10
WICHITA FALLS TX 39 49 28 53 / 10 0 10 10
GAGE OK 23 39 20 35 / 0 0 10 10
PONCA CITY OK 28 41 25 37 / 10 0 10 10
DURANT OK 54 56 37 52 / 20 20 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
422 AM CST SUN JAN 30 2011

.DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST.

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 46 31 43 17 / 0 0 10 70
HOBART OK 44 27 42 15 / 0 0 10 60
WICHITA FALLS TX 52 28 56 25 / 0 0 10 70
GAGE OK 41 20 30 7 / 0 0 20 50
PONCA CITY OK 40 25 37 16 / 0 10 20 70
DURANT OK 58 37 54 29 / 10 10 10 90

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST SUN JAN 30 2011

.AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

&&

.PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST.

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 46 31 43 17 / 0 0 10 70
HOBART OK 44 27 42 15 / 0 0 10 60
WICHITA FALLS TX 52 28 56 25 / 0 0 10 70
GAGE OK 41 20 30 7 / 0 0 20 50
PONCA CITY OK 40 25 37 16 / 0 10 20 70
DURANT OK 58 37 54 29 / 10 10 10 90

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1009 AM CST SUN JAN 30 2011

.UPDATE...
MAIN UPDATE TO THE PACKAGE THIS MORNING IS TO BE MUCH MORE
PESSIMISTIC WITH CLOUD COVER... AND THEREFORE THE TEMPERATURE
RECOVERY FOR THIS AFTERNOON. SO HAVE INCREASED CLOUD COVERAGE AND
DECREASED AFTERNOON TEMPERATURES. FRONT HAS MOVED THROUGH ALL BUT
THE EXTREME SOUTHEAST PART OF THE WARNING AREA AND TEMPERATURES
WILL BE TURNING COLDER IN ATOKA AND DURANT AS THE FRONT MOVES
THROUGH. STILL INVESTIGATING LATEST MODEL DATA FOR THE MONDAY
NIGHT/TUESDAY STORM SYSTEM.

&&

.PREV DISCUSSION... /ISSUED 547 AM CST SUN JAN 30 2011/

AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST.

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 42 32 44 14 / 0 0 10 70
HOBART OK 41 28 42 11 / 0 0 10 60
WICHITA FALLS TX 49 31 48 15 / 0 0 10 70
GAGE OK 38 18 30 8 / 0 0 20 50
PONCA CITY OK 38 23 41 14 / 0 10 20 70
DURANT OK 56 41 48 28 / 10 10 10 90

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1148 AM CST SUN JAN 30 2011

.AVIATION...
LOW CLOUDS ARE PERSISTENT AND WILL KEEP LOW CLOUDS MORE WIDESPREAD
WITH THIS TAF PACKAGE. CLOUDS ERODING AT SOUTHERN END OVER NORTH
TEXAS WILL LIKELY ALLOW CLOUD EROSION AT KSPS THIS AFTERNOON...
AND SUBSIDENCE OVER KANSAS MAY MOVE INTO NORTHERN OKLAHOMA TAF
SITES TEMPORARILY THIS AFTERNOON/EVENING. OTHERWISE HAVE IMPROVED
CIGS AT MOST STATIONS TO MVFR FOR A WHILE THIS AFTERNOON AND
EVENING BUT KEPT THE CEILINGS DESPITE COMPUTER MODEL TENDENCIES
TO COMPLETELY ERODE THE LOW CLOUDS. LOW LEVELS REMAIN QUITE MOIST
AND EXPECT CIGS AND VSBYS TO LOWER AGAIN OVERNIGHT WITH IFR TO
LIFR CONDITIONS EXPECTED AT MOST STATIONS. BEYOND THE VALID TIME
OF THESE TAFS... POOR FLIGHT CONDITIONS ARE EXPECTED TO PERSIST
WITH WINTER STORM AND ASSOCIATED WINTER PRECIPITATION AND HIGH
WINDS MOVING THROUGH THE AREA MONDAY NIGHT AND TUESDAY WITH
CHANCES OF FREEZING RAIN... SLEET AND SNOW.. AND WIND GUSTS OVER
30 KNOTS EXPECTED.

&&

.PREV DISCUSSION... /ISSUED 1009 AM CST SUN JAN 30 2011/

UPDATE...
MAIN UPDATE TO THE PACKAGE THIS MORNING IS TO BE MUCH MORE
PESSIMISTIC WITH CLOUD COVER... AND THEREFORE THE TEMPERATURE
RECOVERY FOR THIS AFTERNOON. SO HAVE INCREASED CLOUD COVERAGE AND
DECREASED AFTERNOON TEMPERATURES. FRONT HAS MOVED THROUGH ALL BUT
THE EXTREME SOUTHEAST PART OF THE WARNING AREA AND TEMPERATURES
WILL BE TURNING COLDER IN ATOKA AND DURANT AS THE FRONT MOVES
THROUGH. STILL INVESTIGATING LATEST MODEL DATA FOR THE MONDAY
NIGHT/TUESDAY STORM SYSTEM.

PREV DISCUSSION... /ISSUED 547 AM CST SUN JAN 30 2011/

AVIATION...
/12Z TAFS/
MVFR CEILINGS... WITH A FEW AREAS LOWERING TO IFR... LOCATED ACROSS
CENTRAL... WESTERN... AND NORTHERN OK WILL CONTINUE TO SPREAD
SOUTH THIS MORNING. THE LOW CLOUDS WILL BREAK UP ACROSS WESTERN OK
AND NORTH TX BY AFTERNOON WITH CEILINGS GRADUALLY LIFTING OVER THE
REMAINDER OF THE AREA. GUSTY N-NE WINDS THIS MORNING WILL DIMINISH
THIS AFTERNOON. LOW CLOUDS AND LIGHT FOG WILL FILL BACK INTO
WESTERN OK AND NORTH TX TOWARDS THE END OF THE FORECAST PERIOD.

PREV DISCUSSION... /ISSUED 422 AM CST SUN JAN 30 2011/

DISCUSSION...
A COLD FRONT MOVING INTO SOUTH CENTRAL OK EARLY THIS MORNING
SHOULD MOVE SOUTH OF THE RED RIVER LATER THIS MORNING. AREAS OF
FOG WILL OCCUR AHEAD OF THE FRONT FOR A FEW HOURS THIS MORNING...
BUT SHOULD DISSIPATE SHORTLY AFTER THE PASSAGE OF THE FRONT.
MEANWHILE... AN UPPER LEVEL DISTURBANCE LOCATED OVER FAR SW TX/NRN
MEX WILL CONTINUE TO TRACK EAST ACROSS CENTRAL/SOUTHERN TX TODAY
WHILE A FEW SHOWERS ASSOCIATED WITH THIS SYSTEM COULD BRUSH FAR
SOUTHEAST OK.

WEAK LOW-LEVEL ISENTROPIC LIFTING COULD RESULT IN SOME LIGHT
DRIZZLE/FREEZING DRIZZLE ACROSS NORTHERN OK FOR A FEW HOURS MONDAY
MORNING. PRIMARY ATTENTION SHIFTS NOW TO A STRONG STORM SYSTEM
MOVING ONTO THE WEST COAST EARLY THIS MORNING. THE SYSTEM WILL
BRING INCREASING CHANCES FOR WINTRY PRECIPITATION TO THE AREA
BEGINNING MONDAY NIGHT. A 1052 MB HIGH PRESSURE CENTER IS FORECAST
TO BUILD SOUTH THROUGH THE PLAINS MONDAY AND MONDAY NIGHT...
BRINGING MUCH COLDER TEMPERATURES TO THE AREA. A WINTER STORM
WATCH HAS BEEN ISSUED FOR MUCH OF NORTHERN... CENTRAL AND PARTS OF
WESTERN OK FOR THE POSSIBILITY OF SIGNIFICANT WINTRY PRECIPITATION
AND BITTERLY COLD WIND CHILLS MONDAY NIGHT INTO TUESDAY.

WITH THE COLD AIR DEEPENING FAIRLY QUICKLY... BELIEVE PERIODS OF
FREEZING RAIN WILL BE RELATIVELY SHORT... WITH THE SOUTH CENTRAL
AND SOUTHEAST SEEING THE MOST FREEZING RAIN AND SLEET. SOME AREAS
IN THE WATCH AREA COULD SEE 4 OR MORE INCHES OF SNOWFALL...
ALTHOUGH PINPOINTING HEAVIEST SNOW AREAS IS DIFFICULT ATTM. STRONG
NORTH WINDS AND FALLING TEMPERATURES LATE MONDAY NIGHT INTO
TUESDAY WILL CREATE BITTERLY COLD WIND CHILLS ALONG WITH THE
POSSIBILITY OF BLOWING/DRIFTING SNOW. THE WINTER PRECIPITATION IS
EXPECTED TO TAPER OFF FAIRLY QUICKLY BY TUESDAY AFTERNOON AS THE
UPPER SYSTEM STARTS TO SHIFT TO THE EAST.

THE COLD WEATHER... AND SUBFREEZING TEMPERATURES... ARE EXPECTED
TO LINGER INTO THURSDAY ACROSS MUCH OF THE AREA.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 42 32 44 14 / 0 0 10 70
HOBART OK 41 28 42 11 / 0 0 10 60
WICHITA FALLS TX 49 31 48 15 / 0 0 10 70
GAGE OK 38 18 30 8 / 0 0 20 50
PONCA CITY OK 38 23 41 14 / 0 10 20 70
DURANT OK 56 41 48 28 / 10 10 10 90

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

TX...NONE.
&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
232 PM CST SUN JAN 30 2011

.DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP NOW
APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY. WE
WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL EXPAND
THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND OUR TX
ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM WARNING
WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR IMPACTS...
AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND CHILLS ARE
-15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT INTO WED
MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE TO
BLIZZARD WARNING BY TUESDAY MORNING.

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE.

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 32 44 15 20 / 10 10 100 100
HOBART OK 28 42 12 20 / 0 10 90 70
WICHITA FALLS TX 31 48 16 20 / 0 10 100 70
GAGE OK 18 30 9 14 / 0 10 70 60
PONCA CITY OK 23 41 15 18 / 20 10 100 100
DURANT OK 41 48 29 29 / 20 20 100 100

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR
OKZ007-008-012-013-018>020-023>031-040.

WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING
FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR TXZ083>090.

&&

$$

24 & 26

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
540 PM CST SUN JAN 30 2011

.AVIATION...
ALTHOUGH LOW CLOUDS HAVE DIMINISHED AROUND THE PERIPHERY OF THE
FA...CLOUDS HAVE PERSISTED AT TAF SITES. LOW LEVELS REMAIN MOIST AND
WINDS TO REMAIN LIGHT AND BECOME MORE ELY. EXPECT CIGS/VSBYS TO
DETERIORATE OVERNIGHT. IFR CONDITIONS LIKELY AT MOST SITES LATER
TONIGHT. SOME IMPROVEMENT LIKELY DURING THE DAY ON MONDAY...BUT MVFR
CONDITIONS MAY PREVAIL IN MOST AREAS.

&&

.PREV DISCUSSION... /ISSUED 232 PM CST SUN JAN 30 2011/

.DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP
NOW APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY.
WE WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL
EXPAND THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND
OUR TX ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM
WARNING WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR
IMPACTS... AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND
CHILLS ARE -15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT
INTO WED MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE
TO BLIZZARD WARNING BY TUESDAY MORNING.

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE.

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 32 44 15 20 / 10 10 100 100
HOBART OK 28 42 12 20 / 0 10 90 70
WICHITA FALLS TX 31 48 16 20 / 0 10 100 70
GAGE OK 18 30 9 14 / 0 10 70 60
PONCA CITY OK 23 41 15 18 / 20 10 100 100
DURANT OK 41 48 29 29 / 20 20 100 100

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR
OKZ007-008-012-013-018>020-023>031-040.

WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON FOR
OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING
FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON FOR TXZ083>090.

&&

$$

24 & 26

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
948 PM CST SUN JAN 30 2011

.DISCUSSION...
LOW-LEVEL MOISTURE IS MAINTAINING A LARGE AREA OF CLOUD COVER OVER
OUR FORECAST AREA THIS EVENING. THE SOUTHERN EDGE OF THE CLOUDS
FORMS A ZIGZAG PATTERN ACROSS THE SOUTHERN PART OF OUR AREA. THE
WIND PATTERN OVER THE NEXT 24 HOURS OR SO SUGGESTS THAT THE
SOUTHERN EDGE MAY WELL REMAIN FAIRLY RAGGED... AND THAT OUR TEXAS
AND SOUTHERN OKLAHOMA COUNTIES MAY SEE A LITTLE SUN NOW AND THEN
DURING THE DAY TOMORROW. WE WILL RAISE THE DAYTIME TEMPERATURES A
BIT FOR THE SOUTH AS A RESULT. THIS... HOWEVER... IS A LOW-
CONFIDENCE CHANGE.

SIMILARLY... PERSISTENT CLOUD COVER WILL HOLD TEMPERATURES UP
OVERNIGHT OVER MOST OF OKLAHOMA. THIS MEANS THAT WE WILL RAISE
MINIMUM TEMPERATURES SIGNIFICANTLY IN A FEW SPOTS IN NORTHERN
OKLAHOMA. THIS WILL ALSO LEAD TO NON-DIURNAL TEMPERATURE PATTERNS
TOMORROW... AS DAYTIME HIGHS IN MANY PLACES WILL BE REACHED EARLY
IN THE DAY.

RADAR IN HIGH-SENSITIVITY MODE SHOWS SOME WEAK ECHOES... ALTHOUGH
SURFACE REPORTS SHOW NOTHING HITTING THE GROUND AT THIS POINT.
GIVEN THE SATURATED LOW-LEVELS OF THE ATMOSPHERE... AND SOME WEAK
ISENTROPIC LIFT FORECAST OVERNIGHT... WE WILL RETAIN THE DRIZZLE
AND FREEZING DRIZZLE CHANCES NEAR AND EAST OF I-35.

THE BIG STORM TOMORROW NIGHT AND TUESDAY STILL LOOKS LIKE IT WILL
BE MAINLY SNOW... EXCEPT OVER SOUTH-CENTRAL AND SOUTHEAST
OKLAHOMA... WHERE A LONGER PERIOD OF FREEZING DRIZZLE/RAIN OR
SLEET APPEARS MORE LIKELY. MODEL DATA ARE STILL COMING IN... SO WE
WILL NOT MAKE ANY CHANGES TO LATER PERIODS AT THIS POINT.

&&

.PREV DISCUSSION... /ISSUED 540 PM CST SUN JAN 30 2011/

AVIATION...
ALTHOUGH LOW CLOUDS HAVE DIMINISHED AROUND THE PERIPHERY OF THE
FA...CLOUDS HAVE PERSISTED AT TAF SITES. LOW LEVELS REMAIN MOIST AND
WINDS TO REMAIN LIGHT AND BECOME MORE ELY. EXPECT CIGS/VSBYS TO
DETERIORATE OVERNIGHT. IFR CONDITIONS LIKELY AT MOST SITES LATER
TONIGHT. SOME IMPROVEMENT LIKELY DURING THE DAY ON MONDAY...BUT MVFR
CONDITIONS MAY PREVAIL IN MOST AREAS.

PREV DISCUSSION... /ISSUED 232 PM CST SUN JAN 30 2011/

DISCUSSION...
POTENTIALLY CRIPPLING COMBINATION OF WIND... COLD AND WINTER PRECIP
NOW APPEARS IMMINENT FOR MUCH OF THE AREA MONDAY NIGHT INTO TUESDAY.
WE WILL BE ISSUING A PDS VERSION OF THE WSW BY 3 PM WHICH WILL
EXPAND THE WINTER STORM WATCH INTO THE REST OF WCENTRAL/SW OK AND
OUR TX ZONES... UPGRADE CENTRAL AND NCENTRAL OK TO A WINTER STORM
WARNING WHERE CONFIDENCE IS HIGHEST IN THE POTENTIAL FOR MAJOR
IMPACTS... AND ADD A WIND CHILL WATCH FOR NW OK WHERE COMPUTED WIND
CHILLS ARE -15 OR LESS DURING MUCH OF THE PERIOD FROM LATE MON NIGHT
INTO WED MORNING. PARTS OF THE AREA EVENTUALLY COULD NEED AN UPGRADE
TO BLIZZARD WARNING BY TUESDAY MORNING.

CONDITIONS LOOK OKAY FOR THE MOST PART BETWEEN NOW AND LATE
MONDAY... ALTHOUGH PARTS OF N AND CENTRAL OK MAY HAVE TO DEAL WITH A
LITTLE FREEZING DRIZZLE LATER TONIGHT INTO MONDAY. WE WILL HANDLE
THAT WITH AN ADVISORY IF NEEDED. OTHERWISE THE EMPHASIS AT THIS TIME
IS ON GETTING EVERYONE TO TAKE PROPER STEPS NOW BY OBTAINING
NECESSARY PROVISIONS... AND NOT PLANNING ON GOING ANYWHERE FROM LATE
MONDAY NIGHT INTO TUESDAY UNLESS ABSOLUTELY NECESSARY.

ALL INDICATIONS ARE THAT CONDITIONS WILL DETERIORATE RAPIDLY AT SOME
POINT MONDAY NIGHT AS N-NE WINDS INCREASE AND COLD AIR GETS COLDER
AND DEEPER. PRECIP IS FORECAST TO INCREASE IN COVERAGE AND INTENSITY
00-06Z AND ESPECIALLY 06-12Z MONDAY NIGHT. TRANSITION FROM LIQUID TO
FREEZING TO FROZEN SHOULD BE FAIRLY RAPID GIVEN THE STRONG LOW-LEVEL
COLD ADVECTION... ALTHOUGH SLEET MAY PERSIST INTO TUE MORNING SE
PARTS OF AREA. LIMITED ICE ACCRETION WILL BE OFFSET BY STRONG
WINDS... WHICH MAY BRING DOWN EVEN LIGHTLY-COATED TREES AND POWER
LINES. FOCUS WILL BE LESS ON SNOW/ICE AMOUNTS AND MORE ON THE
POTENTIAL FOR PARALYZING WINTER STORM CONDITIONS DUE TO SNOW AND
BLOWING/DRIFTING ALONG WITH LIFE-THREATENING WIND CHILLS. THAT BEING
SAID... WE CURRENTLY PAINT A BROAD BAND OF 4-8 INCHES CENTERED
ROUGHLY LAWTON-OKC-STILLWATER WITH 2-5 OVER MUCH OF THE REST OF THE
WATCH AREA. GIVEN THE LIKELIHOOD OF SEVERE BLOWING/DRIFTING... WE
MAY NEVER REALLY KNOW. OBVIOUS ANALOG WOULD BE XMAS EVE 2009... AND
FOR SOME AREAS THIS MAY BE AS BAD OR WORSE THAN THAT ONE.

SNOW TAPERS OFF LATE TUE BUT WIND AND BLOWING/DRIFTING TO CONTINUE
AS TEMPS AND WIND CHILLS DROP FURTHER. WIND CHILL ADVISORIES
CERTAINLY WILL BE NEEDED ON THE BACK SIDE OF THIS EVENT... OR WIND
CHILL WARNINGS EXPANDED. THIS MAY BE THE COLDEST THAT MANY AREAS
HAVE EXPERIENCED IN YEARS.

STANDARD INITIALIZATION ROUTINE INVOKED FOR THE REST OF THE
FORECAST. MAY HAVE TO ADD SOME LOW POPS EVENTUALLY FOR ANOTHER
EVENT TOWARD THE END OF THE WORK WEEK BUT FOCUS IS SQUARELY ON THE
EARLY-WEEK EVENT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 28 42 15 20 / 10 10 100 100
HOBART OK 26 42 12 20 / 0 10 90 70
WICHITA FALLS TX 29 55 16 20 / 0 10 100 70
GAGE OK 24 30 9 14 / 0 10 70 60
PONCA CITY OK 28 37 15 18 / 20 10 100 100
DURANT OK 38 56 29 29 / 20 20 100 100

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR
OKZ007-008-012-013-018>020-023>031-040.

WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR OKZ006-011-014>017-021-022-032>039-041-042-044>046-050.

WIND CHILL WATCH FROM MONDAY EVENING THROUGH WEDNESDAY MORNING
FOR OKZ004-005-009-010.

TX...WINTER STORM WATCH FROM MONDAY EVENING THROUGH TUESDAY AFTERNOON
FOR TXZ083>090.

&&

$$

23/02

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
412 AM CST MON JAN 31 2011

.DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 41 14 16 5 / 10 100 100 20
HOBART OK 38 11 15 2 / 10 90 70 0
WICHITA FALLS TX 50 15 22 8 / 10 100 70 0
GAGE OK 33 8 12 -3 / 10 70 60 10
PONCA CITY OK 38 14 18 1 / 10 100 100 20
DURANT OK 51 29 29 12 / 20 100 100 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
043>045-047-048-050>052.

WIND CHILL WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING FOR
OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR TXZ083>090.

&&

$$

06/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
547 AM CST MON JAN 31 2011

.AVIATION...
EXCEPT FOR SOME BREAKS IN THE CLOUD COVER TODAY NEAR AND SOUTH OF
THE RED RIVER... GENERALLY MVFR CONDITIONS WILL PREVAIL INTO THE
EVENING HOURS. OCCASIONAL IFR CEILINGS AND REDUCED VISIBILITIES IN
FOG WILL OCCUR ACROSS NW OK THIS MORNING. A DEVELOPING WINTER
STORM WILL SPREAD A WINTRY MIX OF PRECIPITATION ACROSS MUCH OF THE
REGION... BEGINNING IN NW OK THIS EVENING... AND SPREADING OVER ALL
TERMINALS DURING THE NIGHT.

&&

.PREV DISCUSSION... /ISSUED 412 AM CST MON JAN 31 2011/

DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 41 14 16 5 / 10 100 100 20
HOBART OK 38 11 15 2 / 10 90 70 0
WICHITA FALLS TX 50 15 22 8 / 10 100 70 0
GAGE OK 33 8 12 -3 / 10 70 60 10
PONCA CITY OK 38 14 18 1 / 10 100 100 20
DURANT OK 51 29 29 12 / 20 100 100 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
043>045-047-048-050>052.

WIND CHILL WATCH FROM THIS EVENING THROUGH WEDNESDAY MORNING FOR
OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR TXZ083>090.

&&

$$

06/32/32

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1139 AM CST MON JAN 31 2011

.AVIATION...
GENERALLY MVFR CONDITIONS WILL PREVAIL THROUGH THE AFTERNOON.
BIG CHANGES ARE ON THE WAY AS WE ARE CONTINUING TO WATCH A
DEVELOPING WINTER STORM. THE SIGNIFICANT WINTER STORM WILL BEGIN TO
AFFECT MUCH OF THE REGION LATE THIS EVENING INTO A GOOD PORTION OF
TOMORROW. A VARIETY OF WINTER WEATHER WILL AFFECT ALL SITES...
BEFORE SWITCHING OVER TO ALL SNOW BY 0112Z. IFR CONDITIONS WILL BE
THE RULE AS VISIBILITIES WILL FALL BELOW ONE MILE AT TIMES WITH
THE STRONG NORTH WINDS AND HEAVIER SNOWFALL. ALTHOUGH NOT INCLUDED
IN THIS FORECAST...IT IS NOT OUT OF THE QUESTION TO HAVE A PERIOD
OF LIFR CONDITIONS FROM KLAW...NORTHEAST THROUGH KOUN AND KOKC...
AND NORTH TO KPNC AFTER SUNRISE TOMORROW MORNING. THE STORM SHOULD
BEGIN TO EXIT TOWARD THE END OF THE TAF PERIOD... ALTHOUGH LIGHT
SNOW... AND CONTINUED BLOWING SNOW WILL CONTINUE MOST AREAS.

&&

.PREV DISCUSSION... /ISSUED 547 AM CST MON JAN 31 2011/

AVIATION...
EXCEPT FOR SOME BREAKS IN THE CLOUD COVER TODAY NEAR AND SOUTH OF
THE RED RIVER... GENERALLY MVFR CONDITIONS WILL PREVAIL INTO THE
EVENING HOURS. OCCASIONAL IFR CEILINGS AND REDUCED VISIBILITIES IN
FOG WILL OCCUR ACROSS NW OK THIS MORNING. A DEVELOPING WINTER
STORM WILL SPREAD A WINTRY MIX OF PRECIPITATION ACROSS MUCH OF THE
REGION... BEGINNING IN NW OK THIS EVENING... AND SPREADING OVER ALL
TERMINALS DURING THE NIGHT.

PREV DISCUSSION... /ISSUED 412 AM CST MON JAN 31 2011/

DISCUSSION...
MAIN FOCUS CONTINUES TO BE ON DEVELOPING WINTER STORM THAT WILL
AFFECT THE AREA TONIGHT AND TUESDAY. UNTIL THEN... MOSTLY CLOUDY
AND COOL CONDITIONS WILL PREVAIL TODAY WITH SOME PATCHES OF VERY LIGHT
DRIZZLE/FREEZING DRIZZLE POSSIBLE ACROSS NORTHERN OKLAHOMA. BY
TONIGHT... AN UPPER LEVEL STORM SYSTEM WILL MOVE FROM THE SW US
AND INTO THE SOUTHERN PLAINS. AT THE SAME TIME... A STRONG HIGH
PRESSURE RIDGE WILL BUILD SOUTHWARD THROUGH THE PLAINS BRINGING
MUCH COLDER TEMPERATURES TO THE REGION. THE PAST FEW MODEL RUNS
CONTINUE TO SHOW PRETTY GOOD CONSISTENCY REGARDING THE LOCATION
AND AMOUNTS OF THE HEAVIER SNOWFALL. WE ARE STILL LOOKING FOR THE
HIGHEST AMOUNTS TO BE ACROSS CENTRAL AND NORTH CENTRAL OK WHERE
4-8 INCHES ARE EXPECTED... WITH ISOLATED HIGHER TOTALS POSSIBLE.
HOWEVER... WHILE WE HAVE NOTED THAT THE LATEST 06Z NAM DEVELOPS A
RATHER SHARP SNOWFALL GRADIENT GENERALLY NW OF I-44 IN CENTRAL
OK... WE WILL SEE IF THAT TREND PERSISTS IN OTHER MODELS AND LATER
RUNS.

WE EXPECT FREEZING/FROZEN PRECIPITATION TO DEVELOP THIS EVENING
AND INCREASE THROUGH THE NIGHT. AS THE COLD AIR DEEPENS... THE
MIXED PRECIPITATION WILL CHANGE OVER TO SNOW FROM NW TO SE TONIGHT
AND INTO EARLY TUESDAY. THE SOUTHEAST COULD SEE THE MOST ICE WITH
SOME FREEZING RAIN AND SLEET. THAT AREA WILL SHOULD ALSO HAVE THE
HIGHEST QPF AMOUNTS... BUT TIMING OF THE PHASE-CHANGES WILL BE
SOMEWHAT PROBLEMATIC. MEANWHILE... THE PRESENCE OF MID-LEVEL
CONVECTIVE INSTABILITY SUGGESTS THAT A FEW T-STORMS WILL ALSO BE
POSSIBLE OVER THE SOUTHERN HALF OF OK AND N-TX TONIGHT.

THE PRECIPITATION SHOULD DECREASE IN INTENSITY BY MIDDAY
TUESDAY... ALTHOUGH LIGHT SNOW COULD PERSIST THROUGH EARLY
EVENING. THE OTHER SIGNIFICANT ISSUE WILL BE THE STRONG WINDS AND
VERY COLD TEMPERATURES POURING INTO THE REGION TONIGHT AND
TUESDAY. NOT ONLY COULD THE WINTRY PRECIPITATION MAKE TRAVEL
HAZARDOUS... BUT DANGEROUS WIND CHILLS WILL ALSO BE A HAZARD FOR
ANYONE CAUGHT OUT IN THE WEATHER.

ONCE THE THE VERY COLD TEMPERATURES MOVE IN... WITH LOWS IN THE
SINGLE DIGITS AND EVEN FALLING BELOW ZERO IN PARTS OF NORTHERN
OK... MOST LOCATIONS WILL LIKELY NOT GET ABOVE FREEZING UNTIL
FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 41 14 16 5 / 10 100 100 20
HOBART OK 38 11 15 2 / 10 90 70 0
WICHITA FALLS TX 50 15 22 8 / 10 100 70 0
GAGE OK 33 8 12 -3 / 10 70 60 10
PONCA CITY OK 38 14 18 1 / 10 100 100 20
DURANT OK 51 29 29 12 / 20 100 100 20

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY
FOR OKZ006>008-011>013-015>020-022>032-035-038>042-046.

WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR OKZ004-005-009-010-014-021-033-034-036-037-
043>045-047-048-050>052.

WIND CHILL WATCH FROM 6 PM CST THIS EVENING THROUGH WEDNESDAY
MORNING FOR OKZ004-005-009-010.

TX...WINTER WEATHER ADVISORY FROM 6 PM THIS EVENING TO 6 PM CST
TUESDAY FOR TXZ083>090.

&&

$$

TY/24/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
346 PM CST MON JAN 31 2011

.DISCUSSION...
...BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA.
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 16 17 5 12 / 100 100 20 10
HOBART OK 13 16 2 12 / 90 70 0 0
WICHITA FALLS TX 19 23 8 15 / 100 70 0 10
GAGE OK 9 13 -3 14 / 80 60 10 10
PONCA CITY OK 15 19 1 13 / 100 100 20 10
DURANT OK 28 30 12 17 / 100 100 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY FOR
OKZ008-012-013-018>020-024>026-029-030.

WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY
FOR OKZ004>007-009>011-014>017-021>023-027-028-031>047-050-
051.

WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR
OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO 6 PM CST
TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY
FOR TXZ083>090.

&&

$$

24/22
BURKE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
533 PM CST MON JAN 31 2011

.AVIATION...
A NARROW BAND OF VFR CONDITIONS AFFECTING KLAW AND KSPS WILL FILL
IN THIS EVENING. ALSO... A SMALL AREA OF CONVECTION IS LIKELY TO
REACH KSPS BEFORE WEAKENING. TEMPERATURE PROFILES SUGGEST SOME PL
WILL MIX WITH RAIN IN THE STORMS. CONDITIONS WILL DETERIORATE
RAPIDLY OVERNIGHT... FROM WEST TO EAST... MOSTLY AFTER 04Z THIS
EVENING. EXPECT EXTREMELY POOR CONDITIONS IN SN/BLSN AT KOKC...
KOUN... AND KPNC TOMORROW MORNING... AND POOR CONDITIONS
ELSEWHERE. ALTHOUGH THE SNOWFALL SHOULD TAPER OFF SIGNIFICANTLY IN
THE AFTERNOON... STRONG WINDS WILL CONTINUE... AND BLSN IS
EXPECTED TO DIMINISH SLOWLY WITH TIME.

&&

.PREV DISCUSSION... /ISSUED 346 PM CST MON JAN 31 2011/

DISCUSSION...
..BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA.
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 16 17 5 12 / 100 100 20 10
HOBART OK 13 16 2 12 / 90 70 0 0
WICHITA FALLS TX 19 23 8 15 / 100 70 0 10
GAGE OK 9 13 -3 14 / 80 60 10 10
PONCA CITY OK 15 19 1 13 / 100 100 20 10
DURANT OK 28 30 12 17 / 100 100 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY FOR
OKZ008-012-013-018>020-024>026-029-030.

WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY
FOR OKZ004>007-009>011-014>017-021>023-027-028-031>047-050-
051.

WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR
OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO 6 PM CST
TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING FROM 10 PM THIS EVENING TO 6 PM CST TUESDAY
FOR TXZ083>090.

&&

$$

02/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1145 PM CST MON JAN 31 2011

.AVIATION...
CONDITIONS WILL CONTINUE TO DETERIORATE RAPIDLY OVERNIGHT AS A
WINTER STORM SYSTEM MOVES INTO TEXAS AND OKLAHOMA. MAXIMUM LIFT
LOOKS LIKE IT WILL OCCUR BETWEEN 06Z AND 12Z AT MOST SITES...
WHICH SHOULD CORRESPOND TO THE HEAVIEST SNOWFALL. STRONG NORTH
WINDS WILL CAUSE EXTREMELY LOW VISIBILITIES AND CEILINGS IN
BLOWING SNOW. THE SNOW SHOULD TAPER OFF TOWARD 1800Z TOMORROW...
BUT WINDS WILL CONTINUE... AND CONDITIONS WILL BE MVFR AT THE VERY
BEST DURING THE AFTERNOON. WINDS SHOULD SUBSIDE SOMEWHAT AFTER
0000Z TOMORROW EVENING... REDUCING THE BLOWING SNOW... AND
RESULTING IN... WE HOPE... VFR OR HIGH-END MVFR CONDITIONS AT
MOST SITES. IT APPEARS THE KOKC AND KOUN WILL TAKE THE BRUNT OF
THE SNOWFALL... AND THEREFORE THE BLSN. WE HAVE INCLUDED A ZERO
VSBY AT KOUN DURING THE EXPECTED HEIGHT OF THE STORM... AS
SNOWFALL RATES ARE EXPECTED TO BE EXTREMELY HIGH FOR A COUPLE OF
HOURS.

&&

.PREV DISCUSSION... /ISSUED 533 PM CST MON JAN 31 2011/

AVIATION...
A NARROW BAND OF VFR CONDITIONS AFFECTING KLAW AND KSPS WILL FILL
IN THIS EVENING. ALSO... A SMALL AREA OF CONVECTION IS LIKELY TO
REACH KSPS BEFORE WEAKENING. TEMPERATURE PROFILES SUGGEST SOME PL
WILL MIX WITH RAIN IN THE STORMS. CONDITIONS WILL DETERIORATE
RAPIDLY OVERNIGHT... FROM WEST TO EAST... MOSTLY AFTER 04Z THIS
EVENING. EXPECT EXTREMELY POOR CONDITIONS IN SN/BLSN AT KOKC...
KOUN... AND KPNC TOMORROW MORNING... AND POOR CONDITIONS
ELSEWHERE. ALTHOUGH THE SNOWFALL SHOULD TAPER OFF SIGNIFICANTLY IN
THE AFTERNOON... STRONG WINDS WILL CONTINUE... AND BLSN IS
EXPECTED TO DIMINISH SLOWLY WITH TIME.

PREV DISCUSSION... /ISSUED 346 PM CST MON JAN 31 2011/

DISCUSSION...
.BLIZZARD AND OTHER DANGEROUS WINTER WEATHER TUESDAY...

AN UPPER TROUGH WILL SWING INTO A NEGATIVELY TILTED CONFIGURATION AS
IT IS KICKED OUT OF THE DESERT SOUTHWEST TOWARD CENTRAL OKLAHOMA
TUESDAY MORNING. THE TROUGH WILL ENCOUNTER A TIGHTENING FRONTAL ZONE
SEPARATING HUMID MARITIME POLAR AIR FROM MID WINTER ARCTIC. DEEP
CYCLOGENESIS WILL OCCUR OVER OKLAHOMA AND NORTH TEXAS. LIFTING IS
TYPICALLY MOST INTENSE DURING THIS TYPE OF DEEPENING...MEANING
WIDESPREAD PRECIPITATION...RELATIVELY HEAVY FOR MID WINTER.

DURING THE EVENING...MOST SHOWERS CONFINED TO THE RED RIVER AREA.
PRECIP WILL INCREASE AFTER MIDNIGHT...AND AS THE CYCLONE DEVELOPS
THERE WILL BE A TRANSITION OF PRECIP TYPE. A WARM NOSE IN THE
SOUNDINGS...LEFT OVER FROM OUR ANOMALOUSLY WARM WEEKEND...WILL LEAD
TO A PERIOD OF RAIN...FREEZING RAIN...AND SLEET FROM CENTRAL
OKLAHOMA SOUTHWESTWARD. THIS CREATES SOME CONFUSION... AS THE NAM
SNOW ALGORITHM KICKS OUT HEAVY SNOW IN A BAND ACROSS NORTH TEXAS AND
SOUTHERN OKLAHOMA TONIGHT. GIVEN A STRONG 3-5 DEGREE CELSIUS WARM
NOSE...ATOP INCREASING SURFACE COLD ADVECTION...THIS BAND WILL
LIKELY CONSIST OF FREEZING RAIN AND SLEET. THUNDER IS ALSO LIKELY
FROM CENTRAL OKLAHOMA SOUTHWESTWARD. WE INCREASED ICE ACCUMULATION
UP TO ONE QUARTER INCH...AND THIS IS ONE REASON OUR SNOW TOTALS
DECREASE TOWARD THE SOUTH...ESPECIALLY SINCE THE STRONG LIFT WILL
SHIFT UP INTO CENTRAL AND NORTHERN OKLAHOMA BY THE TIME TEMPERATURES
ARE SUPPORTIVE OF ALL SNOW. AN EARLIER CHANGEOVER...THOUGH...WOULD
MEAN MORE SNOW...POSSIBLY HEAVY...INTO SOUTH CENTRAL AND EAST
CENTRAL OKLAHOMA. LATER SHIFTS WILL NEED TO WATCH THIS CLOSELY.

BY MORNING...THE MID LEVEL TROUGH WILL CLOSE OFF...AND MODELS ARE
FAIRLY CONSISTENT IN PLACEMENT OF THE 700 MB LOW NEAR OR JUST EAST
OF OKLAHOMA CITY BY 9 AM TO NOON. FORECAST SOUNDINGS SHOW STEEP
UPPER LEVEL LAPSE RATES AND STRONG...DEEP ASCENT...CAPABLE OF
PRODUCING HEAVY SNOW AND EVEN ISOLATED THUNDER. THIS IS REFLECTED IN
THE SNOW GRIDS FROM THE NAM AND SREF...WHICH PRODUCE IMPRESSIVE SNOW
RATES...MORE THAN ONE INCH PER HOUR...DURING THE MORNING. ALSO ON
TUESDAY...THE GRADIENT BETWEEN A 1052 MB ARCTIC HIGH AND ROUGHLY 995
MB LOW WILL DRIVE A DANGEROUS NORTHWESTERLY WIND DURING AND
FOLLOWING THE STORM. THE MOS CAME UP CLOSER TO WHAT WE WOULD EXPECT
WITH THIS GRADIENT...FORECASTING 35 MPH SUSTAINED WINDS. GUSTS OVER
45 MPH SHOULD BE COMMON. FOR THIS REASON...WE UPGRADED TO BLIZZARD
WARNING IN THE AREA WHERE HEAVY SNOW RATES ARE MOST CERTAIN. NEAR
BLIZZARD CONDITIONS ARE LIKELY TO EXIST ELSEWHERE AS WELL...AND IT
WILL GENERALLY BE AN EXTREMELY DANGEROUS DAY TO BE TRAVELING. EVEN
PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED. WIND CHILL
TEMPERATURES WILL BE COLDER THAN MANY OKLAHOMANS AND TEXANS HAVE
EXPERIENCED IN MORE THAN TEN YEARS.

BECAUSE A WIND CHILL WATCH HAD BEEN IN EFFECT IN THE NORTHWEST...WE
UPGRADED TO WARNING THERE THROUGH WEDNESDAY MORNING. OTHER AREAS
WILL NEED A WIND CHILL ADVISORY BY TUESDAY EVENING...BUT FOR NOW WE
HAVE WRAPPED THE WIND CHILL MESSAGE INTO THE BLIZZARD AND WINTER
STORM WARNING PRODUCTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 16 17 5 12 / 100 100 20 10
HOBART OK 13 16 2 12 / 90 70 0 0
WICHITA FALLS TX 19 23 8 15 / 100 70 0 10
GAGE OK 9 13 -3 14 / 80 60 10 10
PONCA CITY OK 15 19 1 13 / 100 100 20 10
DURANT OK 28 30 12 17 / 100 100 20 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST TUESDAY FOR OKZ008-012-013-
018>020-024>026-029-030.

WINTER STORM WARNING UNTIL 6 PM CST TUESDAY FOR OKZ004>007-
009>011-014>017-021>023-027-028-031>047-050-051.

WIND CHILL WARNING FROM 6 PM TUESDAY TO NOON CST WEDNESDAY FOR
OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY UNTIL 6 PM CST TUESDAY FOR OKZ048-052.

TX...WINTER STORM WARNING UNTIL 6 PM CST TUESDAY FOR TXZ083>090.

&&

$$

32/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
425 AM CST TUE FEB 1 2011

.DISCUSSION...
SNOW IS THE DOMINANT PRECIP TYPE EARLY THIS MORNING WITH
SLEET AND SOME FREEZING RAIN LIMITED TO SOUTHEAST 1/4 OF
FA. ATOKA AND DURANT ARE JUST BELOW FREEZING SO SOME ICE
ACCUMULATION LIKELY BEFORE PRECIP CHANGES TO SLEET AND
SNOW. IMPRESSIVE SNOWFALL RATES HAVE BEEN RECEIVED WITHIN THE
PAST HOUR (2 TO 3 INCHES) WHICH COINCIDES WITH SEVERAL LIGHTNING
STRIKES POTTAWATOMIE COUNTY/GRADY. WHITEOUT CONDITIONS WILL OCCUR
WITHIN ENHANCED AREAS OF PRECIPITATION MAKING TRAVEL VERY
TREACHEROUS AT TIMES. INCREASED SNOWFALL AMOUNTS FARTHER SOUTH
INTO PARTS OF NORTH TEXAS SOUTH CENTRAL OKLAHOMA... BUT THIS AREA
SHOULD SEE PRECIP END FIRST AS TROUGH LIFTS NORTHEAST BY18-20Z.


SUSTAINED WINDS HAVE BEEN IN THE 25 TO 30 RANGE...ESPECIALLY
ACROSS NORTHERN OKLAHOMA BUT A GENERALLY INCREASE WILL LIKELY
OCCUR DURING THE MORNING AS THE SURFACE LOW DEEPENS AS IT MOVES
NORTHEAST INTO ARKATEX REGION. FREQUENT GUSTS TO 40 HAVE ALSO
BEEN SEEN ACROSS WESTERN PARTS OF THE STATE.

AS SYSTEM MOVES EAST OF THE AREA LATE TODAY...CONSIDERABLE BLOWING
AND DRIFTING OF SNOW WILL OCCUR AS WINDS WILL REMAIN STRONG.
AS WINTER STORM/BLIZZARD WARNINGS ARE CANCELLED/EXPIRE WILL LIKELY
NEED TO PLACE MANY AREAS IN A WIND CHILL ADVISORY TONIGHT INTO WEDNESDAY.

COLD WILL BE THE STORY THROUGH THE END OF THE WEEK AS THE COLD SURFACE
HIGH SETTLES OVER THE SOUTHERN PLAINS BY THURSDAY MORNING. WITH
SUBSTANTIAL SNOW COVER MANY AREAS WILL SEE SUB-ZERO TEMPS...ESPECIALLY
ACROSS NORTHERN HALF OF FA.


SECOND TROUGH WILL MOVE ACROSS THE AREA FRIDAY INTO FRIDAY NIGHT
BUT PRECIP CHANCES WILL BE MINIMAL WITH THIS FEATURE. TEMPERATURES
WILL WARM GOING INTO THE WEEKEND WITH SOUTHERLY WINDS BUT ANOTHER
BLAST OF COLD AIR SEEMS POSSIBLE SUNDAY INTO SUNDAY NIGHT.




&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 13 3 12 2 / 100 20 10 10
HOBART OK 13 2 12 0 / 70 0 0 10
WICHITA FALLS TX 19 8 15 5 / 70 0 10 10
GAGE OK 13 -4 14 -7 / 60 10 10 10
PONCA CITY OK 15 -3 13 -6 / 100 20 10 10
DURANT OK 23 9 17 9 / 100 20 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
018>020-024>026-029-030.

WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
009>011-014>017-021>023-027-028-031>047-050-051.

WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY
FOR OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
556 AM CST TUE FEB 1 2011

.AVIATION...
PRECIP TYPE AT ALL TAF SITES WILL BE SNOW AND BLOWING
SNOW. BACK EDGE OF PERSISTENT PRECIPITATION HAS REACH
FAR WESTERN NORTH TEXAS AND THIS WILL CONTINUE INTO
SOUTHERN AND CENTRAL OKLAHOMA THIS MORNING. VLIFR TO IFR
CONDITIONS SHOULD IMPROVE MOST/ALL TAF SITES DURING THE
NEXT 3 TO 6 HOURS. STRONG NORTH WINDS WILL CREATE
CONSIDERABLE BLSN SO WILL LEAVE IN SOME RESTRICTION TO
VISIBILITY INTO THE AFTERNOON/EVENING.


&&

.PREV DISCUSSION... /ISSUED 425 AM CST TUE FEB 1 2011/

DISCUSSION...
SNOW IS THE DOMINANT PRECIP TYPE EARLY THIS MORNING WITH
SLEET AND SOME FREEZING RAIN LIMITED TO SOUTHEAST 1/4 OF
FA. ATOKA AND DURANT ARE JUST BELOW FREEZING SO SOME ICE
ACCUMULATION LIKELY BEFORE PRECIP CHANGES TO SLEET AND
SNOW. IMPRESSIVE SNOWFALL RATES HAVE BEEN RECEIVED WITHIN THE
PAST HOUR (2 TO 3 INCHES) WHICH COINCIDES WITH SEVERAL LIGHTNING
STRIKES POTTAWATOMIE COUNTY/GRADY. WHITEOUT CONDITIONS WILL OCCUR
WITHIN ENHANCED AREAS OF PRECIPITATION MAKING TRAVEL VERY
TREACHEROUS AT TIMES. INCREASED SNOWFALL AMOUNTS FARTHER SOUTH
INTO PARTS OF NORTH TEXAS SOUTH CENTRAL OKLAHOMA... BUT THIS AREA
SHOULD SEE PRECIP END FIRST AS TROUGH LIFTS NORTHEAST BY18-20Z.

SUSTAINED WINDS HAVE BEEN IN THE 25 TO 30 RANGE...ESPECIALLY
ACROSS NORTHERN OKLAHOMA BUT A GENERALLY INCREASE WILL LIKELY
OCCUR DURING THE MORNING AS THE SURFACE LOW DEEPENS AS IT MOVES
NORTHEAST INTO ARKATEX REGION. FREQUENT GUSTS TO 40 HAVE ALSO
BEEN SEEN ACROSS WESTERN PARTS OF THE STATE.

AS SYSTEM MOVES EAST OF THE AREA LATE TODAY...CONSIDERABLE BLOWING
AND DRIFTING OF SNOW WILL OCCUR AS WINDS WILL REMAIN STRONG.
AS WINTER STORM/BLIZZARD WARNINGS ARE CANCELLED/EXPIRE WILL LIKELY
NEED TO PLACE MANY AREAS IN A WIND CHILL ADVISORY TONIGHT INTO WEDNESDAY.

COLD WILL BE THE STORY THROUGH THE END OF THE WEEK AS THE COLD SURFACE
HIGH SETTLES OVER THE SOUTHERN PLAINS BY THURSDAY MORNING. WITH
SUBSTANTIAL SNOW COVER MANY AREAS WILL SEE SUB-ZERO TEMPS...ESPECIALLY
ACROSS NORTHERN HALF OF FA.

SECOND TROUGH WILL MOVE ACROSS THE AREA FRIDAY INTO FRIDAY NIGHT
BUT PRECIP CHANCES WILL BE MINIMAL WITH THIS FEATURE. TEMPERATURES
WILL WARM GOING INTO THE WEEKEND WITH SOUTHERLY WINDS BUT ANOTHER
BLAST OF COLD AIR SEEMS POSSIBLE SUNDAY INTO SUNDAY NIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 13 3 12 2 / 100 20 10 10
HOBART OK 13 2 12 0 / 70 0 0 10
WICHITA FALLS TX 19 8 15 5 / 70 0 10 10
GAGE OK 13 -4 14 -7 / 60 10 10 10
PONCA CITY OK 15 -3 13 -6 / 100 20 10 10
DURANT OK 23 9 17 9 / 100 20 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
018>020-024>026-029-030.

WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
009>011-014>017-021>023-027-028-031>047-050-051.

WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY
FOR OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

01/01/01

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1047 AM CST TUE FEB 1 2011

.UPDATE...
...LIFE THREATENING WINTER STORM WILL CONTINUE THROUGH TODAY...

GETTING MORE REPORTS OF 8 INCHES OR MORE OF OBSERVED SNOW DEPTH IN
CENTRAL AND NORTH CENTRAL OKLAHOMA. RADAR AND SATELLITE TRENDS
SHOW PERSISTENT SNOWFALL IN NORTHERN OKLAHOMA...AND BANDS OF
MODERATE SNOWFALL CONTINUE TO FORM IN CENTRAL OKLAHOMA BEFORE
MERGING WITH THE AREA TO THE NORTH. OVERALL...WE WILL SEE A SLOW
EASTWARD TRANSLATION OF THE FALLING SNOW...BUT RUC 500 MB FORECAST
INDICATES LIFTING ASSOCIATED WITH THE UPPER LOW CIRCULATION...TO
CONTINUE THROUGH ABOUT 2 PM IN OKC METRO AREA...AND EVEN LATER
INTO THE AFTERNOON NORTHEAST OF OKC. THEREFORE...ADDITIONAL SNOW
ACCUMULATION ONE TO FOUR INCHES IS LIKELY.

IT IS VERY IMPORTANT TO NOTE...HOWEVER...THAT REGARDLESS OF WHERE
SNOW IS FALLING... /IT IS EXTREMELY DANGEROUS TO BE OUTSIDE
ANYWHERE IN OKLAHOMA AND WESTERN NORTH TEXAS TODAY/. WINDS WERE
GUSTING 40 TO 50 MPH... AND LOCALLY HIGHER IN FAVORED TERRAIN.
WIND CHILL TEMPERATURES WILL REMAIN AT 10 TO 20 BELOW ZERO FOR THE
NEXT 24 HOURS. PEOPLE TRYING TO TRAVEL...AND BECOMING STRANDED...
MAY SUFFER HYPOTHERMIA VERY QUICKLY IF EXPOSED TO THE ELEMENTS.
BLOWING SNOW WILL REDUCE VISIBILITY BELOW 1 MILE AT TIMES... EVEN
WHEN NEW SNOW IS NOT FALLING.

WE WILL KEEP THE BLIZZARD AND WINTER STORM HEADLINES IN PLACE
THROUGH THE AFTERNOON...AND WILL THEN PLAN TO TRANSITION TOWARD
WIND CHILL ADVISORIES AND WARNINGS AS THE UPPER LEVEL STORM AND
FALLING SNOW DEPART TOWARD THE EAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 12 3 12 2 / 100 20 10 10
HOBART OK 12 2 12 0 / 40 0 0 10
WICHITA FALLS TX 16 8 15 5 / 40 0 10 10
GAGE OK 8 -4 14 -7 / 40 10 10 10
PONCA CITY OK 11 -3 13 -6 / 100 20 10 10
DURANT OK 23 9 17 9 / 40 20 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
018>020-024>026-029-030.

WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
009>011-014>017-021>023-027-028-031>047-050-051.

WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY
FOR OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

24/22



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CST TUE FEB 1 2011

.AVIATION...UPPER LOW TRACKING WEST TO EAST ACROSS OKLAHOMA. BANDS
OF LIGHT TO MODERATE SNOW WILL FORM NEAR AND NORTH OF THE LOW
TRACK...AFFECTING KOUN TO KOKC...AND EXPANDING IN COVERAGE TOWARD
KPNC...THROUGH MID AFTERNOON. THE WORST OF THE FALLING
SNOW...HOWEVER...HAD ENDED. WINDS AROUND 30 GUSTING 40-45 KNOTS
WILL MAINTAIN MVFR TO IFR VISIBILITY THROUGH 21-22 Z... THEN
EXPECT DECREASING WIND SPEEDS AND LESSER REDUCTION TO VISIBILITY.
BROKEN IFR CEILINGS WILL RAISE TO MVFR OR VFR BY EVENING...WITH
FAIRLY STEADY CONDITIONS THEREAFTER.

&&

.PREV DISCUSSION... /ISSUED 1047 AM CST TUE FEB 1 2011/

UPDATE...
..LIFE THREATENING WINTER STORM WILL CONTINUE THROUGH TODAY...

GETTING MORE REPORTS OF 8 INCHES OR MORE OF OBSERVED SNOW DEPTH IN
CENTRAL AND NORTH CENTRAL OKLAHOMA. RADAR AND SATELLITE TRENDS
SHOW PERSISTENT SNOWFALL IN NORTHERN OKLAHOMA...AND BANDS OF
MODERATE SNOWFALL CONTINUE TO FORM IN CENTRAL OKLAHOMA BEFORE
MERGING WITH THE AREA TO THE NORTH. OVERALL...WE WILL SEE A SLOW
EASTWARD TRANSLATION OF THE FALLING SNOW...BUT RUC 500 MB FORECAST
INDICATES LIFTING ASSOCIATED WITH THE UPPER LOW CIRCULATION...TO
CONTINUE THROUGH ABOUT 2 PM IN OKC METRO AREA...AND EVEN LATER
INTO THE AFTERNOON NORTHEAST OF OKC. THEREFORE...ADDITIONAL SNOW
ACCUMULATION ONE TO FOUR INCHES IS LIKELY.

IT IS VERY IMPORTANT TO NOTE...HOWEVER...THAT REGARDLESS OF WHERE
SNOW IS FALLING... /IT IS EXTREMELY DANGEROUS TO BE OUTSIDE
ANYWHERE IN OKLAHOMA AND WESTERN NORTH TEXAS TODAY/. WINDS WERE
GUSTING 40 TO 50 MPH... AND LOCALLY HIGHER IN FAVORED TERRAIN.
WIND CHILL TEMPERATURES WILL REMAIN AT 10 TO 20 BELOW ZERO FOR THE
NEXT 24 HOURS. PEOPLE TRYING TO TRAVEL...AND BECOMING STRANDED...
MAY SUFFER HYPOTHERMIA VERY QUICKLY IF EXPOSED TO THE ELEMENTS.
BLOWING SNOW WILL REDUCE VISIBILITY BELOW 1 MILE AT TIMES... EVEN
WHEN NEW SNOW IS NOT FALLING.

WE WILL KEEP THE BLIZZARD AND WINTER STORM HEADLINES IN PLACE
THROUGH THE AFTERNOON...AND WILL THEN PLAN TO TRANSITION TOWARD
WIND CHILL ADVISORIES AND WARNINGS AS THE UPPER LEVEL STORM AND
FALLING SNOW DEPART TOWARD THE EAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 12 3 12 2 / 100 20 10 10
HOBART OK 12 2 12 0 / 40 0 0 10
WICHITA FALLS TX 16 8 15 5 / 40 0 10 10
GAGE OK 8 -4 14 -7 / 40 10 10 10
PONCA CITY OK 11 -3 13 -6 / 100 20 10 10
DURANT OK 23 9 17 9 / 40 20 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...BLIZZARD WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ008-012-013-
018>020-024>026-029-030.

WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR OKZ004>007-
009>011-014>017-021>023-027-028-031>047-050-051.

WIND CHILL WARNING FROM 6 PM THIS EVENING TO NOON CST WEDNESDAY
FOR OKZ004-005-009-010-014.

WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR OKZ048-
052.

TX...WINTER STORM WARNING UNTIL 6 PM CST THIS EVENING FOR TXZ083>090.

&&

$$

24/22/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
349 PM CST TUE FEB 1 2011

.DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS.
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND
WARNINGS THAT GO THROUGH THURSDAY MORNING.

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 8 0 10 -4 / 100 10 10 0
HOBART OK 9 1 11 -3 / 40 0 10 0
WICHITA FALLS TX 15 6 18 1 / 40 0 10 10
GAGE OK 6 -4 15 -7 / 40 0 0 0
PONCA CITY OK 10 -2 11 -8 / 100 10 0 0
DURANT OK 14 5 15 2 / 40 0 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
022>048-050>052.

WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR
OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

24/22

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
538 PM CST TUE FEB 1 2011

.AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

&&

.PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS.
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND
WARNINGS THAT GO THROUGH THURSDAY MORNING.

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 0 10 -4 18 / 10 10 0 10
HOBART OK 1 11 -3 23 / 0 10 0 0
WICHITA FALLS TX 6 18 1 23 / 0 10 10 10
GAGE OK -4 15 -7 30 / 0 0 0 0
PONCA CITY OK -2 11 -8 13 / 10 0 0 10
DURANT OK 5 15 2 19 / 0 10 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
022>048-050>052.

WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR
OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

25/23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
911 PM CST TUE FEB 1 2011

.DISCUSSION...
AN AREA OF CLOUDS AND LIGHT SNOW OVER WESTERN TEXAS MAY MOVE INTO
OUR FORECAST AREA OVERNIGHT... SUPPORTING THE MENTION OF FLURRIES
IN OUR CURRENT FORECAST. WIND CHILLS WILL REMAIN NEARLY STEADY FOR
THE REST OF THE NIGHT... AS TEMPERATURES FALL SLOWLY AND WIND
SPEEDS ALSO DROP OFF EVER SO SLOWLY.

NO CHANGES ARE PLANNED FOR THE OVERNIGHT FORECAST AT THIS TIME.

&&

.PREV DISCUSSION... /ISSUED 538 PM CST TUE FEB 1 2011/

AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS.
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND
WARNINGS THAT GO THROUGH THURSDAY MORNING.

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 0 10 -4 18 / 10 10 0 10
HOBART OK 1 11 -3 23 / 0 10 0 0
WICHITA FALLS TX 6 18 1 23 / 0 10 10 10
GAGE OK -4 15 -7 30 / 0 0 0 0
PONCA CITY OK -2 11 -8 13 / 10 0 0 10
DURANT OK 5 15 2 19 / 0 10 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
022>048-050>052.

WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR
OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

23/23

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1144 PM CST TUE FEB 1 2011

.AVIATION...
ONCE AIRPORTS REOPEN... PRESUMABLY DURING THE DAY TOMORROW...
CONDITIONS SHOULD BE MUCH IMPROVED. OTHER THAN PERHAPS A FEW
EARLY MORNING FLURRIES... WEATHER CONDITIONS SHOULD BE VFR OR
PERHAPS MVFR... AND WINDS WILL BE SOMEWHAT LESS STRONG.
VISIBILITY RESTRICTIONS... OUTSIDE FLURRIES... SHOULD BE MINIMAL.
AS HIGH PRESSURE CONTINUES TO SETTLE INTO THE SOUTHERN PLAINS
TOMORROW EVENING... EXPECT WINDS TO DIMINISH FURTHER AND CEILINGS
TO RISE WELL INTO VFR LEVELS.

&&

.PREV DISCUSSION... /ISSUED 911 PM CST TUE FEB 1 2011/

DISCUSSION...
AN AREA OF CLOUDS AND LIGHT SNOW OVER WESTERN TEXAS MAY MOVE INTO
OUR FORECAST AREA OVERNIGHT... SUPPORTING THE MENTION OF FLURRIES
IN OUR CURRENT FORECAST. WIND CHILLS WILL REMAIN NEARLY STEADY FOR
THE REST OF THE NIGHT... AS TEMPERATURES FALL SLOWLY AND WIND
SPEEDS ALSO DROP OFF EVER SO SLOWLY.

NO CHANGES ARE PLANNED FOR THE OVERNIGHT FORECAST AT THIS TIME.

PREV DISCUSSION... /ISSUED 538 PM CST TUE FEB 1 2011/

AVIATION...
THE STRONG SURFACE LOW CENTERED OVER WESTERN KENTUCKY WILL
CONTINUE TO PRODUCE MODERATE NORTH WINDS THROUGH THE FORECAST
PERIOD. ONLY SLIGHT DECREASES IN WIND SPEED ARE EXPECTED... BUT
EVEN THIS AMOUNT SHOULD GREATLY DIMINISH THE BLOWING SNOW.
VISIBILITIES SHOULD IMPROVE OVERNIGHT AT SITES THAT STILL HAVE
BLSN. CLOUD FORECASTS ARE HIGHLY UNCERTAIN... DUE TO THE IRREGULAR
DISTRIBUTION OF LOW-LEVEL MOISTURE... AS SHOWN ON SATELLITE
IMAGERY AND SURFACE OBSERVATIONS. A LITTLE REMAINING -SN OVER
NORTH-CENTRAL OKLAHOMA SHOULD EXIT THAT AREA BY 0300Z THIS EVENING.

PREV DISCUSSION... /ISSUED 349 PM CST TUE FEB 1 2011/

DISCUSSION...WE HAVE SEEN THE BENEFITS OF EARLY WARNING TODAY... AS
MOST PEOPLE APPEAR TO HAVE STAYED HOME DURING AN EXTREMELY DANGEROUS
COMBINATION OF COLD AND SNOW. THE WORST OF THE SNOWFALL HAD ENDED AS
OF MID AFTERNOON...WITH ONLY LIGHT SNOW REMAINING AND DWINDLING OVER
NORTHERN OKLAHOMA. IT IS IMPORTANT TO EMPHASIZE...HOWEVER...THAT
DANGEROUS OUTDOOR CONDITIONS ARE HERE TO STAY FOR AN EXTENDED TIME.

THE OKLAHOMA CLIMATOLOGICAL SURVEY TELLS US THAT EARLY THIS MORNING
THE OKLAHOMA MESONET AT BOISE CITY SET A RECORD FOR THAT OBSERVING
NETWORK...WITH A WIND CHILL TEMPERATURE OF 36 BELOW ZERO. EVEN THIS
AFTERNOON...WIND CHILLS ARE COMMONLY AROUND 10 BELOW FROM CENTRAL
OKLAHOMA NORTH AND WESTWARD. ALTHOUGH THE EXCESSIVE WIND SPEEDS AND
GUSTS WILL DIMINISH WHEN LOW PRESSURE PULLS AWAY TO OUR EAST THIS
EVENING...BRISK WINDS OF 15 TO 25 MPH WILL CONTINUE FOR AN EXTENDED
TIME...AS A LARGE ARCTIC HIGH BUILDS DOWN FROM THE NORTHERN PLAINS.
THIS IS AN EXCEPTIONAL ARCTIC OUTBREAK FOR OUR AREA...AND THE
EXTREME COLD WILL PERSIST THROUGH THURSDAY. WE HAVE REPLACED THE
WINTER STORM AND BLIZZARD WARNINGS WITH WIND CHILL ADVISORIES AND
WARNINGS THAT GO THROUGH THURSDAY MORNING.

WITH THE BRISK WINDS...ADVECTION AND MIXING WILL BE THE DOMINANT
INFLUENCE ON LOW TEMPERATURES TONIGHT. MANY LOCATIONS WILL SEE AIR
TEMPERATURE DROP JUST BELOW ZERO FAHRENHEIT. IT WILL BE EVEN COLDER
WEDNESDAY NIGHT WHEN THE CENTER OF HIGH PRESSURE ARRIVES OVER THE
FRESH SNOW FIELD. SOME WEAK WARM ADVECTION AT 700 MB WILL PROVIDE A
LITTLE CLOUD COVER AND PERHAPS SNOW FLURRIES IN NORTH TEXAS AND
SOUTHERN OKLAHOMA WEDNESDAY AND WEDNESDAY NIGHT...BUT AREAS FARTHER
NORTH SHOULD BE RELATIVELY CLEAR...WITH AMPLE OPPORTUNITY TO RADIATE
AT NIGHT...RESULTING IN LOWS APPROACHING 10 BELOW. WINDS WILL BE
LIGHTER BY THAT TIME.

DOWNSLOPE WARMING WILL TAKE PLACE THURSDAY-FRIDAY...AND ESPECIALLY
SATURDAY WHEN A WARM FRONT LIFTS THROUGH FROM THE WEST. WE MODIFIED
THE GUIDANCE TEMPS BASED ON THE EXISTING SNOW COVER. ONCE WE THAW
OUT FROM THIS CURRENT STORM...ANOTHER ARCTIC FRONT WILL START TO
DOMINATE HEADLINES. THERE IS GOOD MODEL AGREEMENT...WITH AN ARCTIC
HIGH AND LOW WIND CHILL TEMPERATURES BUILDING IN SUNDAY NIGHT AND
MONDAY. THIS SYSTEM WILL NOT BE A MAJOR STORM...BUT THERE APPEARS TO
BE ENOUGH UPPER SUPPORT IN NORTHWEST FLOW...TO RESULT IN A FRONTAL
BAND OF PRECIPITATION CHANGING OVER TO SNOW SUNDAY NIGHT AND MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 0 10 -4 18 / 10 10 0 10
HOBART OK 1 11 -3 23 / 0 10 0 0
WICHITA FALLS TX 6 18 1 23 / 0 10 10 10
GAGE OK -4 15 -7 30 / 0 0 0 0
PONCA CITY OK -2 11 -8 13 / 10 0 0 10
DURANT OK 5 15 2 19 / 0 10 10 10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR OKZ017>020-
022>048-050>052.

WIND CHILL WARNING UNTIL 9 AM CST WEDNESDAY FOR OKZ004>016-021.

WIND CHILL ADVISORY FROM 9 AM WEDNESDAY TO NOON CST THURSDAY FOR
OKZ004>016-021.

TX...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR TXZ083>090.

&&

$$

23/23/23

Hazardous Weather Outlooks (HWO)

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
500 AM CST THU JAN 27 2011

OKZ004>048-050>052-TXZ083>090-271800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
500 AM CST THU JAN 27 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
THE AIRMASS REMAINS TOO DRY AND STABLE FOR THUNDERSTORM DEVELOPMENT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST FRIDAY JAN 28.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...0 PERCENT.

OTHER HAZARDOUS WEATHER...
ALTHOUGH WESTERLY WINDS ARE NOT EXPECTED TO BE VERY STRONG...WARM
TEMPERATURES AND VERY DRY AIR WILL COMBINE TO ELEVATE THE WILDFIRE
CONCERNS THIS AFTERNOON. OUTDOOR BURNING IS DISCOURAGED. BURN BANS
ARE IN EFFECT ACROSS MUCH OF WESTERN NORTH TEXAS AND CENTRAL
OKLAHOMA.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
WARM AND DRY CONDITIONS AGAIN ON FRIDAY WILL ELEVATE THE WILDFIRE
POTENTIAL ACROSS MOST OF THE REGION. HOWEVER...WINDS ON FRIDAY ARE
STILL FORECAST TO BE GENERALLY LIGHT. ANOTHER WARM DAY IS EXPECTED
SATURDAY ACROSS SOUTHERN OKLAHOMA AND NORTH TEXAS...BUT THERE WILL
ONCE AGAIN BE LIGHT WIND AND MOISTURE WILL BEGIN TO INCREASE. A COLD
FRONT WILL TRY TO MOVE ACROSS NORTHERN INTO CENTRAL OKLAHOMA
SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS THERE.

MUCH COLDER AIR WILL MOVE INTO THE REGION SUNDAY THROUGH MUCH OF
NEXT WEEK. THERE IS A CHANCE FOR A LIGHT WINTRY MIX ON MONDAY...WITH
HIGHER CHANCES FOR ACCUMULATING SNOW AND ICE MONDAY NIGHT THROUGH
TUESDAY NIGHT. THE INTRUSION OF ARCTIC AIR WILL ALSO PRODUCE VERY
LOW WIND CHILL VALUES. STAY TUNED FOR LATER FORECASTS AS THIS WINTER
WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.

$$

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CST THU JAN 27 2011

OKZ004>048-050>052-TXZ083>090-281200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1145 AM CST THU JAN 27 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THROUGH TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
THE AIRMASS REMAINS TOO DRY AND STABLE FOR THUNDERSTORM DEVELOPMENT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST FRIDAY JAN 28.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...0 PERCENT.

OTHER HAZARDOUS WEATHER...
ALTHOUGH WESTERLY WINDS ARE NOT EXPECTED TO BE VERY STRONG...WARM
TEMPERATURES AND VERY DRY AIR WILL COMBINE TO ELEVATE THE WILDFIRE
CONCERNS THIS AFTERNOON. OUTDOOR BURNING IS DISCOURAGED. BURN BANS
ARE IN EFFECT ACROSS MUCH OF WESTERN NORTH TEXAS AND CENTRAL
OKLAHOMA.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
WARM AND DRY CONDITIONS AGAIN ON FRIDAY WILL ELEVATE THE WILDFIRE
POTENTIAL ACROSS MOST OF THE REGION. HOWEVER...WINDS ON FRIDAY ARE
STILL FORECAST TO BE GENERALLY LIGHT. ANOTHER WARM... BREEZY DAY IS
EXPECTED SATURDAY ACROSS MUCH OF OKLAHOMA AND NORTH TEXAS. A COLD
FRONT WILL TRY TO MOVE ACROSS NORTHERN OKLAHOMA SATURDAY...WHICH
WILL HELP ALLEVIATE THE WILDFIRE CONCERNS THERE.

MUCH COLDER AIR WILL MOVE INTO THE REGION SUNDAY THROUGH MUCH OF
NEXT WEEK. THERE IS A CHANCE FOR A LIGHT WINTRY MIX IN NORTHERN
OKLAHOMA ON MONDAY...WITH HIGHER CHANCES FOR ACCUMULATING SNOW AND
ICE ACROSS A LARGER PART OF OKLAHOMA AND NORTH TEXAS MONDAY NIGHT
THROUGH TUESDAY NIGHT. THE INTRUSION OF ARCTIC AIR WILL ALSO PRODUCE
VERY LOW WIND CHILL VALUES. STAY TUNED FOR LATER FORECASTS AS THIS
WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
FRIDAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
403 AM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-281800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
403 AM CST FRI JAN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A DRY AND AND STABLE AIRMASS WILL REMAIN IN PLACE THROUGH
TONIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SATURDAY JAN 29.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...0 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY WARM AND DRY CONDITIONS WILL ELEVATE THE WILDFIRE POTENTIAL
ACROSS MOST OF THE REGION TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
ANOTHER WARM DAY IS EXPECTED SATURDAY WHICH WILL ELEVATE THE
WILDFIRE POTENTIAL. A COLD FRONT WILL TRY TO MOVE ACROSS NORTHERN
OKLAHOMA SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS
THERE.

COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA. MOST OF THE
PRECIPITATION WITH THIS SYSTEM WILL FALL AS RAIN. ANOTHER SYSTEM
WILL BEGIN TO IMPACT THE AREA MONDAY INTO TUESDAY. AS COLDER AIR
DEEPENS...THE CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY.

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE
BEST OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL. AREAS
TO THE SOUTH AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN
AND SLEET...WITH SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY
INTO WEDNESDAY. SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO
POSSIBLE. WITH WARM WEATHER THE NEXT FEW DAYS...NOW IS
THE TIME TO PREPARE FOR WINTER WEATHER AND ITS IMPACTS. STRONG
NORTHERLY WINDS ARE ALSO POSSIBLE WITH THIS SYSTEM WHICH WILL
PRODUCE VERY LOW WIND CHILL VALUES TUESDAY INTO WEDNESDAY. STAY
TUNED FOR LATER FORECASTS AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1257 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1257 PM CST FRI JAN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A DRY AND AND STABLE AIRMASS WILL REMAIN IN PLACE THROUGH
TONIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SATURDAY JAN 29.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...0 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY WARM AND DRY CONDITIONS WILL ELEVATE THE WILDFIRE POTENTIAL
ACROSS MOST OF THE REGION TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
ANOTHER WARM DAY IS EXPECTED SATURDAY WHICH WILL ELEVATE THE
WILDFIRE POTENTIAL. A COLD FRONT WILL TRY TO MOVE ACROSS NORTHERN
OKLAHOMA SATURDAY...WHICH WILL HELP ALLEVIATE THE WILDFIRE CONCERNS
THERE.

COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA. MOST OF THE
PRECIPITATION WITH THIS SYSTEM WILL FALL AS RAIN. ANOTHER SYSTEM
WILL BEGIN TO IMPACT THE AREA MONDAY INTO TUESDAY. AS COLDER AIR
DEEPENS...THE CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY.

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE
BEST OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL. AREAS
TO THE SOUTH AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN
AND SLEET...WITH SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY
INTO WEDNESDAY. SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO
POSSIBLE. WITH WARM WEATHER THE NEXT FEW DAYS...NOW IS THE TIME TO
PREPARE FOR WINTER WEATHER AND ITS IMPACTS. STRONG NORTHERLY WINDS
ARE ALSO POSSIBLE WITH THIS SYSTEM WHICH WILL PRODUCE VERY LOW WIND
CHILL VALUES TUESDAY INTO WEDNESDAY. STAY TUNED FOR LATER FORECASTS
AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
SATURDAY JANUARY 29.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
445 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-291800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
445 AM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT.

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TODAY INTO TONIGHT IN ADVANCE
OF A STORM SYSTEM TO THE WEST. AS THE SYSTEM MOVES ACROSS
FAR SOUTHERN OKLAHOMA LATE TONIGHT AND EARLY SUNDAY...INSTABILITY
MAY BECOME SUFFICIENT FOR ISOLATED THUNDERSTORMS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 20 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY WARM AFTERNOON TEMPERATURES WILL COMBINE WITH VERY LOW
HUMIDITY VALUES TO INCREASE THE WILDFIRE POTENTIAL TODAY.
SEVERAL WILDFIRES OCCURRED FRIDAY UNDER SIMILAR WEATHER
CONDITIONS AND SOUTH WINDS WILL BE A LITTLE STRONGER TODAY.
EXERCISE CAUTION TO PREVENT THE START AND SPREAD OF WILDFIRES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY AS A STORM
SYSTEM MOVES ACROSS TEXAS AND FAR SOUTHERN OKLAHOMA. PRECIPITATION
WITH THIS SYSTEM WILL FALL AS RAIN. ANOTHER SYSTEM WILL BEGIN TO
IMPACT THE AREA MONDAY INTO TUESDAY. AS COLDER AIR DEEPENS...THE
CHANCES FOR FROZEN AND FREEZING PRECIPITATION WILL
INCREASE...ESPECIALLY MONDAY NIGHT INTO TUESDAY.

AT THIS TIME...WESTERN AND NORTHERN OKLAHOMA WILL HAVE THE BEST
OPPORTUNITY FOR SIGNIFICANT AMOUNTS OF SNOWFALL. AREAS TO THE SOUTH
AND SOUTHEAST MAY EXPERIENCE MORE FREEZING RAIN AND SLEET...WITH
SOME SNOW AS THE SYSTEM DEPARTS LATE TUESDAY INTO WEDNESDAY.
SIGNIFICANT SLEET AND ICE ACCUMULATIONS ARE ALSO POSSIBLE. WITH
WARM WEATHER THE NEXT FEW DAYS...NOW IS THE TIME TO PREPARE FOR
WINTER WEATHER AND ITS IMPACTS. STRONG NORTHERLY WINDS ARE ALSO
LIKELY WITH THIS SYSTEM. THIS WILL PRODUCE VERY LOW WIND CHILL
VALUES TUESDAY INTO WEDNESDAY ALONG WITH THE POTENTIAL FOR BLOWING
AND DRIFTING OF SNOW. STAY TUNED FOR LATER FORECASTS AS THIS WINTER
WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1158 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1158 AM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT.

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TODAY INTO TONIGHT IN ADVANCE OF A
STORM SYSTEM APPROACHING FROM THE WEST. AS THE SYSTEM MOVES
ACROSS FAR SOUTHERN OKLAHOMA LATE TONIGHT AND EARLY SUNDAY...
INSTABILITY MAY BECOME SUFFICIENT FOR ISOLATED THUNDERSTORMS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...20 PERCENT.

OTHER HAZARDOUS WEATHER...
VERY WARM AFTERNOON TEMPERATURES WILL COMBINE WITH VERY LOW HUMIDITY
VALUES TO INCREASE THE WILDFIRE POTENTIAL THIS AFTERNOON. SEVERAL
WILDFIRES OCCURRED FRIDAY UNDER SIMILAR WEATHER CONDITIONS AND SOUTH
WINDS WILL BE A LITTLE STRONGER TODAY. EXERCISE CAUTION TO PREVENT
THE START AND SPREAD OF WILDFIRES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FILTER IN THE SOUTHERN PLAINS ON SUNDAY WITH EVEN
COLDER AIR MOVING INTO THE AREA ON MONDAY AND TUESDAY. WINTER
PRECIPITATION... INCLUDING THE CHANCE OF SNOW.. FREEZING RAIN AND
SLEET... IS EXPECTED ON MONDAY AND TUESDAY AS ANOTHER STORM SYSTEM
APPROACHES. THE COLD WEATHER WILL LINGER INTO THE MIDDLE OF THE WEEK
WITH MORNING WIND CHILL VALUES IN THE SINGLE DIGITS OR BELOW ZERO ON
WEDNESDAY AND THURSDAY MORNINGS. REFER TO THE LATEST SPECIAL WEATHER
STATEMENT FOR ADDITIONAL DETAILS AND STAY TUNED FOR LATER FORECASTS
AS THIS WINTER WEATHER SITUATION EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
SUNDAY JANUARY 30.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
955 PM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
955 PM CST SAT JAN 29 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST
OKLAHOMA TONIGHT.

DISCUSSION...
MOISTURE WILL SLOWLY INCREASE TONIGHT IN ADVANCE OF A STORM SYSTEM
APPROACHING FROM THE WEST. AS THE SYSTEM MOVES ACROSS FAR SOUTHERN
OKLAHOMA LATE TONIGHT AND EARLY SUNDAY... INSTABILITY MAY BECOME
SUFFICIENT FOR ISOLATED THUNDERSTORMS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST SUNDAY JAN 30.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...20 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
COLDER AIR WILL FLOW IN THE SOUTHERN PLAINS ON SUNDAY... WITH EVEN
COLDER AIR MOVING INTO THE AREA ON MONDAY AND TUESDAY. ANOTHER STORM
SYSTEM WILL ARRIVE MONDAY NIGHT AND TUESDAY... BRINGING A MIX OF
SNOW... FREEZING RAIN... AND SLEET. THE COLD WEATHER WILL LINGER
INTO THE MIDDLE OF THE WEEK WITH MORNING WIND CHILL VALUES IN THE
SINGLE DIGITS OR BELOW ZERO ON WEDNESDAY AND THURSDAY MORNINGS.
REFER TO THE LATEST SPECIAL WEATHER STATEMENT FOR ADDITIONAL DETAILS
AND STAY TUNED FOR LATER FORECASTS AS THIS WINTER WEATHER SITUATION
EVOLVES.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
SUNDAY JANUARY 30.

$$

CMS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
422 AM CST SUN JAN 30 2011

OKZ004>048-050>052-TXZ083>090-301800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
422 AM CST SUN JAN 30 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
AN UPPER LEVEL STORM WILL TRACK ACROSS TEXAS TODAY...WHILE
COLD AIR FILTERS INTO OKLAHOMA BEHIND A COLD FRONT. THERE
IS A SLIGHT CHANCE FOR LIGHT RAIN ACROSS FAR SOUTHEAST
OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED MONDAY THROUGH SATURDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP
MONDAY EVENING INTO TUESDAY AS A STRONG STORM MOVES ACROSS
THE AREA. VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED
WITH THIS STORM SYSTEM. PLEASE REFER TO THE WINTER STORM
WATCH FOR EXPECTED IMPACTS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST SUN JAN 30 2011

OKZ004>048-050>052-TXZ083>090-311200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST SUN JAN 30 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
AN UPPER LEVEL STORM WILL TRACK ACROSS TEXAS TODAY...WHILE
COLD AIR FILTERS INTO OKLAHOMA BEHIND A COLD FRONT. THERE IS A
SLIGHT CHANCE FOR LIGHT RAIN ACROSS FAR SOUTHEAST OKLAHOMA AND
PERHAPS DRIZZLE ELSEWHERE.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS WITH SNOW OR SLEET WILL BE POSSIBLE MONDAY
NIGHT AND TUESDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP MONDAY EVENING
INTO TUESDAY AS A STRONG STORM SYSTEM MOVES ACROSS THE AREA. THIS
WINTER WEATHER WILL LIKELY CREATE TRAVEL PROBLEMS OVER PORTIONS OF
THE AREA. VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED WITH THIS
STORM SYSTEM THROUGH THE MIDDLE OF THE WEEK. PLEASE REFER TO THE
WINTER STORM WATCH FOR EXPECTED IMPACTS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
MONDAY JANUARY 31.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311200-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...OVERNIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
FREEZING DRIZZLE IS POSSIBLE OVER OKLAHOMA... MAINLY FROM NORTH OF
OKLAHOMA CITY TO PONCA CITY. LITTLE OR NO ACCUMULATION OF ICE IS
EXPECTED OVERNIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY JAN 31.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS WITH SNOW OR SLEET WILL BE POSSIBLE MONDAY
NIGHT AND TUESDAY.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET...AND SOME FREEZING RAIN WILL DEVELOP MONDAY EVENING
INTO TUESDAY AS A STRONG STORM SYSTEM MOVES ACROSS THE AREA. THIS
WINTER WEATHER WILL LIKELY CREATE TRAVEL PROBLEMS OVER PORTIONS OF
THE AREA. VERY COLD WIND CHILL VALUES CAN ALSO BE EXPECTED WITH THIS
STORM SYSTEM THROUGH THE MIDDLE OF THE WEEK. PLEASE REFER TO THE
WINTER STORM WATCH FOR EXPECTED IMPACTS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
MONDAY JANUARY 31.

$$

CMS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
435 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
435 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA
LATE TONIGHT.

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE
WEST THROUGH TONIGHT. PRECIPITATION IS EXPECTED TO START
IN THE FORM OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTH TEXAS
THIS EVENING. A RUMBLE OR TWO OF THUNDER IS POSSIBLE WITH SOME OF
THE PRECIPITATION...ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND
OVERNIGHT. PLEASE SEE THE LATEST WINTER STORM WARNINGS AND ADVISORIES
FOR DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
A RUMBLE OR TWO OF THUNDER IS POSSIBLE WITH SOME OF THE
PRECIPITATION TUESDAY MORNING. OTHERWISE THUNDERSTORMS
ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES...STRONG WINDS...AND
SNOW. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND
ADVISORIES FOR DETAILS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.
$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
840 AM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-311800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
840 AM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA AND
NORTHERN TEXAS LATE TONIGHT. SEVERE STORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE
WEST THROUGH TONIGHT. PRECIPITATION IS EXPECTED TO START IN THE FORM
OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTHERN TEXAS THIS EVENING AND
CHANGE TO FREEZING RAIN AND SLEET... AND THEN SNOW... BY MORNING.
ELEVATED THUNDERSTORMS MAY DEVELOP TONIGHT WITH SOME OF THE
PRECIPITATION... ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...10 PERCENT

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND
OVERNIGHT. HEAVY SNOW AND NEAR-BLIZZARD CONDITIONS MAY EXIST IN SOME
AREAS BY DAYBREAK TUESDAY MORNING. PLEASE SEE THE LATEST WINTER
STORM WARNINGS AND ADVISORIES FOR DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THUNDER WILL BE POSSIBLE WITH THE SNOW AND SLEET TUESDAY MORNING.
OTHERWISE THUNDERSTORMS ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A MAJOR WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES... STRONG WINDS... AND
SNOW. BITTER COLD WILL PERSIST WELL INTO THE LATTER PART OF THE
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND
ADVISORIES FOR DETAILS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST MON JAN 31 2011

OKZ004>048-050>052-TXZ083>090-011000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST MON JAN 31 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHERN OKLAHOMA AND
NORTHERN TEXAS LATE TONIGHT. SEVERE STORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG STORM SYSTEM WILL APPROACH THE SOUTHERN PLAINS FROM THE
WEST THROUGH TONIGHT. PRECIPITATION IS EXPECTED TO START IN THE FORM
OF RAIN ACROSS SOUTHERN OKLAHOMA AND NORTHERN TEXAS THIS EVENING AND
CHANGE TO FREEZING RAIN AND SLEET... AND THEN SNOW... BY MORNING.
ELEVATED THUNDERSTORMS MAY DEVELOP TONIGHT WITH SOME OF THE
PRECIPITATION... ESPECIALLY ACROSS SOUTHEAST OKLAHOMA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST TUESDAY FEB 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...10 PERCENT

OTHER HAZARDOUS WEATHER...
SNOW...SLEET AND FREEZING RAIN WILL BEGIN TO FALL THIS EVENING AND
OVERNIGHT. HEAVY SNOW AND BLIZZARD CONDITIONS MAY EXIST IN SOME
AREAS BY DAYBREAK TUESDAY MORNING. PLEASE SEE THE LATEST WINTER
STORM WARNINGS AND ADVISORIES FOR DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

THUNDERSTORM OUTLOOK...
THUNDER WILL BE POSSIBLE WITH THE SNOW AND SLEET TUESDAY MORNING.
OTHERWISE THUNDERSTORMS ARE NOT EXPECTED THROUGH SUNDAY.

OTHER HAZARDOUS WEATHER...
A MAJOR WINTER STORM WILL CONTINUE TO IMPACT THE AREA ON TUESDAY WITH
THE COMBINATION OF VERY COLD TEMPERATURES... STRONG WINDS... AND
SNOW. BITTER COLD WILL PERSIST WELL INTO THE LATTER PART OF THE
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND
ADVISORIES FOR DETAILS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
TUESDAY.

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST TUE FEB 1 2011

OKZ004>048-050>052-TXZ083>090-011800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
455 AM CST TUE FEB 1 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS SOUTH CENTRAL AND
SOUTHEAST OKLAHOMA EARLY THIS MORNING. SEVERE STORMS ARE NOT
EXPECTED.

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO MOVE THROUGH THE SOUTHERN
PLAINS THIS MORNING GENERATING SNOW... OCCASIONALLY MIXED WITH
SLEET... EARLY THIS MORNING IN SOUTHEAST OKLAHOMA. ISOLATED ELEVATED
THUNDERSTORMS WILL BE POSSIBLE FOR A FEW HOURS THIS MORNING. THE
STORMS WILL PRODUCE LOCALLY HEAVY AMOUNTS OF SNOW AND SLEET.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...30 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...5 PERCENT

OTHER HAZARDOUS WEATHER...
SNOW... OCCASIONALLY MIXED WITH SLEET WILL CONTINUE THROUGH THE
MORNING... BEFORE DIMINISHING THIS AFTERNOON. STRONG WINDS AND COLD
TEMPERATURES WILL RESULT IN SUBZERO WIND CHILLS. HEAVY SNOW AND
BLIZZARD CONDITIONS MAY EXIST IN SOME AREAS. PLEASE SEE THE LATEST
WINTER WEATHER WARNINGS AND ADVISORIES FOR DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED THROUGH MONDAY.

OTHER HAZARDOUS WEATHER...
BITTER COLD TEMPERATURES WILL PERSIST INTO THE LATTER PART OF THE
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND
ADVISORIES FOR DETAILS.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.

$$
CJS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1200 PM CST TUE FEB 1 2011

OKZ004>048-050>052-TXZ083>090-021100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1200 PM CST TUE FEB 1 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO MOVE ACROSS THE SOUTHERN
PLAINS THIS AFTERNOON. THE CHANCE OF THUNDERSTORMS IN THE AREA HAS
DIMINISHED... AS THE HEAVIER SNOW SHIFTS EAST OF THE AREA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
SNOW WILL TAPER OFF THIS AFTERNOON... BUT STRONG WINDS WILL CONTINUE
TO CREATE BLIZZARD OR NEAR-BLIZZARD CONDITIONS IN MANY AREAS FOR THE
REST OF THE DAY. DANGEROUS COLD WILL CONTINUE... WITH WIND CHILLS
REMAINING WELL BELOW ZERO IN MOST AREAS THROUGH TONIGHT. PLEASE
REFER TO THE LATEST WINTER WEATHER WARNINGS AND ADVISORIES FOR
DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THE LATTER PART OF THE
WEEK. PLEASE REFER TO THE LATEST WINTER STORM WARNINGS AND
ADVISORIES FOR DETAILS.

AFTER A BRIEF WARMER PERIOD EARLY THIS WEEKEND...ANOTHER ARCTIC
FRONT WILL ARRIVE LATE SUNDAY...BRINGING ANOTHER ROUND OF VERY LOW
WIND CHILL TEMPERATURES...AND A CHANCE OF WINTRY PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
WEDNESDAY.

$$

24

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
547 PM CST TUE FEB 1 2011

OKZ004>048-050>052-TXZ083>090-021100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
547 PM CST TUE FEB 1 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A STRONG WINTER STORM WILL CONTINUE TO EXIT THE SOUTHERN PLAINS
TONIGHT. THE CHANCE OF THUNDERSTORMS HAS ENDED.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WED FEB 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.

OTHER HAZARDOUS WEATHER...
BLOWING SNOW WILL CONTINUE TO REDUCE VISIBILITIES IN SOME LOCATIONS
ACROSS OKLAHOMA AND WESTERN NORTH TEXAS TONIGHT. DANGEROUS COLD WILL
ALSO CONTINUE... WITH WIND CHILLS REMAINING WELL BELOW ZERO TONIGHT.
PLEASE REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR
DETAILS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO AT LEAST THURSDAY. PLEASE
REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR DETAILS.

AFTER A BRIEF WARMER PERIOD EARLY THIS WEEKEND...ANOTHER ARCTIC
FRONT WILL ARRIVE LATE SUNDAY...BRINGING ANOTHER ROUND OF VERY LOW
WIND CHILL TEMPERATURES...AND A CHANCE OF WINTRY PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
WEDNESDAY.

$$

24/25

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST WED FEB 2 2011

OKZ004>048-050>052-TXZ083>090-021800-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
455 AM CST WED FEB 2 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A COLD... STABLE AIRMASS WILL CONTINUE OVER THE AREA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST THU FEB 3.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...ZERO PERCENT.

OTHER HAZARDOUS WEATHER...
GUSTY NORTH WINDS THIS MORNING MAY CAUSE DRIFTING SNOW ACROSS
PORTIONS OF CENTRAL AND NORTH CENTRAL OKLAHOMA... ESPECIALLY ALONG
ROADWAYS NEAR OPEN FIELDS. VERY COLD TEMPERATURES AND THE BRISK
WINDS WILL CONTINUE TO RESULT IN BELOW ZERO WIND CHILLS. PLEASE
REFER TO THE LATEST WIND CHILL WARNINGS AND ADVISORIES FOR DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THURSDAY.

AFTER A BRIEF PERIOD OF WARMER TEMPERATURES EARLY THIS WEEKEND... AN
ARCTIC FRONT WILL ARRIVE LATE SUNDAY... BRINGING ANOTHER ROUND OF
VERY LOW WIND CHILL TEMPERATURES... AND A CHANCE OF WINTRY
PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT NOON
TODAY.

$$

CJS

HAZARDOUS WEATHER OUTLOOK 
NATIONAL WEATHER SERVICE NORMAN OK
1135 AM CST WED FEB 2 2011

OKZ004>048-050>052-TXZ083>090-031100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1135 AM CST WED FEB 2 2011

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

DISCUSSION...
A COLD... STABLE AIRMASS WILL CONTINUE OVER THE AREA.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST THU FEB 3.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...ZERO PERCENT.

OTHER HAZARDOUS WEATHER...
GUSTY NORTH WINDS TODAY MAY CAUSE DRIFTING SNOW ACROSS
PORTIONS OF CENTRAL AND NORTH CENTRAL OKLAHOMA... ESPECIALLY ALONG
ROADWAYS NEAR OPEN FIELDS. VERY COLD TEMPERATURES AND THE BRISK
WINDS WILL CONTINUE TO RESULT IN BELOW ZERO WIND CHILLS. PLEASE
REFER TO THE LATEST WIND CHILL ADVISORY FOR DETAILS.

WITH SUNSHINE TODAY SOME OF THE SNOW MAY MELT... HOWEVER... WITH
TEMPERATURES WELL BELOW FREEZING TONIGHT THIS LAYER OF WATER MAY
REFREEZE FORMING ICE. SO ROADWAYS MAY REMAIN TREACHEROUS INTO
THURSDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED.

OTHER HAZARDOUS WEATHER...
BITTER COLD CONDITIONS WILL PERSIST INTO THURSDAY.

AFTER A BRIEF PERIOD OF WARMER TEMPERATURES EARLY THIS WEEKEND... AN
ARCTIC FRONT WILL ARRIVE LATE SUNDAY... BRINGING ANOTHER ROUND OF
VERY LOW WIND CHILL TEMPERATURES... AND A CHANCE OF WINTRY
PRECIPITATION.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
THURSDAY.

$$

CJS/MAXWELL

Winter Weather Messages (WSW)

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
346 AM CST SUN JAN 30 2011

OKZ006>008-011>013-015>020-022>032-035-038>042-046-302130-
/O.NEW.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-GRANT-KAY-MAJOR-GARFIELD-NOBLE-DEWEY-CUSTER-BLAINE-
KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-
GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-KIOWA-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...PONCA CITY...
FAIRVIEW...ENID...PERRY...TALOGA...WEATHERFORD...CLINTON...
WATONGA...KINGFISHER...GUTHRIE...STILLWATER...CORDELL...
ANADARKO...YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...
CHICKASHA...PURCELL...NORMAN...MOORE...SHAWNEE...SEMINOLE...
HOLDENVILLE...HOBART...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...ARDMORE
346 AM CST SUN JAN 30 2011

...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
AFTERNOON.

* A STRONG STORM SYSTEM WILL MOVE FROM NORTHERN CALIFORNIA INTO
THE FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE PRECIPITATION
IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: FOUR INCHES OR MORE OF SLEET AND SNOW ARE POSSIBLE
IN THE WATCH AREA. PARTS OF CENTRAL AND NORTH CENTRAL OKLAHOMA
MAY EXPERIENCE THE HEAVIER AMOUNTS OF SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND WILL
CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* THE EXACT TRACK AND IMPACTS FROM THIS WINTER STORM ARE STILL
UNCERTAIN. COUNTIES NOT INCLUDING IN THIS WATCH MAY BE ADDED
LATER OR MAY BE PLACED IN ADVISORIES OR WARNINGS AT A LATER
TIME.

* CONSIDER CHANGING TRAVEL PLANS. MAKE SURE YOU HAVE AN ADEQUATE
SUPPLY OF FOOD...AND NECESSARY MEDICATIONS.


* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.


&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
308 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-310515-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
308 PM CST SUN JAN 30 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM MONDAY TO 6 PM CST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW AND BLOWING AND DRIFTING SNOW... WHICH IS
IN EFFECT FROM 6 PM MONDAY TO 6 PM CST TUESDAY FOR MUCH OF CENTRAL
AND NORTH CENTRAL OKLAHOMA. THE WINTER STORM WATCH IS NO LONGER IN
EFFECT.

THIS IS A PARTICULARLY DANGEROUS WINTER STORM SITUATION... WITH THE
POTENTIAL FOR BLIZZARD OR NEAR-BLIZZARD CONDITIONS ALONG WITH
LIFE-THREATENING WIND CHILLS. TRAVEL IS LIKELY TO BECOME EXTREMELY
DIFFICULT IF NOT IMPOSSIBLE BY TUESDAY MORNING. ALL RESIDENTS IN
CENTRAL AND NORTHERN OKLAHOMA ARE URGED TO TAKE THIS DEVELOPING
WINTER STORM SERIOUSLY AND PLAN FOR THE POSSIBILITY OF
SIGNIFICANT DISRUPTIONS BY LATE MONDAY NIGHT AND TUESDAY MORNING.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN SLEET
AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIME LATE
MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH SUBSTANTIAL
BLOWING AND DRIFTING... BEFORE TAPERING OFF TUESDAY AFTERNOON.

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW
FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING TRAVEL
VERY DIFFICULT OR IMPOSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR-WHITEOUT
CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND HAZARDOUS
AS EARLY AS TUESDAY EVENING... MAKING TRAVEL TREACHEROUS. VERY
COLD CONDITIONS FOLLOWING THE STORM MAY KEEP SOME ROADS FROZEN
AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER CONDITIONS
BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND OTHER
PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY NECESSARY
MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN BE
FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY TUNED TO
NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION FOR THE
LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ004-005-009-010-310515-
/O.NEW.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
308 PM CST SUN JAN 30 2011

...WIND CHILL WATCH IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WATCH...WHICH IS IN EFFECT MONDAY NIGHT THROUGH WEDNESDAY
MORNING FOR NORTHWESTERN OKLAHOMA.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK
TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO WEDNESDAY MORNING.

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND
BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY.
ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER DRIFTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

OKZ014-021-033-034-036-037-044-045-050-TXZ083>090-310515-
/O.EXA.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ROGER MILLS-BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COTTON-JEFFERSON-
LOVE-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEYENNE...ELK CITY...SAYRE...HOLLIS...
MANGUM...ALTUS...FREDERICK...WALTERS...WAURIKA...MARIETTA...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
308 PM CST SUN JAN 30 2011

...WINTER STORM WATCH IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS EXPANDED THE WINTER
STORM WATCH... WHICH IS IN EFFECT FROM MONDAY EVENING THROUGH
TUESDAY AFTERNOON. THE WINTER STORM WATCH NOW INCLUDES MUCH OF
WEST CENTRAL AND SOUTHWESTERN OKLAHOMA AND ALL OF WESTERN NORTH
TEXAS.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE PRECIPITATION
IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OR MORE OF SLEET AND SNOW ARE
POSSIBLE IN THE WATCH AREA... ALONG WITH LIGHT ACCUMULATIONS OF
GLAZE BEFORE THE PRECIPITATION CHANGES TO SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY IMPOSSIBLE
IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH MONDAY.. IT
WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
WEATHER.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&

$$

OKZ006-011-015>017-022-032-035-038-039-041-042-046-310515-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-HUGHES-KIOWA-COMANCHE-
STEPHENS-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...TALOGA...
WEATHERFORD...CLINTON...WATONGA...CORDELL...HOLDENVILLE...
HOBART...LAWTON...DUNCAN...SULPHUR...ADA...ARDMORE
308 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON FOR MUCH OF WESTERN AND SOUTHERN OKLAHOMA.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN MOVE
ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE
PRECIPITATION IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN THE
WATCH AREA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY IMPOSSIBLE
IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH MONDAY.. IT
WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
WEATHER.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&

$$

24/MLB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
415 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-310615-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
415 PM CST SUN JAN 30 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO
6 PM CST TUESDAY...

THIS IS A PARTICULARLY DANGEROUS WINTER STORM SITUATION... WITH
THE POTENTIAL FOR BLIZZARD OR NEAR-BLIZZARD CONDITIONS ALONG WITH
LIFE-THREATENING WIND CHILLS. TRAVEL IS LIKELY TO BECOME EXTREMELY
DIFFICULT IF NOT IMPOSSIBLE BY TUESDAY MORNING. ALL RESIDENTS IN
CENTRAL AND NORTHERN OKLAHOMA ARE URGED TO TAKE THIS DEVELOPING
WINTER STORM SERIOUSLY AND PLAN FOR THE POSSIBILITY OF SIGNIFICANT
DISRUPTIONS BY LATE MONDAY NIGHT AND TUESDAY MORNING.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN
SLEET AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIME
LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH
SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF
TUESDAY AFTERNOON.

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW
FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING
TRAVEL VERY DIFFICULT OR IMPOSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND
NEAR-WHITEOUT CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND HAZARDOUS
AS EARLY AS MONDAY EVENING... MAKING TRAVEL TREACHEROUS. VERY
COLD CONDITIONS FOLLOWING THE STORM MAY KEEP SOME ROADS FROZEN
AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER
CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND
OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY
NECESSARY MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN
BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY
TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ006-011-014>017-021-022-032>039-041-042-044>046-050-TXZ083>090-
310615-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-ROGER MILLS-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-
HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-
MURRAY-PONTOTOC-COTTON-JEFFERSON-CARTER-LOVE-HARDEMAN-FOARD-
WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...CHEYENNE...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...
FREDERICK...LAWTON...DUNCAN...SULPHUR...ADA...WALTERS...WAURIKA...
ARDMORE...MARIETTA...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
415 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN IS EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE
PRECIPITATION IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN
THE WATCH AREA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY
IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH
MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER
PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
WEATHER.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&

$$

OKZ004-005-009-010-310615-
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
415 PM CST SUN JAN 30 2011

...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

A WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK
TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO
WEDNESDAY MORNING.

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND
BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY.
ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER
DRIFTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
958 PM CST SUN JAN 30 2011

OKZ007-008-012-013-018>020-023>031-040-311200-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
958 PM CST SUN JAN 30 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO
6 PM CST TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO 6 PM
CST TUESDAY.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY MONDAY. THIS SYSTEM WILL THEN
MOVE ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: RAIN WILL CHANGE QUICKLY TO A MIX OF FREEZING RAIN
SLEET AND SNOW MONDAY EVENING. SNOW MAY BECOME HEAVY AT TIMES
LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH
SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF
TUESDAY AFTERNOON.

* MAIN IMPACT: A CRIPPLING COMBINATION OF SNOW AND BLOWING SNOW
FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING
TRAVEL VERY DIFFICULT OR IMPOSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR-
WHITEOUT CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL
TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP
SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER
CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND
OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY
NECESSARY MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN
BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY
TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ006-011-014>017-021-022-032>039-041-042-044>046-050-TXZ083>090-
311200-
/O.CON.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-ROGER MILLS-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-
HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-
MURRAY-PONTOTOC-COTTON-JEFFERSON-CARTER-LOVE-HARDEMAN-FOARD-
WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...CHEYENNE...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...
FREDERICK...LAWTON...DUNCAN...SULPHUR...ADA...WALTERS...WAURIKA...
ARDMORE...MARIETTA...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
958 PM CST SUN JAN 30 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON...

A WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY EVENING
THROUGH TUESDAY AFTERNOON.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE
PRECIPITATION IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE POSSIBLE IN
THE WATCH AREA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY
IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH
MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER
PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
WEATHER.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&

$$

OKZ004-005-009-010-311200-
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
958 PM CST SUN JAN 30 2011

...WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING...

A WIND CHILL WATCH REMAINS IN EFFECT FROM MONDAY EVENING THROUGH
WEDNESDAY MORNING.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK
TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO
WEDNESDAY MORNING.

* IMPACTS: IN ADDITION TO LIFE-THREATENING COLD... SNOW AND
BLOWING SNOW ARE LIKELY MONDAY NIGHT INTO EARLY TUESDAY.
ACCUMULATIONS UP TO 4 INCHES ARE POSSIBLE... WITH DEEPER
DRIFTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

&&

$$

CMS

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
417 AM CST MON JAN 31 2011

OKZ006-011-015>017-022-032-035-038-039-041-042-046-311830-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ALFALFA-MAJOR-DEWEY-CUSTER-BLAINE-WASHITA-HUGHES-KIOWA-COMANCHE-
STEPHENS-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...FAIRVIEW...TALOGA...
WEATHERFORD...CLINTON...WATONGA...CORDELL...HOLDENVILLE...
HOBART...LAWTON...DUNCAN...SULPHUR...ADA...ARDMORE
417 AM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...SLEET AND SOME FREEZING RAIN...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY. THIS SYSTEM WILL THEN MOVE
ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY TUESDAY AFTERNOON MOST OF THE
PRECIPITATION IS EXPECTED TO BE VERY LIGHT.

* MAIN IMPACT: 3 TO 6 INCHES OF SLEET AND SNOW ARE LIKELY.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS. VERY COLD TEMPERATURES
FOLLOWING THE STORM MAY MAKE SOME SECONDARY ROADS HAZARDOUS
FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. TRAVEL MAY BECOME NEARLY
IMPOSSIBLE IN SOME AREAS BY TUESDAY MORNING. FROM NOW THROUGH
MONDAY.. IT WILL BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER
PROVISIONS... INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* CONSIDER CHANGING TRAVEL PLANS. TRAVEL IS LIKELY TO BE
DISCOURAGED BY TUESDAY... AND MAY BE RESTRICTED DUE TO THE
WEATHER.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&



PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ007-008-012-013-018>020-023>031-040-311830-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
GRANT-KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CADDO-CANADIAN-
OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
GARVIN-
INCLUDING THE CITIES OF...MEDFORD...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...ANADARKO...YUKON...EL RENO...
MUSTANG...OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...
NORMAN...MOORE...SHAWNEE...SEMINOLE...PAULS VALLEY
417 AM CST MON JAN 31 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY...


* A STRONG STORM SYSTEM WILL MOVE FROM SOUTHERN NEVADA INTO THE
FOUR CORNERS REGION BY MIDDAY. THIS SYSTEM WILL THEN MOVE
ACROSS THE SOUTHERN PLAINS ON TUESDAY.

* TIMING: A MIX OF FREEZING RAIN...SLEET AND SNOW MONDAY EVENING
WILL QUICKLY CHANGE TO ALL SNOW BY MIDNIGHT. THE SNOW MAY BE HEAVY
AT TIMES LATE MONDAY NIGHT INTO TUESDAY MORNING... ALONG WITH
SUBSTANTIAL BLOWING AND DRIFTING... BEFORE TAPERING OFF TUESDAY
AFTERNOON.

* MAIN IMPACT: A COMBINATION OF SNOW AND BLOWING SNOW FROM LATE
MONDAY NIGHT THROUGH TUESDAY MORNING... MAKING TRAVEL VERY
DIFFICULT OR IMPOSSIBLE. SNOWFALL AMOUNTS OF 4 TO 8 INCHES ARE
LIKELY.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR-
WHITEOUT CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL
TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP
SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER
CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND
OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY
NECESSARY MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* STAY UP TO DATE ON THE LATEST WEATHER INFORMATION AS THIS
DANGEROUS EVENT CONTINUES TO UNFOLD. WEATHER INFORMATION CAN
BE FOUND ON THE NORMAN FORECAST OFFICE WEB SITE. ALSO STAY
TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
FOR THE LATEST INFORMATION CONCERNING THIS WEATHER EVENT.

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ014-021-033-034-036-037-044-045-050-TXZ083>090-311830-
/O.UPG.KOUN.WS.A.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
ROGER MILLS-BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COTTON-JEFFERSON-
LOVE-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEYENNE...ELK CITY...SAYRE...HOLLIS...
MANGUM...ALTUS...FREDERICK...WALTERS...WAURIKA...MARIETTA...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...SLEET...AND FREEZING RAIN WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* TIMING: SNOW...SLEET AND SOME FREEZING RAIN ARE EXPECTED TO
DEVELOP BY MONDAY EVENING AND INCREASE IN INTENSITY DURING THE
OVERNIGHT HOURS. BY MIDNIGHT MOST OF THE PRECIPITATION WILL BE
IN THE FORM OF SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE
VERY LIGHT AFTER NOON TUESDAY.

* MAIN IMPACT: 1 TO 4 INCHES OF SLEET AND SNOW ARE POSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE SIGNIFICANT BLOWING AND DRIFTING OF SNOW AND
WILL CREATE POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. FROM NOW THROUGH MONDAY.. IT WILL
BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
INCLUDING ANY NECESSARY MEDICAL SUPPLIES.


* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&


PRECAUTIONARY/PREPAREDNESS ACTIONS...BE CAREFUL IF YOU HAVE TO
TRAVEL. EVEN SMALL AMOUNTS OF ICE AND SNOW CAN MAKE ROADS AND
SIDEWALKS SLICK AND DANGEROUS.

&&

$$

OKZ004-005-009-010-311830-
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.CON.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...
...WIND CHILL WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND SOME SLEET...WHICH IS IN EFFECT FROM
6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WATCH REMAINS
IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY MORNING.

* TIMING: LATE MONDAY NIGHT THROUGH WEDNESDAY.

* WIND CHILL VALUES: FALLING TO BETWEEN -10 AND -15 BY DAYBREAK
TUESDAY... THEN REMAINING IN THE -10 TO -20 RANGE INTO
WEDNESDAY MORNING.

* IMPACTS: SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES POSSIBLE
WITH BITTERLY COLD WIND CHILL VALUES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE LATEST FORECASTS AND INFORMATION.

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

OKZ043-047-048-051-052-311830-
/O.NEW.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
COAL-JOHNSTON-ATOKA-MARSHALL-BRYAN-
INCLUDING THE CITIES OF...COALGATE...TISHOMINGO...ATOKA...
MADILL...DURANT
417 AM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN...SLEET AND SNOW...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY.

* TIMING: RAIN IS EXPECTED TO DEVELOP MONDAY EVENING THEN CHANGE
TO FREEZING RAIN AND SLEET DURING THE OVERNIGHT HOURS. A THIN
LAYER OF ICE IS POSSIBLE BEFORE CHANGING TO MAINLY SLEET. BY
SUNRISE TUESDAY MOST OF THE PRECIPITATION WILL BE IN THE FORM OF
SLEET AND SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE LIGHT
AFTER NOON TUESDAY.

* MAIN IMPACT: 1 TO 3 INCHES OF SLEET AND SNOW ARE POSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE BLOWING AND DRIFTING OF SNOW AND WILL CREATE
POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1204 PM CST MON JAN 31 2011

OKZ004-005-009-010-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.UPG.KOUN.WC.A.0001.110201T0000Z-110202T1800Z/
/O.NEW.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
HARPER-WOODS-ELLIS-WOODWARD-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...
...WIND CHILL WARNING IN EFFECT FROM 6 PM TUESDAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...WIND...AND EXTREME COLD...WHICH IS IN EFFECT
FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WARNING
HAS ALSO BEEN ISSUED. THIS WIND CHILL WARNING IS IN EFFECT FROM 6
PM TUESDAY TO NOON CST WEDNESDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT. THE WIND CHILL WATCH IS NO LONGER IN EFFECT.

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN
CONTINUING THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. BLOWING
SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING BELOW
ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM
TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&

$$

OKZ014-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ROGER MILLS-
INCLUDING THE CITY OF...CHEYENNE
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...
...WIND CHILL WARNING IN EFFECT FROM 6 PM TUESDAY TO NOON CST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR SNOW...WIND...AND EXTREME COLD...WHICH IS IN EFFECT
FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. A WIND CHILL WARNING
HAS ALSO BEEN ISSUED. THIS WIND CHILL WARNING IS IN EFFECT FROM 6
PM TUESDAY TO NOON CST WEDNESDAY. THE WINTER WEATHER ADVISORY IS
NO LONGER IN EFFECT.

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN
CONTINUING THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS. BLOWING
SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING BELOW
ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM TUESDAY
AFTERNOON THROUGH WEDNESDAY MORNING.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF HAZARDOUS TRAVEL CONDITIONS
DEVELOPING BY MONDAY NIGHT. FROM NOW THROUGH MONDAY.. IT WILL
BE A GOOD IDEA TO STOCK UP ON FOOD AND OTHER PROVISIONS...
INCLUDING ANY NECESSARY MEDICAL SUPPLIES.

* WEATHER INFORMATION CAN BE FOUND ON THE NORMAN FORECAST OFFICE
WEB SITE. ALSO STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL
RADIO OR TELEVISION FOR THE LATEST INFORMATION CONCERNING THIS
WEATHER EVENT.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&

$$

OKZ021-033-034-036-037-043>045-047-050-051-TXZ083>090-010215-
/O.UPG.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
/O.EXA.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
BECKHAM-HARMON-GREER-JACKSON-TILLMAN-COAL-COTTON-JEFFERSON-
JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-
BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...ELK CITY...SAYRE...HOLLIS...MANGUM...
ALTUS...FREDERICK...COALGATE...WALTERS...WAURIKA...TISHOMINGO...
MARIETTA...MADILL...QUANAH...CHILLICOTHE...CROWELL...VERNON...
WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...
HOLLIDAY...LAKESIDE CITY...HENRIETTA
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WINTER STORM
WARNING FOR ICE...SNOW...WIND...AND EXTREME COLD...WHICH IS IN
EFFECT FROM 6 PM THIS EVENING TO 6 PM CST TUESDAY. THE WINTER
WEATHER ADVISORY IS NO LONGER IN EFFECT.

* TIMING: FREEZING RAIN AND SLEET FROM LATE EVENING THROUGH EARLY
TUESDAY. SNOW AND BLOWING SNOW ON TUESDAY. WIND CHILL
TEMPERATURES CONTINUALLY FALLING.

* MAIN IMPACT: ONE TENTH TO ONE QUARTER INCH OF GLAZE FROM
FREEZING RAIN...FOLLOWED BY SLEET AND SNOW ACCUMULATIONS OF 3 TO
5 INCHES. STRONG AND GUSTY WINDS WITH CREATING BLOWING SNOW AND
POOR VISIBILITY.

* EXTREME COLD: DANGEROUS WIND CHILL TEMPERATURES RANGING FROM
ZERO TO 15 DEGREES BELOW ZERO BEGINNING EARLY TUESDAY.

* OTHER IMPACTS: ROADS...BRIDGES...AND OVERPASSES WILL BECOME
SLICK AND HAZARDOUS...MAKING TRAVEL TREACHEROUS. SCATTERED POWER
OUTAGES ARE POSSIBLE.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE
NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY

&&


$$

OKZ006>008-011>013-015>020-022>032-035-038>042-046-010215-
/O.CON.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
ALFALFA-GRANT-KAY-MAJOR-GARFIELD-NOBLE-DEWEY-CUSTER-BLAINE-
KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-
GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-KIOWA-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-CARTER-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...PONCA CITY...
FAIRVIEW...ENID...PERRY...TALOGA...WEATHERFORD...CLINTON...
WATONGA...KINGFISHER...GUTHRIE...STILLWATER...CORDELL...
ANADARKO...YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...
CHICKASHA...PURCELL...NORMAN...MOORE...SHAWNEE...SEMINOLE...
HOLDENVILLE...HOBART...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...ARDMORE
1204 PM CST MON JAN 31 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST TUESDAY.

* TIMING: LIGHT PRECIPITATION EARLY TONIGHT...THEN HEAVY WINTRY
PRECIPITATION LATE TONIGHT THROUGH TUESDAY AFTERNOON.

* MAIN IMPACT: INITIALLY LIGHT FREEZING RAIN AND SLEET. FREEZING
RAIN MORE SIGNIFICANT SOUTH OF A LAWTON TO SHAWNEE LINE...WHERE
A TENTH TO QUARTER INCH GLAZE IS POSSIBLE BEFORE CHANGING TO
SLEET AND SNOW. SNOWFALL HEAVY AT TIMES...ESPECIALLY CENTRAL AND
NORTH CENTRAL OKLAHOMA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES LATE MONDAY NIGHT INTO TUESDAY. THE STRONG
WINDS... ALONG WITH EVEN LIGHT ACCUMULATIONS OF ICE OR SNOW ON
EXPOSED SURFACES... ALSO MAY LEAD TO DISRUPTIONS OF COMMERCIAL
POWER. BLOWING SNOW MAY CREATE POOR VISIBILITY AND NEAR-
WHITEOUT CONDITIONS IN SOME AREAS.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS AS EARLY AS MONDAY EVENING... MAKING TRAVEL
TREACHEROUS. VERY COLD CONDITIONS FOLLOWING THE STORM MAY KEEP
SOME ROADS FROZEN AND HAZARDOUS FOR SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* PLAN NOW FOR THE POSSIBILITY OF IMMOBILIZING WEATHER
CONDITIONS BY TUESDAY MORNING. STOCK UP ON NECESSARY FOOD AND
OTHER PROVISIONS BEFORE THE STORM ARRIVES... INCLUDING ANY
NECESSARY MEDICATION.

* CONSIDER CHANGING TRAVEL PLANS. IT IS PROBABLY A GOOD IDEA TO
PLAN FOR THE POSSIBILITY THAT UNNECESSARY TRAVEL MAY BE
RESTRICTED... IF NOT IMPOSSIBLE... BY EARLY TUESDAY.

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

&&

$$

OKZ048-052-010215-
/O.CON.KOUN.WW.Y.0004.110201T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
1204 PM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM CST TUESDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM CST TUESDAY.

* TIMING: RAIN IS EXPECTED TO DEVELOP MONDAY EVENING THEN CHANGE
TO FREEZING RAIN AND SLEET DURING THE OVERNIGHT HOURS. A THIN
LAYER OF ICE IS POSSIBLE BEFORE CHANGING TO MAINLY SLEET. BY
SUNRISE TUESDAY MOST OF THE PRECIPITATION WILL BE IN THE FORM
OF SLEET AND SNOW. MOST OF THE PRECIPITATION IS EXPECTED TO BE
LIGHT AFTER NOON TUESDAY.

* MAIN IMPACT: 1 TO 3 INCHES OF SLEET AND SNOW ARE POSSIBLE.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL VALUES MONDAY NIGHT INTO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE BLOWING AND DRIFTING OF SNOW AND WILL CREATE
POOR VISIBILITY.

* ROADS...BRIDGES...AND OVERPASSES WILL BECOME SLICK AND
HAZARDOUS...MAKING TRAVEL TREACHEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

BURKE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
345 PM CST MON JAN 31 2011

OKZ008-012-013-018>020-024>026-029-030-011000-
/O.CAN.KOUN.WS.W.0001.110201T0000Z-110202T0000Z/
/O.NEW.KOUN.BZ.W.0001.110201T0400Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
345 PM CST MON JAN 31 2011

...BLIZZARD WARNING IN EFFECT FROM 10 PM THIS EVENING TO 6 PM CST
TUESDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 6 PM CST
TUESDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED.

* TIMING: LIGHT WINTRY MIX BY MIDNIGHT...QUICKLY TURNING TO HEAVY
SNOW AND BLOWING SNOW BY SUNRISE...PERSISTING THROUGH TUESDAY.

* MAIN IMPACT: MODERATE TO HEAVY SNOWFALL FROM AROUND 3 AM TO 3
PM. WINDS GUSTING OVER 45 MPH ON TUESDAY...CREATING BLOWING
SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 5 TO 15 DEGREES BELOW
ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW WILL
MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING STORM.
EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME DISORIENTED.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING HYPOTHERMIA
CAN HAPPEN QUICKLY.

&&

$$

OKZ004-005-009-010-014-011000-
/O.EXT.KOUN.WS.W.0001.110201T0400Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
345 PM CST MON JAN 31 2011

...WINTER STORM WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO
6 PM CST TUESDAY...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM TUESDAY TO NOON
CST WEDNESDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 10 PM THIS EVENING
TO 6 PM CST TUESDAY. A WIND CHILL WARNING REMAINS IN EFFECT FROM
6 PM TUESDAY TO NOON CST WEDNESDAY.

* TIMING: WINTER STORM TONIGHT AND TUESDAY. EXTREME COLD THEN
CONTINUING THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS.
BLOWING SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING
BELOW ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM
TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR FAMILY
IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS AND
INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO
SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
011000-
/O.EXT.KOUN.WS.W.0001.110201T0400Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
345 PM CST MON JAN 31 2011

...WINTER STORM WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO
6 PM CST TUESDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM 10 PM THIS EVENING
TO 6 PM CST TUESDAY.

* TIMING: LIGHT PRECIPITATION EARLY TONIGHT...THEN HEAVY WINTRY
PRECIPITATION LATE TONIGHT THROUGH TUESDAY AFTERNOON.

* MAIN IMPACT: INITIALLY LIGHT FREEZING RAIN AND SLEET. FREEZING
RAIN MORE SIGNIFICANT SOUTH OF A LAWTON TO SHAWNEE LINE... WHERE
A TENTH TO QUARTER INCH GLAZE IS POSSIBLE BEFORE CHANGING TO
SLEET AND SNOW. SNOWFALL HEAVY AT TIMES WITH ACCUMULATION OF 3
TO 7 INCHES.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL CAUSE
BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF HOW LITTLE
SNOW FALLS. DISRUPTIONS OF COMMERCIAL POWER ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR FAMILY
IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS AND
INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO
SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ048-052-011000-
/O.EXT.KOUN.WW.Y.0004.110201T0600Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
345 PM CST MON JAN 31 2011

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST TUESDAY...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM MIDNIGHT
TONIGHT TO 6 PM CST TUESDAY.

* TIMING: PERIODS OF FREEZING RAIN AND SLEET BEGINNING AFTER
MIDNIGHT...CHANGING TO SNOW AFTER SUNRISE TUESDAY.

* MAIN IMPACT: UP TO ONE TENTH INCH OF GLAZE FROM FREEZING
RAIN...FOLLOWED BY 1 TO 2 INCHES OF SLEET AND SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL TEMPERATURES NEAR ZERO TUESDAY. THE STRONG WINDS WILL
ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

BURKE

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
455 AM CST TUE FEB 1 2011

OKZ008-012-013-018>020-024>026-029-030-012145-
/O.CON.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
455 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: MODERATE TO HEAVY SNOW WILL GRADUALLY TAPER TO SCATTERED
SNOW SHOWERS AROUND NOON.

* MAIN IMPACT: WINDS GUSTING OVER 45 MPH...CREATING BLOWING
SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD. STORM TOTAL
SNOWFALL 6 TO 10 INCHES.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 5 TO 15 DEGREES BELOW
ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW
WILL MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING
STORM. EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME
DISORIENTED.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ004-005-009-010-014-012145-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
455 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST WEDNESDAY...

* TIMING: LIGHT TO MODERATE SNOW WILL GRADUALLY END DURING THE
MORNING. EXTREME COLD THEN CONTINUING THROUGH WEDNESDAY
MORNING.

* MAIN IMPACTS: SNOWFALL 2-4 INCHES. STRONG AND GUSTY WINDS.
BLOWING SNOW AND LOW VISIBILITY.

* OTHER IMPACTS: DANGEROUS WIND CHILL TEMPERATURES DROPPING
BELOW ZERO TONIGHT...AND FALLING TO 20 DEGREES BELOW ZERO FROM
TUESDAY AFTERNOON THROUGH WEDNESDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND
LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
012145-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
455 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: SNOW SOME HEAVY WILL GRADUALLY TAPER TO SNOW SHOWERS
DURING THE EARLY TO MID MORNING HOURS.

* MAIN IMPACT: SNOWFALL HEAVY AT TIMES WITH ACCUMULATION OF 4 TO 8
INCHES. HEAVIEST SNOWFALL WILL LIKELY OCCUR FROM PARTS OF
WESTERN NORTH TEXAS INTO SOUTH CENTRAL AND SOUTHEAST OKLAHOMA.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL
CAUSE BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF
HOW LITTLE SNOW FALLS. DISRUPTIONS OF COMMERCIAL POWER ARE
POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND
LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ048-052-012145-
/O.CON.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
455 AM CST TUE FEB 1 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* TIMING: PERIODS OF SLEET AND SNOW BECOMING ALL SNOW DURING THE
EARLY MORNING. SNOW ENDING BY THE LATE MORNING HOURS.

* MAIN IMPACT: UP TO ONE TENTH INCH OF GLAZE FROM FREEZING
RAIN...FOLLOWED BY 2 TO 4 INCHES OF SLEET AND SNOW.

* OTHER IMPACTS: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS
WIND CHILL TEMPERATURES NEAR ZERO TUESDAY. THE STRONG WINDS
WILL ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR
VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1121 AM CST TUE FEB 1 2011

OKZ008-012-013-018>020-024>026-029-030-020000-
/O.CON.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
KAY-GARFIELD-NOBLE-KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-
LINCOLN-CLEVELAND-POTTAWATOMIE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY...
KINGFISHER...GUTHRIE...STILLWATER...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...NORMAN...MOORE...SHAWNEE
1121 AM CST TUE FEB 1 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
FOR PARTS OF NORTH CENTRAL AND CENTRAL OKLAHOMA.

* TIMING: OCCASIONAL BANDS OF MODERATE SNOW THROUGH MID-AFTERNOON.
THE OVERALL SNOW COVERAGE WILL GRADUALLY DECREASE.

* MAIN IMPACT: WINDS GUSTING OVER 45 MPH...CREATING BLOWING
SNOW...NEAR WHITEOUT CONDITIONS...AND EXTREME COLD.

* OTHER IMPACTS: WIND CHILL TEMPERATURES 10 TO 20 DEGREES BELOW
ZERO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* DO NOT TRAVEL! STAY INSIDE! STRONG WINDS AND BLINDING SNOW
WILL MAKE TRAVEL NEARLY IMPOSSIBLE. THIS IS A LIFE THREATENING
STORM. EVEN PEDESTRIANS IN FAMILIAR AREAS MAY BECOME
DISORIENTED.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ004-005-009-010-014-020130-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.CON.KOUN.WC.W.0001.110202T0000Z-110202T1800Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
1121 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST WEDNESDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING. A WIND CHILL WARNING REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST WEDNESDAY FOR PARTS OF NORTHWEST OKLAHOMA.

* TIMING: LIGHT SNOW OR SNOW FLURRIES WILL TAPER OFF BY MID-
AFTERNOON. DANGEROUS WIND CHILLS WILL CONTINUE THIS AFTERNOON
THROUGH WEDNESDAY MORNING.

* MAIN IMPACTS: DANGEROUS WIND CHILL TEMPERATURES 20 TO 25 DEGREES
BELOW ZERO.

* OTHER IMPACTS: STRONG AND GUSTY WINDS. BLOWING SNOW AND LOW
VISIBILITY WILL OCCUR EVEN AFTER THE SNOW STOPS FALLING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND
LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ006-007-011-015>017-021>023-027-028-031>047-050-051-TXZ083>090-
020000-
/O.CON.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BLAINE-BECKHAM-WASHITA-CADDO-
GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-FOARD-WILBARGER-WICHITA-
KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...WATONGA...ELK CITY...SAYRE...
CORDELL...ANADARKO...CHICKASHA...PURCELL...SEMINOLE...
HOLDENVILLE...HOLLIS...MANGUM...HOBART...ALTUS...FREDERICK...
LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...ADA...COALGATE...
WALTERS...WAURIKA...ARDMORE...TISHOMINGO...MARIETTA...MADILL...
QUANAH...CHILLICOTHE...CROWELL...VERNON...WICHITA FALLS...
MUNDAY...KNOX CITY...SEYMOUR...ARCHER CITY...HOLLIDAY...
LAKESIDE CITY...HENRIETTA
1121 AM CST TUE FEB 1 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING FOR PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS.

* TIMING: SNOW WILL TAPER OFF FROM WEST TO EAST THIS AFTERNOON.

* MAIN IMPACT: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS WIND
CHILL TEMPERATURES WELL BELOW ZERO. THE STRONG WINDS WILL CAUSE
BLOWING SNOW AND VERY POOR VISIBILITY...REGARDLESS OF HOW MUCH
SNOW IS FALLING IF ANY. DISRUPTIONS OF COMMERCIAL POWER ARE
POSSIBLE.

* OTHER IMPACTS: LIGHT SNOWFALL OR SNOW FLURRIES WILL AFFECT MOST
OF THE AREA WITH OCCASIONAL POCKETS OF MODERATE SNOW POSSIBLE
THROUGH MID-AFTERNOON MAINLY NEAR AND EAST OF INTERSTATE 35.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND
LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ048-052-020000-
/O.CON.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
1121 AM CST TUE FEB 1 2011

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING FOR PARTS OF SOUTHEAST OKLAHOMA.

* TIMING: LIGHT SNOW OR SNOW FLURRIES WILL OCCUR THROUGH THE
AFTERNOON HOURS.

* MAIN IMPACT: VERY STRONG NORTH WINDS WILL CREATE DANGEROUS WIND
CHILL TEMPERATURES NEAR ZERO THIS AFTERNOON. THE STRONG WINDS
WILL ALSO CREATE BLOWING AND DRIFTING SNOW AND POOR VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE CAREFUL IF YOU HAVE TO TRAVEL. EVEN SMALL AMOUNTS OF ICE AND
SNOW CAN MAKE ROADS AND SIDEWALKS SLICK AND DANGEROUS.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
304 PM CST TUE FEB 1 2011

OKZ008-012-013-021100-
/O.CAN.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXB.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
KAY-GARFIELD-NOBLE-
INCLUDING THE CITIES OF...PONCA CITY...ENID...PERRY
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 9 AM CST WEDNESDAY. A WIND
CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND CHILL ADVISORY IS
IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST THURSDAY. THE BLIZZARD
WARNING HAS BEEN CANCELLED.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ018>020-024>026-029-030-021100-
/O.CAN.KOUN.BZ.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
KINGFISHER-LOGAN-PAYNE-CANADIAN-OKLAHOMA-LINCOLN-CLEVELAND-
POTTAWATOMIE-
INCLUDING THE CITIES OF...KINGFISHER...GUTHRIE...STILLWATER...
YUKON...EL RENO...MUSTANG...OKLAHOMA CITY...CHANDLER...NORMAN...
MOORE...SHAWNEE
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE
BLIZZARD WARNING HAS BEEN CANCELLED.


* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ006-007-011-015-016-021-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXB.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
ALFALFA-GRANT-MAJOR-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...CHEROKEE...MEDFORD...FAIRVIEW...
TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL 9 AM CST WEDNESDAY. A WIND
CHILL ADVISORY HAS ALSO BEEN ISSUED. THIS WIND CHILL ADVISORY IS
IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST THURSDAY. THE WINTER
STORM WARNING HAS BEEN CANCELLED.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL. BE SURE YOU CAN TAKE CARE OF YOURSELF AND YOUR
FAMILY IF YOU LOSE ELECTRICAL POWER. MONITOR WEATHER FORECASTS
AND INFORMATION.

* STAY INSIDE. IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND
LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ004-005-009-010-014-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
/O.EXT.KOUN.WC.W.0001.110201T2104Z-110202T1500Z/
HARPER-WOODS-ELLIS-WOODWARD-ROGER MILLS-
INCLUDING THE CITIES OF...BUFFALO...ALVA...ARNETT...WOODWARD...
CHEYENNE
304 PM CST TUE FEB 1 2011

...WIND CHILL WARNING NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT FROM 9 AM WEDNESDAY TO NOON CST
THURSDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. THE WIND
CHILL WARNING IS NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THROUGH WEDNESDAY
MORNING...THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING HYPOTHERMIA
CAN HAPPEN QUICKLY.

&&

$$

OKZ017-022-023-027-028-031>047-050-051-TXZ083>090-021100-
/O.CAN.KOUN.WS.W.0001.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
BLAINE-WASHITA-CADDO-GRADY-MCCLAIN-SEMINOLE-HUGHES-HARMON-GREER-
KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-
COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-LOVE-MARSHALL-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...CORDELL...ANADARKO...
CHICKASHA...PURCELL...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...
HOBART...ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...
SULPHUR...ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...
TISHOMINGO...MARIETTA...MADILL...QUANAH...CHILLICOTHE...CROWELL...
VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER
STORM WARNING HAS BEEN CANCELLED.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ048-052-021100-
/O.CAN.KOUN.WW.Y.0004.000000T0000Z-110202T0000Z/
/O.NEW.KOUN.WC.Y.0002.110201T2104Z-110203T1800Z/
ATOKA-BRYAN-
INCLUDING THE CITIES OF...ATOKA...DURANT
304 PM CST TUE FEB 1 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST THURSDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST THURSDAY. THE WINTER
WEATHER ADVISORY HAS BEEN CANCELLED.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW
ZERO FOR AN EXTENDED PERIOD OF TIME...THROUGH THURSDAY MORNING.

* OTHER IMPACTS: AREAS OF BLOWING SNOW TONIGHT...PATCHY BLOWING
SNOW WEDNESDAY. OVERNIGHT LOWS CAPABLE OF BURSTING PIPES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS AND AREAS OF
BLOWING SNOW WILL MAKE TRAVEL VERY DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
424 AM CST WED FEB 2 2011

OKZ004>016-021-021800-
/O.CON.KOUN.WC.W.0001.000000T0000Z-110202T1500Z/
/O.CON.KOUN.WC.Y.0002.110202T1500Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
424 AM CST WED FEB 2 2011

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO NOON CST THURSDAY...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING. A WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO NOON CST THURSDAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL AROUND 20 BELOW ZERO THIS MORNING...
THEN BETWEEN 5 AND 15 BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY. EXTENDED PERIOD
OF SUBFREEZING TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. MONITOR WEATHER
FORECASTS AND INFORMATION.

&&

$$

OKZ017>020-022>048-050>052-TXZ083>090-021800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
424 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW ZERO
THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING
TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE
TRAVEL DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
906 AM CST WED FEB 2 2011

OKZ004>016-021-022315-
/O.EXP.KOUN.WC.W.0001.000000T0000Z-110202T1500Z/
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
906 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...
...WIND CHILL WARNING HAS EXPIRED...

THE WIND CHILL WARNING IS NO LONGER IN EFFECT. A WIND CHILL
ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND 15
BELOW THROUGH THURSDAY MORNING.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY. EXTENDED PERIOD
OF SUBFREEZING TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND
LIFE THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY. MONITOR
WEATHER FORECASTS AND INFORMATION.

&&

$$

OKZ017>020-022>048-050>052-TXZ083>090-022315-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
906 AM CST WED FEB 2 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST
THURSDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST THURSDAY
ACROSS MUCH OF OKLAHOMA AND ALL OF WESTERN NORTH TEXAS.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW
ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING
TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE
TRAVEL DIFFICULT AND HAZARDOUS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
108 AM CST THU FEB 3 2011

OKZ017>020-022>048-050>052-TXZ083>090-031515-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
108 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW
ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING
TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

* OTHER IMPACTS: PATCHES OF DRIFTING SNOW TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE
TRAVEL DIFFICULT IN SOME AREAS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ004>016-021-031515-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
108 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

* TIMING: DANGEROUSLY COLD THROUGH THURSDAY MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND
15 BELOW THROUGH THURSDAY MORNING.

* EXTENDED PERIOD OF SUBFREEZING TEMPERATURES COULD CAUSE SOME
PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND LIFE
THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
443 AM CST THU FEB 3 2011

OKZ017>020-022>048-050>052-TXZ083>090-031800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
BLAINE-KINGFISHER-LOGAN-PAYNE-WASHITA-CADDO-CANADIAN-OKLAHOMA-
LINCOLN-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-
HARMON-GREER-KIOWA-JACKSON-TILLMAN-COMANCHE-STEPHENS-GARVIN-
MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-
MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-
ARCHER-CLAY-
INCLUDING THE CITIES OF...WATONGA...KINGFISHER...GUTHRIE...
STILLWATER...CORDELL...ANADARKO...YUKON...EL RENO...MUSTANG...
OKLAHOMA CITY...CHANDLER...CHICKASHA...PURCELL...NORMAN...MOORE...
SHAWNEE...SEMINOLE...HOLDENVILLE...HOLLIS...MANGUM...HOBART...
ALTUS...FREDERICK...LAWTON...DUNCAN...PAULS VALLEY...SULPHUR...
ADA...COALGATE...WALTERS...WAURIKA...ARDMORE...TISHOMINGO...
ATOKA...MARIETTA...MADILL...DURANT...QUANAH...CHILLICOTHE...
CROWELL...VERNON...WICHITA FALLS...MUNDAY...KNOX CITY...SEYMOUR...
ARCHER CITY...HOLLIDAY...LAKESIDE CITY...HENRIETTA
443 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

* TIMING: DANGEROUSLY COLD THROUGH THIS MORNING.

* MAIN IMPACT: WIND CHILL CONSISTENTLY BETWEEN 5 AND 15 BELOW
ZERO THROUGH THURSDAY MORNING. EXTENDED PERIOD OF SUBFREEZING
TEMPERATURES COULD CAUSE SOME PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* STAY INDOORS AS MUCH AS POSSIBLE. SNOW PACKED ROADS WILL MAKE
TRAVEL DIFFICULT IN SOME AREAS.

* IF YOU HAVE TO BE OUTSIDE DRESS IN LAYERS AND LEAVE NO SKIN
EXPOSED TO THE WIND. FROSTBITE AND LIFE THREATENING
HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

OKZ004>016-021-031800-
/O.CON.KOUN.WC.Y.0002.000000T0000Z-110203T1800Z/
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BECKHAM-
INCLUDING THE CITIES OF...BUFFALO...ALVA...CHEROKEE...MEDFORD...
PONCA CITY...ARNETT...WOODWARD...FAIRVIEW...ENID...PERRY...
CHEYENNE...TALOGA...WEATHERFORD...CLINTON...ELK CITY...SAYRE
443 AM CST THU FEB 3 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY.

* TIMING: DANGEROUSLY COLD THROUGH THIS MORNING.

* MAIN IMPACT: WIND CHILLS WILL RANGE FROM BETWEEN 5 TO AROUND 15
BELOW ZERO THROUGH THIS MORNING.

* EXTENDED PERIOD OF SUBFREEZING TEMPERATURES COULD CAUSE SOME
PIPES TO BURST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* AVOID TRAVEL IF POSSIBLE. IF YOU HAVE TO BE OUTSIDE DRESS IN
LAYERS AND LEAVE NO SKIN EXPOSED TO THE WIND. FROSTBITE AND
LIFE THREATENING HYPOTHERMIA CAN HAPPEN QUICKLY.

&&

$$

Special Weather Statements (SPS)

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1026 AM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-282300-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1026 AM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK.
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER
PRECIPTIATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY.

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER
PRECIPITATION WILL BEGIN TO BE POSSIBLE ACROSS PARTS OF NORTHERN AND
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE ONE TO ALL OF
THE TYPES OF RAIN... FREEZING RAIN... SLEET... AND SNOW. RESIDENTS
SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES AS NEW
DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION
TODAY AND SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS.
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE
WILDFIRE POTENTIAL TODAY AND SATURDAY. THE WORST FIRE WEATHER
CONDITIONS COULD BE SATURDAY AFTERNOON WHEN THERE IS THE POTENTIAL
FOR STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
604 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
604 PM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK.
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER
PRECIPITATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY.

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER
PRECIPITATION WILL BECOME POSSIBLE ACROSS PARTS OF NORTHERN AND
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE ONE TO ALL OF
THE TYPES OF RAIN... FREEZING RAIN... SLEET... AND SNOW. RESIDENTS
SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR UPDATES AS NEW
DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION
THROUGH SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS.
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE
WILDFIRE POTENTIAL ON SATURDAY WHEN THERE IS THE POTENTIAL FOR
STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
611 PM CST FRI JAN 28 2011

OKZ004>048-050>052-TXZ083>090-291000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
611 PM CST FRI JAN 28 2011

...BIG CHANGES ON THE WAY FOR PARTS OF OKLAHOMA AND NORTH TEXAS...

WINTER WEATHER WILL AFFECT OKLAHOMA AND NORTH TEXAS EARLY NEXT WEEK.
MUCH COLDER TEMPERATURES ARE EXPECTED AS WELL AS THE CHANCE OF
WINTER PRECIPITATION... ALTHOUGH THE TYPE AND AMOUNT OF WINTER
PRECIPITATION IS STILL UNCERTAIN.

A COLD FRONT WILL MOVE INTO THE AREA LATE SATURDAY INTO SUNDAY. THIS
WILL LEAD TO COOLER CONDITIONS SUNDAY WITH HIGH TEMPERATURES CLOSER
TO NORMAL. MEANWHILE... A DISTURBANCE WILL MOVE EAST ACROSS TEXAS
BRINGING A CHANCE OF LIGHT RAIN TO PARTS OF SOUTHERN AND CENTRAL
OKLAHOMA AND NORTH TEXAS SATURDAY NIGHT AND SUNDAY.

EVEN COOLER TEMPERATURES ARE EXPECTED MONDAY AS COOL AIR CONTINUES
TO MOVE INTO THE REGION. LOW PRECIPITATION CHANCES WILL EXPAND NORTH
AND WEST SUNDAY NIGHT AND MONDAY. MOST OF THE PRECIPITATION WILL
FALL IN THE FORM OF LIGHT RAIN OR DRIZZLE. HOWEVER... LIGHT WINTER
PRECIPITATION WILL BECOME POSSIBLE ACROSS PARTS OF NORTHERN AND
MAYBE INTO CENTRAL OKLAHOMA.

THE BIGGEST CHANGES WILL OCCUR MONDAY NIGHT INTO TUESDAY. A MUCH
COLDER ARCTIC AIRMASS WILL MOVE INTO THE REGION TUESDAY... WITH
PRECIPITATION CHANCES INCREASING MONDAY NIGHT INTO TUESDAY AS AN
UPPER LEVEL STORM SYSTEM MOVES ACROSS THE REGION. THIS WILL LEAD TO
A CHANCE OF WINTER PRECIPITATION ACROSS PARTS OF OKLAHOMA AND
WESTERN NORTH TEXAS. THE PRECIPITATION IS EXPECTED TO END FROM WEST
TO EAST TUESDAY NIGHT. BRISK NORTH WINDS WILL ALSO ACCOMPANY THE
COLDER AIR LEADING TO EVEN COLDER WIND CHILLS... WITH BELOW ZERO
WIND CHILLS POSSIBLE TUESDAY NIGHT ACROSS A LARGE PORTION OF
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS.

AS FOR THE PRECIPITATION MONDAY NIGHT AND TUESDAY... THERE CONTINUES
TO BE UNCERTAINTIES AT ANY GIVEN LOCATION AS TO THE PRECIPITATION
TYPE... TIMING OF WHEN THE WINTER PRECIPITATION WILL BEGIN... AND
HOW MUCH WINTER PRECIPITATION WILL OCCUR. SOME LOCATIONS ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS MAY RECEIVE RAIN...
FREEZING RAIN... SLEET...OR SNOW...OR A COMBINATION OF THESE.
RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS FOR
UPDATES AS NEW DATA IS RECEIVED.

IN THE MEAN TIME... PLEASANT WEATHER WILL OCCUR ACROSS THE REGION
THROUGH SATURDAY WITH TEMPERATURES WELL ABOVE SEASONAL NORMALS.
THESE WARM TEMPERATURES AND THE DRY CONDITIONS WILL ELEVATE THE
WILDFIRE POTENTIAL ON SATURDAY WHEN THERE IS THE POTENTIAL FOR
STRONGER WINDS.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
552 AM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-292300-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
552 AM CST SAT JAN 29 2011

...BIG CHANGES ON THE WAY EARLY NEXT WEEK...

FOLLOWING TWO VERY WARM DAYS...SUNDAY WILL BRING COLDER TEMPERATURES
ALONG WITH A CHANCE FOR RAIN ACROSS PARTS OF SOUTH CENTRAL
AND SOUTHEAST OKLAHOMA. THE COLDER WEATHER WILL ARRIVE AS A STORM
SYSTEM MOVES FROM BAJA THEN EAST ACROSS TEXAS AND FAR SOUTHERN
OKLAHOMA.

A SECOND AND STRONGER STORM SYSTEM WILL MOVE ACROSS PARTS OF
CALIFORNIA ON SUNDAY AND IS EXPECTED TO BE NEAR THE FOUR CORNERS
REGION BY LATE MONDAY EVENING. MEANWHILE...VERY COLD AIR IN PLACE
ACROSS CANADA WILL MOVE SOUTH INTO THE NORTHERN UNITED STATES.
THIS AIR WILL REACH OKLAHOMA MONDAY NIGHT INTO TUESDAY. MOST
LOCATIONS WILL LIKELY SEE FALLING TEMPERATURES DURING THE
DAYTIME TUESDAY. ALTHOUGH PRECIPITATION WILL BE WELCOME AS MANY
AREAS HAVE BEEN EXCEEDINGLY DRY...SOME OF IT WILL LIKELY FALL
IN THE FORM OF SNOW...SLEET AND FREEZING RAIN.

AT THIS TIME...IT APPEARS THE GREATEST IMPACT FROM THIS SYSTEM
WILL OCCUR FROM MONDAY EVENING INTO THE DAYTIME HOURS TUESDAY.
IT IS STILL TOO EARLY TO PINPOINT EXACT AMOUNTS OF SNOW...SLEET
OR ICE ACCUMULATION...BUT ENOUGH MAY FALL TO IMPACT TRAVEL AND
COMMERCE. STRONG NORTHERLY WINDS ARE ALSO EXPECTED WHICH MAY
PRODUCE WINDS CHILL READINGS WELL BELOW ZERO BY TUESDAY EVENING.

NOW IS THE TIME TO PREPARE AND PLAN FOR A POSSIBLE WINTER STORM
EARLY NEXT WEEK. RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST
FORECASTS FOR UPDATES AS NEW DATA ARRIVE.

$$

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
357 PM CST SAT JAN 29 2011

OKZ004>048-050>052-TXZ083>090-301100-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
357 PM CST SAT JAN 29 2011

...WINTER WEATHER RETURNS NEXT WEEK...

FOLLOWING VERY WARM DAYS FRIDAY AND SATURDAY...COLDER TEMPERATURES
ARE EXPECTED SUNDAY ALONG WITH A CHANCE FOR RAIN ACROSS PARTS OF
SOUTHEAST OKLAHOMA.

A STRONG STORM SYSTEM WILL MOVE ACROSS CALIFORNIA ON SUNDAY AND IS
EXPECTED TO BE NEAR THE FOUR CORNERS REGION BY LATE MONDAY EVENING.
MEANWHILE...VERY COLD AIR IN PLACE ACROSS CANADA WILL MOVE SOUTH
INTO THE NORTHERN UNITED STATES. THIS AIR WILL REACH OKLAHOMA MONDAY
NIGHT INTO TUESDAY. MOST LOCATIONS WILL LIKELY SEE FALLING
TEMPERATURES DURING THE DAYTIME TUESDAY. ALTHOUGH PRECIPITATION
WILL BE WELCOME AS MANY AREAS HAVE BEEN EXCEEDINGLY DRY...SOME OF IT
WILL LIKELY FALL IN THE FORM OF SNOW...SLEET AND FREEZING RAIN.

AT THIS TIME...IT APPEARS THE GREATEST IMPACT FROM THIS SYSTEM
WILL OCCUR FROM MONDAY EVENING INTO THE DAYTIME HOURS TUESDAY.
IT IS STILL TOO EARLY TO PINPOINT EXACT AMOUNTS OF SNOW...SLEET
OR ICE ACCUMULATION...BUT ENOUGH MAY FALL TO IMPACT TRAVEL AND
COMMERCE. STRONG NORTHERLY WINDS ARE ALSO EXPECTED WHICH MAY
PRODUCE WIND CHILL READINGS WELL BELOW ZERO BY TUESDAY EVENING.

NOW IS THE TIME TO PREPARE AND PLAN FOR A POSSIBLE WINTER STORM
EARLY NEXT WEEK. RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST
FORECASTS FOR UPDATES AS NEW DATA ARRIVE.

$$

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