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2 products issued by NWS for:

Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1019 AM MST SUN DEC 21 2014

...HEAVY MOUNTAIN SNOWS TO CONTINUE THROUGH TUESDAY...

...SNOW AND BLOWING SNOW LIKELY TO SIGNIFICANTLY IMPACT TRAVEL
ALONG THE INTERSTATE 80 CORRIDOR BETWEEN RAWLINS AND LARAMIE THIS
AFTERNOON AND TONIGHT...

.VERY MOIST PACIFIC AIR COMBINED WITH STRONG WEST WINDS HAVE SET
THE STAGE FOR HEAVY SNOW FOR THE SNOWY AND SIERRA MADRE MOUNTAIN
RANGES. STRONG UPSLOPE FLOW AND AN APPROACHING STORM SYSTEM WILL
ALLOW SNOWFALL RATES TO INCREASE TODAY. ACCUMULATIONS OF 2 TO
3 FEET ARE EXPECTED THROUGH TUESDAY MORNING IN THE MOUNTAINS.
SNOW AMOUNTS WILL BE MUCH LOWER IN THE ADJACENT FOOTHILLS.
HOWEVER...STRONG WEST TO SOUTHWEST WINDS WILL COMBINE WITH SNOW
TO PRODUCE VERY LOW VISIBILITIES. THIS WILL BE ESPECIALLY TRUE IN
AND AROUND ARLINGTON...ALONG INTERSTATE 80 BETWEEN LARAMIE AND
RAWLINS. TRAVEL WILL BE EXTREMELY DANGEROUS THIS AFTERNOON AND
TONIGHT.

WYZ113-115-220600-
/O.CON.KCYS.WW.Y.0030.141221T1900Z-141222T1500Z/
UPPER NORTH PLATTE RIVER BASIN-LARAMIE VALLEY-
INCLUDING THE CITIES OF...SARATOGA...ENCAMPMENT...RIVERSIDE...
LARAMIE
1019 AM MST SUN DEC 21 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
MONDAY...

* TIMING...LIGHT SNOW WILL DEVELOP BY LATE MORNING OR EARLY
  AFTERNOON ALONG WITH GUSTY WEST WINDS. THESE CONDITIONS WILL
  PERSIST THROUGH EARLY MONDAY.

* TOTAL SNOW ACCUMULATIONS...GENERALLY 1 TO 3 INCHES.

* WINDS/VISIBILITY...THE COMBINATION OF GUSTY WEST WINDS AND
  FALLING SNOW COULD RESULT IN AREAS OF VERY LOW VISIBILITIES
  UNDER ONE QUARTER OF A MILE.

* IMPACTS...TRAVEL WITHIN THE LARAMIE AND UPPER NORTH PLATTE
  RIVER VALLEYS MAY BE IMPACTED BY THESE WINTRY CONDITIONS. THIS
  INCLUDES THE CITIES OF LARAMIE AND SARATOGA. THOSE WITH TRAVEL
  PLANS THROUGH SOUTHEAST WYOMING WILL WANT TO USE EXTREME
  CAUTION TODAY AND MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS AND WHEN APPROACHING AND DRIVING OVER RAILROAD CROSSINGS.

&&

$$




Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
500 AM MST SUN DEC 21 2014

WYZ103>106-109>117-221200-
NORTH LARAMIE RANGE-FERRIS/SEMINOE/SHIRLEY MOUNTAINS-
SHIRLEY BASIN-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS-
SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE-
UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY-
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
500 AM MST SUN DEC 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WYOMING...SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

VERY ACTIVE WEATHER WILL CONTINUE ACROSS SOUTHEAST WYOMING TODAY
WITH WIDESPREAD WIND AND SNOW ALONG AND WEST OF THE LARAMIE RANGE
OVER THE NEXT 24 TO 48 HOURS. HIGH WINDS WITH GUSTS IN EXCESS OF
65 MPH WILL POSE A RISK TO LIGHT WEIGHT AND HIGH PROFILE VEHICLES
IN THE TYPICAL WIND PRONE AREAS THROUGH LATE THIS EVENING. HIGH
WIND WARNINGS ARE IN EFFECT. LOOK FOR LIGHT TO MODERATE SNOW TO
COMBINE WITH THE WINDS THIS AFTERNOON...GIVING WAY TO VERY LOW
VISIBILITIES AND NEAR WHITEOUT CONDITIONS. MOUNTAIN SNOWS WILL
PERSIST AS WELL...WITH UPWARDS OF 3 FEET EXPECTED IN THE SNOWIES
AND SIERRA MADRES THROUGH TUESDAY. WINTER STORM WARNINGS AND
ADVISORIES ARE IN EFFECT.

TRAVEL WILL LIKELY BECOME EXTREMELY HAZARDOUS THIS AFTERNOON AND
EVENING WITH LOW VISIBILITY AND SLICK OR SNOW COVERED ROADS. THIS
WILL BE ESPECIALLY TRUE FOR INTERSTATE 80 BETWEEN LARAMIE AND
RAWLINS WHERE WINDS WILL BE THE STRONGEST WITH FRESH SNOW. SOME
LESS TRAVELED ROADS COULD ALSO BECOME IMPASSIBLE. THOSE TRAVELING
FOR THE UPCOMING HOLIDAY ARE ADVISED TO RECONSIDER TRAVEL PLANS
AND CHECK ROAD CONDITIONS PRIOR TO DEPARTING. REMEMBER TO CARRY A
WINTER SURVIVAL KIT IN YOUR VEHICLE AT ALL TIMES. TRAVEL IS ALSO
HIGHLY DISCOURAGED FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES DUE
TO DANGEROUS CROSSWINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A STORM SYSTEM WILL IMPACT THE AREA FROM CHRISTMAS DAY THROUGH
FRIDAY. WIDESPREAD ACCUMULATING SNOWFALL WILL BE POSSIBLE...BUT
AMOUNTS ARE STILL UNCERTAIN AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND THE GENERAL PUBLIC ARE ENCOURAGED TO REPORT SNOWFALL
AMOUNTS...HIGH WINDS...OR DANGEROUS ROAD CONDITIONS TO THE
NATIONAL WEATHER SERVICE OFFICE IN CHEYENNE BY PHONE OR SOCIAL
MEDIA PLATFORMS.

$$



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Page last modified: May 16, 2007
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