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Regional Weather Summaries Associated with the
April 14, 2011 Severe Weather Outbreak in Oklahoma

View just Tornado Warnings
View just Severe Thunderstorm Warnings
View just Regional Weather Discussions

 

FPUS74 KOUN 141804
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
104 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-141930-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
104 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 1 PM..SURFACE OBSERVATIONS INDICATED THAT A DRYLINE EXTENDED
ALONG AND JUST WEST OF THE INTERSTATE 35 CORRIDOR. BEHIND THE
DRYLINE...DEWPOINTS HAVE DROPPED INTO THE 30S AND 40S...WITH UPPER
50S AND LOW 60S AHEAD OF THE DRYLINE.

THUNDERSTORMS WILL BEGIN TO DEVELOP AS THE DRYLINE CONTINUES TO PUSH
EASTWARD THROUGHOUT THE AFTERNOON AS A SURFACE LOW ACROSS SOUTHERN
KANSAS INTENSIFIES. THUNDERSTORMS SHOULD BEGIN TO DEVELOP AROUND 3
PM. SUFFICIENT WIND SHEAR AND INSTABILITY WILL SUPPORT STRONG TO
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL..DAMAGING
WINDS...AND ISOLATED TORNADOES MAINLY ALONG AND EAST OF A LINE FROM
CUSHING TO ADA TO DURANT. BEHIND THE DRYLINE...STRONG WESTERLY WINDS
WILL RESULT IN AND ELEVATED WILDFIRE POTENTIAL.

$$

BAIN/06

FPUS74 KOUN 141854
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
154 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142000-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
154 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
SHORTLY BEFORE 2 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE
EXTENDING FROM NEAR BRAMAN TO GUTHRIE TO OKLAHOMA CITY AND
HEALDTON. THE DRYLINE WAS PUSHING SLOWLY TO THE EAST. HEATING
AND A INCREASE IN GULF MOISTURE HAS RESULTED IN MODERATE
INSTABILITY EAST OF THE DRYLINE.

BY 3 OR 4 PM...ISOLATED TO WIDELY SCATTERED STORMS WILL LIKELY FORM
ALONG AND EAST OF THE DRYLINE. WITH STRONG SHEAR IN PLACE...MOST STORMS
WILL BECOME SEVERE QUICKLY AND PRODUCE VERY LARGE HAIL. NOW IS THE
TIME TO PREPARE FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY IF WARNINGS ARE ISSUED.

$$

FPUS74 KOUN 141947
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
247 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142100-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
247 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 230 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR BRAMAN TO GUTHRIE TO OKLAHOMA CITY AND HEALDTON. THE
DRYLINE WAS PUSHING SLOWLY TO THE EAST. HEATING AND A INCREASE IN
GULF MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE
DRYLINE.

IN BETWEEN 3 AND 4 PM...ISOLATED TO WIDELY SCATTERED STORMS WILL
LIKELY FORM ALONG AND EAST OF THE DRYLINE. WITH STRONG SHEAR AND
SUFFICIENT INSTABILITY IN PLACE...MOST STORMS WILL BECOME SEVERE
QUICKLY AND PRODUCE VERY LARGE HAIL...STRONG DAMAGING WINDS AND
TORNADOES. NOW IS THE TIME TO PREPARE FOR THREATENING WEATHER AND BE
PREPARED TO MOVE TO A PLACE OF SAFETY IF WARNINGS ARE ISSUED.

$$

BAIN/06

FPUS74 KOUN 142018
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
318 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142200-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
318 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 300 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR PONCA CITY TO STILLWATER TO WAURIKA. THE DRYLINE WAS
PUSHING SLOWLY TO THE EAST. HEATING AND AN INCREASE IN GULF
MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE DRYLINE.
AROUND 310 PM THUNDERSTORMS BEGAN TO DEVELOP ACROSS NORTH CENTRAL
AND SOUTH CENTRAL OKLAHOMA. THESE STORMS WILL CONTINUE TO MOVE
TOWARDS THE EAST NORTHEAST.

ISOLATED TO WIDELY SCATTERED STORMS WILL CONTINUE TO FORM ALONG AND
EAST OF THE DRYLINE. WITH STRONG SHEAR AND SUFFICIENT INSTABILITY
IN PLACE...MOST STORMS WILL BECOME SEVERE QUICKLY AND PRODUCE VERY
LARGE HAIL...STRONG DAMAGING WINDS AND TORNADOES. NOW IS THE TIME TO
PREPARE FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO A PLACE
OF SAFETY IF WARNINGS ARE ISSUED.

$$

BAIN/WR

FPUS74 KOUN 142047
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
347 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142200-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
347 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 300 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR PONCA CITY TO STILLWATER TO WAURIKA. THE DRYLINE WAS
PUSHING SLOWLY TO THE EAST. HEATING AND AN INCREASE IN GULF
MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE DRYLINE.
AROUND 340 PM STRONG TO SEVERE THUNDERSTORMS WERE DEVELOPING ACROSS
NORTH CENTRAL AND SOUTH CENTRAL OKLAHOMA.

SCATTERED STORMS WILL CONTINUE TO FORM ALONG AND EAST OF THE
DRYLINE. WITH STRONG SHEAR AND SUFFICIENT INSTABILITY IN
PLACE...MOST STORMS WILL BECOME SEVERE QUICKLY AND WILL HAVE THE
POTENTIAL TO PRODUCE VERY LARGE HAIL...STRONG DAMAGING WINDS AND
TORNADOES.

$$

BAIN/WR

FPUS74 KOUN 142119
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
419 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142300-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
419 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 410 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR PONCA CITY TO STILLWATER TO LINDSAY TO WAURIKA. THE
DRYLINE WAS PUSHING TO THE EAST. HEATING AND AN INCREASE IN
GULF MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE
DRYLINE. A LINE OF SEVERE THUNDERSTORMS EXTENDED ALONG A LINE FROM
JUST EAST OF STILLWATER TO CHANDLER TO DAVIS.

THUNDERSTORMS WILL CONTINUE TO FORM ALONG AND EAST OF THE
DRYLINE. WITH STRONG SHEAR AND SUFFICIENT INSTABILITY IN
PLACE...MOST STORMS WILL BECOME SEVERE QUICKLY AND WILL HAVE THE
POTENTIAL TO PRODUCE VERY LARGE HAIL...STRONG DAMAGING WINDS AND
TORNADOES.

$$

BAIN/WR

FPUS74 KOUN 142147
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
447 PM CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142300-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
447 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 440 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR PONCA CITY TO STILLWATER TO CARNEY TO RINGLING. THE
DRYLINE WAS PUSHING TO THE EAST. HEATING AND AN INCREASE IN
GULF MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE
DRYLINE. A LINE OF SEVERE THUNDERSTORMS EXTENDED ALONG A LINE FROM
JUST EAST OF QUAY TO STROUD TO SHAWNEE TO PINK. STRONG TO SEVERE
THUNDERSTORMS WERE ALSO ONGOING NEAR ROFF..SULPHUR...AND OVERBROOK
IN SOUTH CENTRAL OKLAHOMA.

THUNDERSTORMS WILL CONTINUE TO INTENSITY AND MOVE TOWARDS THE EAST
NORTHEAST LATE THIS AFTERNOON AND INTO THE EVENING HOURS. WITH
STRONG SHEAR AND SUFFICIENT INSTABILITY IN PLACE...MOST STORMS WILL
BECOME SEVERE QUICKLY AND WILL HAVE THE POTENTIAL TO PRODUCE VERY
LARGE HAIL...STRONG DAMAGING WINDS AND TORNADOES.

$$

BAIN/WR

FPUS74 KOUN 142232
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
528 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142330-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
532 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 520 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR RIPLEY TO WELLSTON TO SLAUGHTERVILLE TO RINGLING. THE
DRYLINE WAS PUSHING TO THE EAST. HEATING AND AN INCREASE IN GULF
MOISTURE HAS RESULTED IN MODERATE INSTABILITY EAST OF THE DRYLINE.
SEVERE THUNDERSTORMS WERE ONGOING ACROSS NORTHERN POTTAWATOMIE
AND SEMINOLE COUNTIES IN EAST CENTRAL OKLAHOMA. FURTHER
SOUTH..SEVERE THUNDERSTORMS WERE OCCURRING IN CARTER...EXTREME
EASTERN MURRAY..JOHNSTON AND SOUTHERN PONTOTOC COUNTIES.

THUNDERSTORMS WILL CONTINUE TO INTENSITY AND MOVE TOWARDS THE EAST
NORTHEAST LATE THIS AFTERNOON AND INTO THE EVENING HOURS AHEAD OF
THE DRYLINE. WITH STRONG SHEAR AND SUFFICIENT INSTABILITY IN
PLACE...MOST STORMS WILL BECOME SEVERE QUICKLY AND WILL HAVE THE
POTENTIAL TO PRODUCE VERY LARGE HAIL...STRONG DAMAGING WINDS AND
TORNADOES.

$$

BAIN/WR

FPUS74 KOUN 142236
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
535 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-142330-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
536 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 520 PM...SURFACE OBSERVATIONS INDICATED A DRYLINE EXTENDING
FROM NEAR RIPLEY TO WELLSTON TO SLAUGHTERVILLE TO RINGLING. THE
DRYLINE WAS PUSHING TO THE EAST ACROSS PORTIONS OF NORTH CENTRAL
OKLAHOMA. FURTHER SOUTH HOWEVER..THE DRYLINE WAS BECOMING NEARLY
STATIONARY. HEATING AND AN INCREASE IN GULF MOISTURE HAS RESULTED
IN MODERATE INSTABILITY EAST OF THE DRYLINE. SEVERE THUNDERSTORMS
WERE ONGOING ACROSS NORTHERN POTTAWATOMIE AND SEMINOLE COUNTIES IN
EAST CENTRAL OKLAHOMA. FURTHER SOUTH..SEVERE THUNDERSTORMS WERE
OCCURRING IN CARTER...EXTREME EASTERN MURRAY..JOHNSTON AND SOUTHERN
PONTOTOC COUNTIES.

THUNDERSTORMS WILL CONTINUE TO INTENSITY AND MOVE TOWARDS THE EAST
NORTHEAST LATE THIS AFTERNOON AND INTO THE EVENING HOURS AHEAD OF
THE DRYLINE. WITH STRONG SHEAR AND SUFFICIENT INSTABILITY IN
PLACE...MOST STORMS WILL BECOME SEVERE QUICKLY AND WILL HAVE THE
POTENTIAL TO PRODUCE VERY LARGE HAIL...STRONG DAMAGING WINDS AND
TORNADOES.

$$

BAIN/WR

FPUS74 KOUN 142329
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
628 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-150100-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
629 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 620 PM...STRONG TO SEVERE THUNDERSTORMS WERE ACROSS PORTIONS
OF SOUTH EASTERN AND SOUTH CENTRAL OKLAHOMA. THESE THUNDERSTORMS
WERE DEVELOPING AHEAD OF DRYLINE WHICH EXTENDED FROM NEAR PERKINS TO
WASHINGTON TO RINGLING. THE DRYLINE HAD BECOME NEAR STATIONARY WITH
A SLIGHT REGRESSION BACK TOWARDS THE EAST. FURTHER TO THE WEST AND
NORTHWEST..A COLD FRONT WAS NOTED ACROSS PORTIONS OF NORTH CENTRAL
OKLAHOMA ALONG A LINE FROM MEDFORD TO KINGFISHER AND BACK WESTWARD
TO NEAR ERICK. STRONG WINDS WERE ALSO NOTED ACROSS PORTIONS OF
EXTREME SOUTHWESTERN OKLAHOMA WITH NEAR HOLLIS..ALTUS...AND
GRANDFIELD WITH WIND GUSTS APPROACHING 35 TO 40 MPH.


THUNDERSTORMS WILL CONTINUE TO INTENSITY AND MOVE TOWARDS THE EAST
NORTHEAST INTO THE EVENING HOURS AHEAD OF THE DRYLINE. WITH STRONG
SHEAR AND SUFFICIENT INSTABILITY IN PLACE...MOST STORMS WILL BECOME
SEVERE QUICKLY AND WILL HAVE THE POTENTIAL TO PRODUCE VERY LARGE
HAIL...STRONG DAMAGING WINDS AND TORNADOES. THE COLD FRONT WILL
OVERTAKE THE DRYLINE FROM NORTH TO SOUTH AS THE EVENING PROGRESSES.
A FEW ADDITIONAL THUNDERSTORMS CANNOT BE RULED OUT AS THIS PROCESS
OCCURS. STRONG WESTERLY AND NORTHWESTERLY WINDS WILL ELEVATE THE
WILDFIRE POTENTIAL INTO THE EARLY EVENING HOURS. A FEW AREAS OF
BLOWING DUST WILL ALSO BE POSSIBLE ACROSS SOUTHWESTERN OKLAHOMA.

$$

BAIN/WR

FPUS74 KOUN 150019
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
718 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-150200-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
719 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...
AROUND 700 PM...STRONG TO SEVERE THUNDERSTORMS WERE ACROSS PORTIONS
OF SOUTH EASTERN AND SOUTH CENTRAL OKLAHOMA. THESE THUNDERSTORMS
WERE DEVELOPING AHEAD OF DRYLINE WHICH EXTENDED FROM NEAR LUTHER TO
WASHINGTON TO NEAR VELMA. THE DRYLINE HAD BECOME NEAR STATIONARY
WITH A SLIGHT REGRESSION BACK TOWARDS THE WEST. THE COLD FRONT HAD
BEGUN TO OVERTAKE THE DRYLINE ACROSS PORTIONS OF LINCOLN AND
OKLAHOMA COUNTIES IN CENTRAL OKLAHOMA. THE COLD FRONT WAS ANALYZED
ALONG AND NEAR A LINE FROM STILLWATER TO OKLAHOMA CITY TO BRIDGE
CREEK AND BACK WESTWARD TOWARDS BESSIE AND ERICK. STRONG WINDS WERE
ALSO NOTED ACROSS PORTIONS OF EXTREME SOUTHWESTERN OKLAHOMA NEAR
HOLLIS..ALTUS...AND GRANDFIELD WITH WIND GUSTS APPROACHING 35 TO 40
MPH.

THUNDERSTORMS WILL CONTINUE TO MOVE TOWARDS THE EAST
NORTHEAST INTO THE EVENING HOURS AHEAD OF THE DRYLINE. WITH STRONG
SHEAR AND SUFFICIENT INSTABILITY IN PLACE...MOST STORMS WILL BECOME
SEVERE QUICKLY AND WILL HAVE THE POTENTIAL TO PRODUCE VERY LARGE
HAIL...STRONG DAMAGING WINDS AND TORNADOES. THE COLD FRONT WILL
OVERTAKE THE DRYLINE FROM NORTH TO SOUTH AS THE EVENING PROGRESSES.
A FEW ADDITIONAL THUNDERSTORMS CANNOT BE RULED OUT AS THIS PROCESS
OCCURS. STRONG WESTERLY AND NORTHWESTERLY WINDS WILL ELEVATE THE
WILDFIRE POTENTIAL INTO THE EARLY EVENING HOURS. A FEW AREAS OF
BLOWING DUST WILL ALSO BE POSSIBLE ACROSS SOUTHWESTERN OKLAHOMA.

$$

BAIN/WR

FPUS74 KOUN 150115
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
815 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-150230-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
815 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...

AT MID EVENING...AN OUTBREAK OF SUPERCELL STORMS...INCLUDING A FEW
TORNADOES...WAS OCCURRING IN SOUTHEAST OKLAHOMA. UNSTABLE AIR WAS
LOCATED EAST OF A DRYLINE FROM NEAR MARIETTA TO PAULS VALLEY TO
CHANDLER. A PACIFIC COLD FRONT WAS OVERTAKING THE DRYLINE... LEADING
TO STRONG LIFT...AND DEVELOPMENT OF NEW SEVERE STORMS. THE THREAT OF
SEVERE WEATHER WILL BE FOCUSED IN SOUTHEAST OKLAHOMA THROUGH 11 PM.
OTHER STRONG STORMS...PRODUCING MAINLY HAIL...WILL AFFECT THE AREA
NORTH OF ADA...AND EAST OF OKLAHOMA CITY.

MEANWHILE...A SECOND...STRONGER COLD FRONT WAS MOVING RAPIDLY
THROUGH OKLAHOMA AND NORTH TEXAS...EXTENDING FROM BENJAMIN TO LAWTON
TO GUTHRIE. BEHIND THIS FRONT...WINDS WILL TURN TO THE NORTHWEST AT
SPEEDS OF 20 TO 25 MPH...WITH GUSTS OF 35 MPH. THE UNSETTLED WEATHER
WAS OCCURRING AS LOW PRESSURE DEEPENS AT THE SURFACE AND ALOFT. THIS
INTENSE LOW PRESSURE WILL RESULT IN VERY STRONG AND GUSTY WINDS
THROUGHOUT THE REGION FROM LATE TONIGHT INTO MUCH OF FRIDAY.

$$

BURKE

FPUS74 KOUN 150319
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
1020 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-150500-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
1019 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...

LATE THIS EVENING...A COLD FRONT AND MID LEVEL TROUGH WERE SWEEPING
MOIST AND UNSTABLE AIR OUT OF SOUTHEAST OKLAHOMA. ONE FINAL SQUALL
LINE WILL AFFECT BRYAN AND ATOKA COUNTIES THROUGH 1115 PM. SEVERE
WEATHER REMAINS POSSIBLE WITHIN THIS SQUALL LINE.

ELSEWHERE...THE WEATHER WAS DRY AND BECOMING WINDY. ONE DEEP LOW
PRESSURE CENTER WAS LOCATED IN KANSAS. ANOTHER LOW PRESSURE CENTER
WAS DEVELOPING ALONG A COLD FRONT IN SOUTHEAST OKLAHOMA. THIS WILL
LIFT INTO SOUTHEAST KANSAS BY MORNING. AROUND THIS BROAD AREA OF
INTENSE LOW PRESSURE...NORTHWEST WINDS WILL USHER COOLER AIR INTO
OKLAHOMA AND NORTH TEXAS. LATE THIS EVENING...WIND SPEEDS HAD
ALREADY INCREASED TO BETWEEN 15 AND 25 MPH. IN WESTERN
OKLAHOMA...GUSTS OVER 35 TO 40 MPH WERE OBSERVED. WINDS WILL BECOME
VERY STRONG BY FRIDAY MORNING.

AT 10 PM...TEMPERATURES RANGED FROM THE LOW 70S IN SOUTHERN
OKLAHOMA...TO MIDDLE 50S AROUND HOBART...GUTHRIE...AND PONCA CITY...
TO MIDDLE 40S IN NORTHWEST OKLAHOMA. TEMPERATURES WILL FALL ANOTHER
TEN DEGREES OVERNIGHT. SOME LIGHT RAIN SHOWERS ARE ALSO EXPECTED
NEAR THE KANSAS BORDER AFTER MIDNIGHT.

$$

BURKE

FPUS74 KOUN 150451
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
1150 CDT THU APR 14 2011

OKZ004>048-050>052-TXZ083>090-150700-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
1151 PM CDT THU APR 14 2011

.REGIONAL WEATHER DISCUSSION...

BY LATE EVENING SEVERE STORMS HAD PUSHED OUT OF SOUTHEAST OKLAHOMA.
BROAD LOW PRESSURE FROM KANSAS TO NORTH TEXAS...WILL GRADUALLY PULL
COOLER AND DRIER AIR INTO THE ENTIRE REGION. AROUND MIDNIGHT...THE
LEADING EDGE OF SOME OF THE COOLER AIR EXTENDED FROM NEAR WICHITA
FALLS UP THROUGH PURCELL AND CHANDLER.

AS LOW PRESSURE REMAINS STRONG...AND HIGH PRESSURE APPROACHES FROM
THE ROCKIES...THE GRADIENT WILL BECOME UNUSUALLY STRONG...RESULTING
IN STRONG WINDS...EVEN DURING THE MORE STABLE NIGHTTIME HOURS. WIND
SPEEDS HAD ALREADY INCREASED TO BETWEEN 20 AND 25 MPH. IN WESTERN
OKLAHOMA...GUSTS OVER 35 TO 40 MPH WERE OBSERVED. WINDS WILL BECOME
EVEN STRONGER BY FRIDAY MORNING...ESPECIALLY IN WESTERN OKLAHOMA.

AT MIDNIGHT...TEMPERATURES RANGED FROM THE LOW 60S IN SOUTHERN
OKLAHOMA...TO LOW 50S AROUND HOBART...GUTHRIE...AND PONCA CITY...
TO MIDDLE 40S IN NORTHWEST OKLAHOMA. TEMPERATURES WILL FALL ANOTHER
FIVE TO TEN DEGREES OVERNIGHT. SOME LIGHT RAIN SHOWERS ARE ALSO
EXPECTED NEAR THE KANSAS BORDER.

$$

BURKE

FPUS74 KOUN 150812
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
312 AM CDT FRI APR 15 2011

OKZ004>048-050>052-TXZ083>090-151100-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
312 AM CDT FRI APR 15 2011

.REGIONAL WEATHER DISCUSSION...

AS LOW PRESSURE REMAINS STRONG...AND HIGH PRESSURE APPROACHES FROM
THE ROCKIES...THE GRADIENT WILL BECOME UNUSUALLY STRONG...RESULTING
IN STRONG WINDS...EVEN DURING THE MORE STABLE NIGHTTIME HOURS. WIND
SPEEDS HAD ALREADY INCREASED TO BETWEEN 20 AND 30 MPH ACROSS MUCH OF
CENTRAL AND WESTERN OKLAHOMA. IN WESTERN OKLAHOMA... GUSTS OF 40 TO
50 MPH WERE OBSERVED. WINDS WILL BECOME EVEN STRONGER LATER THIS
MORNING... ESPECIALLY IN WESTERN OKLAHOMA.

THE STRONG WINDS ALONG WITH TEMPERATURES IN THE 40S ACROSS NORTHWEST
OKLAHOMA WILL CREATE WIND CHILLS IN THE UPPER 20S AND LOWER 30S.

$$

30

FPUS74 KOUN 151129
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
629 AM CDT FRI APR 15 2011

OKZ004>048-050>052-TXZ083>090-151300-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
629 AM CDT FRI APR 15 2011

.REGIONAL WEATHER DISCUSSION...

A STRONG STORM SYSTEM OVER KANSAS WILL RESULT IN VERY STRONG WINDS
THROUGHOUT THE DAY TODAY ACROSS OKLAHOMA AND WESTERN NORTH TEXAS.
SUSTAINED WIND SPEEDS OF 30 TO 40 MPH WITH GUSTS OF 50 MPH WILL BE
LIKELY ACROSS MUCH OF CENTRAL AND WESTERN OKLAHOMA AND WESTERN NORTH
TEXAS... WITH SOME GUSTS TO 60 MPH POSSIBLE ACROSS WESTERN OKLAHOMA.

THE STRONG WINDS ALONG WITH TEMPERATURES IN THE 40S ACROSS MUCH OF
CENTRAL AND NORTHERN OKLAHOMA WILL CREATE WIND CHILLS IN THE UPPER
20S AND 30S THIS MORNING. OTHERWISE A FEW RAIN SHOWERS WILL BE
POSSIBLE ACROSS NORTHERN OKLAHOMA THIS MORNING AS ACTIVITY MOVES
SOUTH OUT OF KANSAS ON THE BACKSIDE OF THE STORM SYSTEM TO OUR
NORTH.

$$

30

FPUS74 KOUN 151341
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
841 AM CDT FRI APR 15 2011

OKZ004>048-050>052-TXZ083>090-151500-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
841 AM CDT FRI APR 15 2011

.REGIONAL WEATHER DISCUSSION...

A STRONG STORM SYSTEM OVER KANSAS WILL RESULT IN VERY STRONG WINDS
THROUGHOUT THE DAY TODAY ACROSS OKLAHOMA AND WESTERN NORTH TEXAS.
SUSTAINED WIND SPEEDS OF 30 TO 40 MPH WITH GUSTS AROUND 50 MPH WILL
BE LIKELY ACROSS MUCH OF CENTRAL AND WESTERN OKLAHOMA AND WESTERN
NORTH TEXAS... WITH SOME GUSTS TO 60 MPH POSSIBLE ACROSS WESTERN
OKLAHOMA.

THE STRONG WINDS...ALONG WITH TEMPERATURES IN THE 40S ACROSS MUCH OF
CENTRAL AND NORTHERN OKLAHOMA...WILL CREATE WIND CHILL TEMPERATURES
IN THE 30S THIS MORNING. OTHERWISE...A FEW LIGHT RAIN OR LIGHT SNOW
SHOWERS WILL BE POSSIBLE ACROSS NORTHERN OKLAHOMA THIS MORNING.

$$

FPUS74 KOUN 151502
NOWOUN

SHORT TERM FORECAST
NATIONAL WEATHER SERVICE NORMAN OK
1002 AM CDT FRI APR 15 2011

OKZ004>048-050>052-TXZ083>090-151700-
ALFALFA-ARCHER-ATOKA-BAYLOR-BECKHAM-BLAINE-BRYAN-CADDO-CANADIAN-
CARTER-CLAY-CLEVELAND-COAL-COMANCHE-COTTON-CUSTER-DEWEY-ELLIS-FOARD-
GARFIELD-GARVIN-GRADY-GRANT-GREER-HARDEMAN-HARMON-HARPER-HUGHES-JACKS
ON-JEFFERSON-JOHNSTON-KAY-KINGFISHER-KIOWA-KNOX-LINCOLN-LOGAN-LOVE-
MAJOR- MARSHALL-MCCLAIN-MURRAY-NOBLE-OKLAHOMA-PAYNE-PONTOTOC-
POTTAWATOMIE-ROGER MILLS-SEMINOLE-STEPHENS-TILLMAN-WASHITA-WICHITA-
WILBARGER-
1002 AM CDT FRI APR 15 2011

.REGIONAL WEATHER DISCUSSION...

STRONG WINDS ARE AFFECTING WESTERN NORTH TEXAS...WESTERN AND CENTRAL
OKLAHOMA THIS MORNING. THROUGH NOON...WINDS IN CENTRAL OKLAHOMA WILL
BE FROM THE NORTHWEST AT SPEEDS FROM 25 TO 35 MPH WITH GUSTS TO
AROUND 45 MPH. IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS...WINDS
WILL BLOW FROM THE NORTHWEST AT SPEEDS FROM 35 TO 45 MPH...WITH
FREQUENT GUSTS OVER 50 MPH. OCCASIONAL GUSTS TO 60 MPH WILL BE
MEASURED.

DRIVERS ALONG EAST TO WEST ORIENTED ROADWAYS IN WESTERN OKLAHOMA AND
WESTERN NORTH TEXAS SHOULD BE PREPARED FOR VERY STRONG CROSSWINDS.
THOSE TRAVELING BY MOTORCYCLE OR DRIVING HIGH PROFILE VEHICLES ALONG
INTERSTATE 40 IN WESTERN OKLAHOMA SHOULD BE AWARE THAT WIND GUSTS OF
THIS MAGNITUDE WILL MAKE TRAVEL DIFFICULT AND DANGEROUS.

SOME LIGHT RAIN WILL OCCUR IN NORTHERN AND NORTH CENTRAL OKLAHOMA
THIS MORNING. OTHERWISE...THE SKY WILL BE CLEAR IN WESTERN NORTH
TEXAS AND PORTIONS OF SOUTHERN OKLAHOMA...AND WILL BE CLOUDY
ELSEWHERE. TEMPERATURES WILL RISE INTO THE 50S IN NORTHERN
OKLAHOMA...AND THE 60S IN SOUTHERN OKLAHOMA AND WESTERN NORTH
TEXAS...BY NOON.

$$

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