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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 131

NWS STORM PREDICTION CENTER NORMAN OK

1050 PM CDT MON APR 2 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       A SMALL PART OF SOUTHWEST KANSAS

       WESTERN OKLAHOMA

       NORTHWEST TEXAS



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1050 PM

UNTIL 400 AM CDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHWEST OF

ALVA OKLAHOMA TO 70 MILES SOUTH OF WICHITA FALLS TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 129. WATCH NUMBER 129 WILL NOT

BE IN EFFECT AFTER 1050 PM CDT.



DISCUSSION...A SQUALL LINE WILL CONTINUE TO MOVE EWD/NEWD ACROSS WRN

OK WITH A CONTINUED RISK FOR DAMAGING WINDS/LARGE HAIL FOR THE NEXT

FEW HOURS.  THE SEVERE RISK IS EXPECTED TO DIMINISH SOME AS THE

STORMS APPROACH CENTRAL OK AND ENCOUNTER A REMNANT OUTFLOW AIR MASS

AND WEAKER INSTABILITY.  FARTHER N INTO KS...THERE WILL BE SOME RISK

FOR ISOLATED LARGE HAIL WITH THE WARM SECTOR STORMS MOVING NEWD FROM

NW OK...AND THIS RISK WILL DIMINISH AS THE COLD FRONT IN KS

UNDERCUTS THE STORMS.  FARTHER S IN TX...AN ISOLATED SUPERCELL IS

MOVING INTO YOUNG COUNTY AND LARGE HAIL WILL BE POSSIBLE WITH THIS

STORM.  THOUGH NO STORMS ARE PRESENT ATTM TO THE SW OF THE YOUNG

COUNTY STORM...THE CENTRAL/NW TX AREA WILL BE MONITORED FOR

ADDITIONAL STORM DEVELOPMENT OVERNIGHT ALONG THE COLD FRONT/DRYLINE.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 24030.





...THOMPSON

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