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000 

WWUS20 KWNS 252025

SEL3

SPC WW 252025

ARZ000-OKZ000-TXZ000-260300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 233

NWS STORM PREDICTION CENTER NORMAN OK

325 PM CDT FRI APR 25 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHWEST ARKANSAS

       FAR SOUTHEAST OKLAHOMA

       NORTHEAST INTO CENTRAL TEXAS



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 325 PM UNTIL

1000 PM CDT.



HAIL TO 2 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 65

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES EAST

NORTHEAST OF DE QUEEN ARKANSAS TO 15 MILES SOUTH SOUTHWEST OF

TEMPLE TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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...CONTINUE...WW 231...WW 232...



DISCUSSION...AIR MASS WILL REMAIN VERY UNSTABLE AHEAD OF

UNSEASONABLY STRONG SURFACE COLD FRONT SHIFTING SSEWD ACROSS WW THIS

EVENING.  SHEAR WILL REMAIN MODEST ON THE NRN END NEAR THE ARKLATEX

AND SUPPORT A FEW LONGER-LIVED CORES...WHILE ACTIVITY SSWWD INTO

CENTRAL TX WILL BE MORE LINEAR/BRIEF-LIVED ALONG THE COLD FRONT.

LARGE HAIL AND ISOLATED DAMAGING WINDS WILL BE PRIMARY SEVERE

THREATS WELL INTO THE EVENING.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 24020.





...EVANS

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