Friday, April 25, 2008

Severe Thunderstorm Watch 233

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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