Friday, April 25, 2008

Severe Thunderstorm Watch 235

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 235
NWS STORM PREDICTION CENTER NORMAN OK
530 PM CDT FRI APR 25 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL TEXAS
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 530 PM UNTIL
1100 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 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTHWEST
OF JUNCTION TEXAS TO 15 MILES SOUTH OF TEMPLE TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
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
...
WW
233
...
WW 234
...
DISCUSSION...THUNDERSTORMS WILL LIKELY DEVELOP ALONG A SURFACE COLD
FRONT AND WEAK PRE-FRONTAL TROUGH ACROSS CENTRAL TX. LOW-LEVEL FLOW
IS WEAK ACROSS THIS AREA...BUT THE SRN FRINGE OF THE STRONGER MID
LEVEL FLOW AND STRONG INSTABILITY COULD SUPPORT A FEW ORGANIZED
MULTICELL CLUSTERS...AND PERHAPS STORMS WITH MARGINAL SUPERCELL
STRUCTURES. LARGE HAIL SHOULD BE THE PRIMARY SEVERE THREAT GIVEN
THE STEEP MID LEVEL LAPSE RATES...THOUGH A FEW DAMAGING DOWNBURSTS
MAY ALSO OCCUR AS STORM CONGEAL DURING 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 550. MEAN STORM
MOTION VECTOR 32015.
...THOMPSON

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