

056 

WWUS20 KWNS 130443

SEL9

SPC WW 130443

TXZ000-130900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 289

NWS STORM PREDICTION CENTER NORMAN OK

1145 PM CDT THU JUN 12 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH CENTRAL TEXAS



* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1145 PM

  UNTIL 400 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF

COTULLA TEXAS TO 15 MILES NORTH NORTHEAST OF VICTORIA TEXAS.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 288...



DISCUSSION...SOME INCREASE IN CONVECTION HAS BEEN NOTED IN THE PAST

HOUR ALONG THE LEADING EDGE OF THE COLD POOL SURGING SEWD PAST THE

SAN ANTONIO AREA...INTO A ZONE OF MID 70S DEWPOINTS AND MODERATE

INSTABILITY EXTENDING SEWD TOWARD THE MIDDLE TX COAST.  THOUGH CAP

STRENGTH WILL INCREASE OVERNIGHT...LIFT ALONG THE GUST FRONT COULD

MAINTAIN THE MCS WITH A RISK FOR AT LEAST ISOLATED DAMAGING WINDS

AND LARGE HAIL FOR A FEW MORE HOURS.



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 550. MEAN STORM

MOTION VECTOR 32030.





...THOMPSON

