

000 

WWUS20 KWNS 040031

SEL4

SPC WW 040031

TXZ000-040700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 344

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT SUN JUN 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL TEXAS



EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 735 PM UNTIL

200 AM 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 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTHWEST

OF DEL RIO TEXAS TO 50 MILES SOUTHEAST OF NEW BRAUNFELS TEXAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 338...WW 339...WW

341...WW 342...WW 343...



DISCUSSION...LARGE SEVERE STORMS OVER FAR NORTHERN MEXICO WILL TRACK

EASTWARD ACROSS RIO GRANDE INTO CENTRAL TX THIS EVENING.

MEANWHILE...SEVERE MCS NEAR JCT WILL ALSO SPREAD SOUTHEASTWARD TO

THE NORTH AND EAST OF SAT.  VERY UNSTABLE AIR MASS AND STRONG DEEP

LAYER VERTICAL SHEAR SUGGEST THAT LARGE HAIL AND DAMAGING WINDS ARE

POSSIBLE WITH ALL OF THIS ACTIVITY.



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 27035.





...HART

