

000 

WWUS20 KWNS 032246

SEL2

SPC WW 032246

TXZ000-040700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 342

NWS STORM PREDICTION CENTER NORMAN OK

545 PM CDT SUN JUN 3 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHEAST TEXAS



EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 545 PM

UNTIL 200 AM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 75 MILES WEST

NORTHWEST OF AUSTIN TEXAS TO 35 MILES EAST NORTHEAST OF HOUSTON

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 337...WW 338...WW

339...WW 340...WW 341...



DISCUSSION...ISOLATED INTENSE THUNDERSTORMS ARE OCCURRING ALONG WEAK

FRONT EXTENDING ACROSS CENTRAL AND SOUTHEAST TX.  THESE STORMS MAY

POSE A RISK OF LARGE HAIL AND DAMAGING WINDS EARLY THIS EVENING.

LARGE COMPLEX OF THUNDERSTORMS IS INCREASING IN INTENSITY NEAR SJT

AND IS EXPECTED TO SURGE SOUTHEASTWARD ALONG BOUNDARY ACROSS WATCH

AREA THROUGH MIDNIGHT.  VERY MOIST/UNSTABLE AIRMASS...STRONG WINDS

ALOFT...AND CONVERGENCE ALONG BOUNDARY SUGGEST THE POTENTIAL FOR

WIDESPREAD DAMAGING WINDS AND HAIL WITH THESE STORMS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

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

MOTION VECTOR 28035.





...HART

