

000 

WWUS20 KWNS 240011

SEL1

SPC WW 240011

TXZ000-CWZ000-241200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 741

NWS STORM PREDICTION CENTER NORMAN OK

710 PM CDT WED JUL 23 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTH TEXAS

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 710 PM

UNTIL 700 AM CDT.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES EITHER SIDE OF A LINE FROM 55 MILES NORTHWEST OF ALICE

TEXAS TO 50 MILES SOUTHEAST OF CORPUS CHRISTI TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 735. WATCH NUMBER 735 WILL NOT BE IN EFFECT AFTER

710 PM CDT. CONTINUE...WW 738...WW 739...WW 740...



DISCUSSION...SOME THREAT STILL EXISTS FOR ISOLATED TORNADOES EITHER

WITHIN THE REMNANT EYEWALL OF DOLLY OR WITHIN FEEDER BAND CONVECTION

SPREADING ACROSS THE TX COAST OVER THE NEXT SEVERAL HOURS. STRONGEST

LOW LEVEL SHEAR WILL EXIST NEAR THE CENTER AND NORTH AND EAST OF THE

TRACK FORECAST WHERE 50-70KT LOW LEVEL FLOW EXISTS IN THE LOWEST 1KM

OF THE SURFACE. DESPITE GENERAL LACK OF PERSISTENT UPDRAFTS WITH

LIGHTNING...GENERALLY LOW-TOPPED PERSISTENT CORES WITHIN VERY MOIST

TROPICAL AIR MASS MAY PRODUCE BRIEF TORNADOES THROUGH EARLY

THURSDAY.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 12025.





...CARBIN

