

000 

WWUS20 KWNS 140639

SEL7

SPC WW 140639

TXZ000-141400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 317

NWS STORM PREDICTION CENTER NORMAN OK

140 AM CDT WED MAY 14 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTH CENTRAL TEXAS



EFFECTIVE THIS WEDNESDAY MORNING FROM 140 AM UNTIL 900 AM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH OF HONDO TEXAS

TO 35 MILES WEST OF COTULLA TEXAS.  FOR A COMPLETE DEPICTION OF

THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS

WOU7).



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...CONTINUE...WW 315...WW 316...



DISCUSSION...TSTMS/SUPERCELLS FORMING IN VERY MOIST UPSLOPE FLOW

NEAR DRT EXPECTED TO MOVE/DEVELOP GENERALLY ENE ALONG THE ESCARPMENT

THROUGH LATER THIS MORNING.  BACKED NEAR-SFC FLOW AND SMALL TEMP-DEW

POINT SPREADS SUGGEST POTENTIAL FOR TORNADOES IN ADDITION TO VERY

LARGE HAIL AND LOCALLY DMGG WIND.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 25025.





...CORFIDI

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