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000 

WWUS20 KWNS 022256

SEL2

SPC WW 022256

TXZ000-030600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 212

NWS STORM PREDICTION CENTER NORMAN OK

550 PM CDT WED MAY 2 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN TEXAS



EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 550

PM UNTIL 100 AM CDT.



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

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

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF AUSTIN

TEXAS TO 75 MILES WEST SOUTHWEST OF COTULLA TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU2).



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 209...WW 210...WW 211...



DISCUSSION...VERY MOIST AIR WILL CONTINUE TO STREAM NNW INTO ERN

PARTS OF THE TX HILL COUNTRY AND INTO AREA E OF THE TX BIG BEND THIS

EVENING AS APPROACH OF SRN NM UPR LOW ENHANCES LLJ AND MID LEVEL WLY

FLOW INCREASES TO AOA 40 KTS.  GIVEN THIS SETUP...EXISTING STORMS/

SUPERCELLS ALONG NE/SW CONFLUENCE AXIS NOW EXTENDING FROM NEAR JCT

TO NEAR DRT SHOULD SUSTAIN THEMSELVES AS THEY MOVE INTO REGION OF

INCREASING CIN TOWARD THE I-35 CORRIDOR.  POTENTIAL WILL EXIST FOR A

FEW TORNADOES...IN ADDITION TO LARGE HAIL AND BOWING SEGMENTS WITH

HIGH WIND...GIVEN QUALITY OF MOISTURE INFLOW...SLIGHTLY BACKED

NEAR-SFC FLOW AND SEMI-DISCRETE NATURE OF STORMS.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 24035.





...CORFIDI

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