

042 

WWUS20 KWNS 270244

SEL3

SPC WW 270244

TXZ000-271000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 223

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT TUE APR 26 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EAST TEXAS



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 945 PM

UNTIL 500 AM CDT.



TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES NORTH NORTHWEST OF

AUSTIN TEXAS TO 40 MILES EAST NORTHEAST OF LUFKIN TEXAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 220. WATCH NUMBER 220 WILL NOT BE IN EFFECT AFTER

945 PM CDT. CONTINUE...WW 215...WW 217...WW 218...WW 219...WW

221...WW 222...



DISCUSSION...COMPLEX OF SVR TSTMS...INCLUDING SUPERCELLS WITH

TORNADO RISK...WILL CONTINUE TO MOVE SSEWD AS EMBEDDED TSTMS MOVE

EWD.  CONVECTION WILL ENCOUNTER RELATIVELY UNDISTURBED ENVIRONMENT

CHARACTERIZED BY VERY FAVORABLE DEEP-LAYER SHEAR AND 1500-2500 J/KG

MLCAPE.  ACTIVITY ALSO MAY BACKBUILD...BRINGING AT LEAST CONDITIONAL

SVR POTENTIAL TO PORTIONS CENTRAL TX S THROUGH SE OF ACT.

STRENGTHENING CINH WITH TIME SHOULD LIMIT POTENTIAL FOR ACTIVITY TO

REAR-PROPAGATE W OF I-35.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

600. MEAN STORM MOTION VECTOR 28030.





...EDWARDS/HALES

