

804 

WWUS20 KWNS 262159

SEL0

SPC WW 262159

LAZ000-TXZ000-270300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 220

NWS STORM PREDICTION CENTER NORMAN OK

455 PM CDT TUE APR 26 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND WESTERN LOUISIANA

       SOUTH-CENTRAL AND SOUTHEAST TEXAS



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 455 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 4 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 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 10 MILES SOUTHWEST OF AUSTIN

TEXAS TO 30 MILES NORTHEAST OF ALEXANDRIA LOUISIANA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU0).



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 213...WW 214...WW

215...WW 216...WW 217...WW 218...WW 219...



DISCUSSION...DEEP-LAYER WIND PROFILES AND FAVORABLY LARGE BUOYANCY

SUPPORT POTENTIAL FOR SVR TSTMS -- INCLUDING SUPERCELLS ALREADY

OCCURRING OVER SRN PORTIONS WW 215 BETWEEN ACT-LFK AND POTENTIAL

DEVELOPMENT FARTHER W ALONG DRYLINE -- TO AFFECT WW AREA LATE

AFTERNOON THROUGH EVENING.



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

SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE

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

650. MEAN STORM MOTION VECTOR 26030.





...EDWARDS/HALES

