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827 

WWUS20 KWNS 241113

SEL2

SPC WW 241113

ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-241800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 92

NWS STORM PREDICTION CENTER NORMAN OK

615 AM CDT SAT APR 24 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST ALABAMA

       FAR WESTERN FLORIDA PANHANDLE

       SOUTH-CENTRAL AND SOUTHEAST LOUISIANA

       SOUTHERN MISSISSIPPI

       COASTAL WATERS



EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 615 AM UNTIL

100 PM CDT.



TORNADOES...HAIL TO 2 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 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST OF LAFAYETTE

LOUISIANA TO 55 MILES EAST NORTHEAST OF MOBILE ALABAMA.  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 89...WW 90...WW 91...



DISCUSSION...TSTMS /SUPERCELLS/ ARE EXPECTED TO INCREASE IN AREAL

COVERAGE THIS MORNING AS DEEP ASCENT IS ENHANCED BY STRENGTHENING

LLJ.  THE COMBINATION OF A MOIST/MODERATELY UNSTABLE AIR MASS AND

STRONG LOW AND DEEP-LAYER SHEAR INDICATE THE THREAT FOR TORNADOES IN

ADDITION TO DAMAGING WINDS AND HAIL.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 22035.





...MEAD

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