

928 

WWUS20 KWNS 040732

SEL7

SPC WW 040732

ALZ000-FLZ000-MSZ000-041300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 237

NWS STORM PREDICTION CENTER NORMAN OK

235 AM CDT MON MAY 4 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ALABAMA

       WESTERN FLORIDA PANHANDLE

       FAR SOUTHEAST MISSISSIPPI



EFFECTIVE THIS MONDAY MORNING FROM 235 AM UNTIL 800 AM 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 40 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTHWEST OF MOBILE

ALABAMA TO 45 MILES NORTH NORTHEAST OF CRESTVIEW FLORIDA.  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.



DISCUSSION...CLUSTER OF ELEVATED SUPERCELLS NEAR THE SRN MS/AL

BORDER AT 07Z SHOULD PERSIST/INCREASE AS THEY MOVE NEAR

MOIST/UNSTABLE GULF AIR RESIDING SOUTH OF SURFACE FRONT EXTENDING

W-E JUST NORTH OF THE COAST.  SHEAR REMAINS MORE THAN ADEQUATE FOR

SUPERCELLS...AND COULD SUPPORT AN ISOLATED TORNADO OR TWO EARLY THIS

MORNING NEAR THE FRONT. THREATS OF LARGE HAIL AND ISOLATED DAMAGING

WINDS ARE ALSO EXPECTED.



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 27025.





...EVANS

