

731 

WWUS20 KWNS 312121

SEL9

SPC WW 312121

FLZ000-GAZ000-CWZ000-010400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 99

NWS STORM PREDICTION CENTER NORMAN OK

525 PM EDT TUE MAR 31 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST FLORIDA

       SOUTHEAST GEORGIA

       COASTAL WATERS



EFFECTIVE THIS TUESDAY AFTERNOON FROM 525 PM UNTIL MIDNIGHT EDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH

NORTHWEST OF VALDOSTA GEORGIA TO 5 MILES SOUTHEAST OF BRUNSWICK

GEORGIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 97...WW 98...



DISCUSSION...THUNDERSTORMS CURRENTLY OVER SOUTHERN GA AND THE FL

PANHANDLE WILL DRIFT EASTWARD FOR THE NEXT SEVERAL HOURS...AFFECTING

THE WATCH AREA.  THE AIRMASS IN THIS REGION IS SLOWLY DESTABILIZING

AND WILL LIKELY SUPPORT ISOLATED SEVERE STORMS THROUGH THE EVENING.

LOCALLY DAMAGING WINDS AND HAIL WILL BE THE MAIN THREATS.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM

MOTION VECTOR 26030.





...HART

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