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736 

WWUS20 KWNS 242334

SEL9

SPC WW 242334

ALZ000-FLZ000-CWZ000-250700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 809

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CST THU DEC 24 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ALABAMA

       WESTERN FLORIDA PANHANDLE

       COASTAL WATERS



EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 535 PM

UNTIL 100 AM CST.



TORNADOES...HAIL TO 1 INCH 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 EITHER SIDE OF A LINE FROM 55 MILES WEST SOUTHWEST OF

EVERGREEN ALABAMA TO 30 MILES EAST OF PANAMA CITY FLORIDA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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 808. WATCH NUMBER 808 WILL NOT BE IN EFFECT AFTER

535 PM CST.



DISCUSSION...SQUALL LINE ALONG THE CENTRAL GULF COAST WILL CONTINUE

EWD AS NARROW WEDGE OF GULF MOISTURE/SBCAPE RECOVERS ACROSS THE NERN

GOM.  ISOLATED...DISCRETE STORMS WILL ALSO CONTINUE LIFTING NWD OFF

THE GULF AHEAD OF THE LINE.  LOW LEVEL SHEAR WILL REMAIN VERY STRONG

AND SUPPORT ROTATION WITH THE STRONGER CORES.  TORNADO AND DAMAGING

WIND THREATS WILL LIKELY CONTINUE THROUGH THE EVENING AS SQUALL LINE

PROGRESSES EWD.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.

MEAN STORM MOTION VECTOR 26035.





...EVANS

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