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WWUS20 KWNS 251008

SEL1

SPC WW 251008

GAZ000-SCZ000-CWZ000-251700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 811

NWS STORM PREDICTION CENTER NORMAN OK

500 AM EST FRI DEC 25 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST GEORGIA

       SOUTHERN AND CENTRAL SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS FRIDAY MORNING FROM 500 AM UNTIL NOON EST.



TORNADOES...HAIL TO 0.5 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 65 STATUTE

MILES EITHER SIDE OF A LINE FROM 45 MILES SOUTH OF VIDALIA

GEORGIA TO 40 MILES NORTH OF CHARLESTON SOUTH CAROLINA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



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 810...



DISCUSSION...TSTMS NOW IN S CNTRL GA EXPECTED TO MOVE/DEVELOP

RAPIDLY NE THROUGH LATE MORNING AS LARGE SCALE ASCENT STRENGTHENS ON

SE FRINGE OF STRONG/NEG TILT AL SHORT WAVE TROUGH.  COMBINATION OF

INCREASING LOW LVL MOISTURE...50+ KT DEEP WSWLY SHEAR...AND STRONG

LOW LVL DIRECTIONAL SHEAR SUGGEST POTENTIAL FOR A FEW SUPERCELLS

WITH TORNADOES AND SMALL SCALE BOWS WITH DMGG WIND.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 21050.





...CORFIDI

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