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WWUS20 KWNS 021911

SEL9

SPC WW 021911

GAZ000-SCZ000-CWZ000-030200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 789

NWS STORM PREDICTION CENTER NORMAN OK

210 PM EST WED DEC 2 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EAST CENTRAL AND SOUTHEAST GEORGIA

       CENTRAL AND SOUTHERN SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 210 PM UNTIL

900 PM 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 80 STATUTE

MILES EITHER SIDE OF A LINE FROM 55 MILES WEST SOUTHWEST OF

SAVANNAH GEORGIA TO 45 MILES EAST NORTHEAST OF ORANGEBURG SOUTH

CAROLINA.  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...CONTINUE...WW 788...



DISCUSSION...A MESOLOW/MCV IN CENTRAL GA WILL TRACK NEWD ALONG A

RETREATING WARM FRONT INTO CENTRAL SC THROUGH THE AFTERNOON...AND

ONGOING PRE-FRONTAL STORMS WILL CONTINUE TO SPREAD NEWD OVER SE GA

INTO SRN SC.  THE MOIST AND WEAKLY UNSTABLE WARM SECTOR WILL SURGE

NWD ACROSS SC IN ADVANCE OF THE LOW...WHILE LOW-MID LEVEL VERTICAL

SHEAR WILL REMAIN QUITE FAVORABLE FOR EMBEDDED SUPERCELLS CAPABLE OF

PRODUCING A FEW TORNADOES AND DAMAGING WINDS.



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

400. MEAN STORM MOTION VECTOR 24040.





...THOMPSON

