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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 761

NWS STORM PREDICTION CENTER NORMAN OK

215 AM EST WED DEC 1 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN NORTH CAROLINA

       EASTERN SOUTH CAROLINA

       CENTRAL AND SOUTHERN VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY MORNING FROM 215 AM UNTIL 900 AM 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 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF RICHMOND

VIRGINIA TO 20 MILES WEST SOUTHWEST OF MYRTLE BEACH 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 760...



DISCUSSION...LINE OF FORCED CONVECTION/ISOLD TSTMS APPEARS TO BE

INCREASING ATTM FROM VICINITY OF DEEPENING SFC LOW IN S CNTRL VA SWD

THROUGH CNTRL NC.  GIVEN VERY WEAK SFC-BASED BUOYANCY...THIS TREND

MOST LIKELY REFLECTS INCREASING UVV ASSOCIATED WITH TN VLY UPR VORT

THAT IS BEGINNING TO TAKE ON A NEGATIVE TILT.  VERY STRONG...LARGELY

UNIDIRECTIONAL WIND FIELD WITH BACKED NEAR-SFC FLOW...AND INCREASING

LOW LVL MOISTURE SUGGEST POTENTIAL FOR ISOLD TORNADOES IN ADDITION

TO SMALL BOWS/MESOVORTICES 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

350. MEAN STORM MOTION VECTOR 21050.





...CORFIDI

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