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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 66

NWS STORM PREDICTION CENTER NORMAN OK

430 PM EDT THU APR 8 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN GEORGIA

       SOUTHWESTERN NORTH CAROLINA

       WESTERN SOUTH CAROLINA



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 430 PM UNTIL

1100 PM EDT.



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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES EAST NORTHEAST OF

SPARTANBURG SOUTH CAROLINA TO 55 MILES SOUTH OF MACON GEORGIA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 65...



DISCUSSION...STORMS WILL LIKELY CONTINUE DEVELOPING ALONG AND AHEAD

OF EWD ADVANCING COLD FRONT INTO THE EVENING. MLCAPE FROM 500 TO

1000 J/KG AND 0-6 KM SHEAR OF 40-50 KT WILL SUPPORT POTENTIAL FOR

LEWPS AND SUPERCELLS WITH DEVELOPING STORMS. IN ADDITION 0-1 KM

STORM RELATIVE HELICITY OF 200-250 M2/S2 WILL CONTRIBUTE TO A THREAT

OF LOW LEVEL MESOCYCLONES AND ISOLATED TORNADOES.



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 24035.





...DIAL

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