

791 

WWUS20 KWNS 110120

SEL6

SPC WW 110120

GAZ000-SCZ000-110500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 136

NWS STORM PREDICTION CENTER NORMAN OK

920 PM EDT FRI APR 10 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EXTREME EAST CENTRAL GEORGIA

       CENTRAL SOUTH CAROLINA



EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 920 PM

UNTIL 100 AM EDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE

MILES EAST AND WEST OF A LINE FROM 80 MILES NORTHEAST OF COLUMBIA

SOUTH CAROLINA TO 35 MILES EAST SOUTHEAST OF AUGUSTA 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 134...WW 135...



DISCUSSION...A BOWING LINE OF STORMS...WHICH EVOLVED FROM EARLIER

SUPERCELLS...WILL CONTINUE EWD INTO CENTRAL SC DURING THE NEXT FEW

HOURS WITH A THREAT FOR DAMAGING WINDS AND LARGE HAIL.  INSTABILITY

WEAKENS FROM THE CAE AREA EWD AS A RESULT OF A COOL MARINE BOUNDARY

LAYER...AND THE CONVECTION IS EXPECTED TO WEAKEN BY THE TIME IT

REACHES THE SC COASTAL PLAIN FROM 03-04Z.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 27040.





...THOMPSON

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