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000 

WWUS20 KWNS 270556

SEL9

SPC WW 270556

NCZ000-SCZ000-271400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 869

NWS STORM PREDICTION CENTER NORMAN OK

155 AM EDT WED AUG 27 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN NORTH CAROLINA

       CENTRAL SOUTH CAROLINA



EFFECTIVE THIS WEDNESDAY MORNING FROM 155 AM UNTIL 1000 AM EDT.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST OF

CHARLOTTE NORTH CAROLINA TO 35 MILES SOUTHWEST OF COLUMBIA 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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 868. WATCH NUMBER 868 WILL NOT BE IN EFFECT AFTER

155 AM EDT.



DISCUSSION...ISOLD SUSTAINED STORMS/POSSIBLE SUPERCELLS SHOULD

PERSIST ALONG 35-40 KT SSWLY LLJ OVER THE SC PIEDMONT.  GIVEN DEGREE

OF LOW LVL SHEAR /WITH A SIZABLE DIRECTIONAL COMPONENT/ AND RICH

MOISTURE AVAILABILITY...A LOW PROBABILITY THREAT WILL EXIST FOR

TORNADOES WITH STRONGER CELLS.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 21035.





...CORFIDI

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