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WWUS20 KWNS 221957

SEL8

SPC WW 221957

GAZ000-NCZ000-SCZ000-230300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 728

NWS STORM PREDICTION CENTER NORMAN OK

400 PM EDT TUE JUL 22 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       LARGE PART OF WESTERN AND NORTHERN GEORGIA

       MUCH OF WESTERN NORTH CAROLINA

       PARTS OF WESTERN SOUTH CAROLINA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL

1100 PM EDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES WEST

SOUTHWEST OF LA GRANGE GEORGIA TO 45 MILES EAST NORTHEAST OF

HICKORY NORTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 724...WW 725...WW

726...WW 727...



DISCUSSION...VERY WARM AND UNSTABLE AIR MASS WILL SUPPORT

DEVELOPMENT OF STRONG/SEVERE THUNDERSTORMS ACROSS THE WATCH AREA.

WITH 30-35 T/TD SPREADS AND MLCAPES TO 2000 J/KG...DAMAGING WINDS

WILL BE MOST LIKELY SEVERE ASSOCIATED WITH ANY STORM.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27015.





...HALES

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