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000 

WWUS20 KWNS 121823

SEL8

SPC WW 121823

GAZ000-NCZ000-SCZ000-130200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 388

NWS STORM PREDICTION CENTER NORMAN OK

225 PM EDT TUE JUN 12 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       MUCH OF CENTRAL AND NORTHERN GEORGIA

       MUCH OF CENTRAL AND WESTERN NORTH CAROLINA

       MUCH OF CENTRAL AND WESTERN SOUTH CAROLINA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 225 PM UNTIL

1000 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 90

STATUTE MILES EITHER SIDE OF A LINE FROM 50 MILES EAST OF

GREENSBORO NORTH CAROLINA TO 5 MILES WEST NORTHWEST OF LA GRANGE

GEORGIA.  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 384...WW 385...WW

386...WW 387...



DISCUSSION...WELL DEFINED VORT MAX/MID LEVEL COLD POOL DROPPING SWD

THRU WRN CAROLINAS.  AIR MASS E OF APPALACHIANS DESTABILIZING AND

THUNDERSTORMS SHOULD BECOME COMMON ACROSS MUCH OF WATCH AREA BY

LATER THIS AFTERNOON.  WITH LOW FREEZING LEVELS AND 20-30 KTS OF

SHEAR...LARGE HAIL AND DAMAGING DOWNBURSTS WINDS WILL BECOME MORE

LIKELY IN STRONGER STORMS NEXT SEVERAL HOURS.



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 500. MEAN STORM

MOTION VECTOR 01020.





...HALES

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