

386 

WWUS20 KWNS 311732

SEL2

SPC WW 311732

GAZ000-SCZ000-CWZ000-010200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 552

NWS STORM PREDICTION CENTER NORMAN OK

130 PM EDT SAT JUL 31 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       LARGE PART OF NORTHERN AND EASTERN GEORGIA

       MUCH OF WESTERN AND SOUTHERN SOUTH CAROLINA

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 130 PM UNTIL

1000 PM EDT.



HAIL TO 1 INCH 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 115

STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES WEST

NORTHWEST OF ANDERSON SOUTH CAROLINA TO 65 MILES EAST SOUTHEAST

OF SAVANNAH GEORGIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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.



DISCUSSION...BAND OF THUNDERSTORMS NOW CROSSING SRN APPALACHIANS

WILL INCREASE IN INTENSITY AS THEY MOVE SEWD INTO A MDTLY UNSTABLE

AND VERY MOIST AIR MASS.  ADDITIONAL SEVERE STORMS ARE LIKELY IN

ADVANCE OF THE DEVELOPING LINE IN THE UNSTABLE AIR MASS SEWD THRU

ERN GA/SRN SC.  PRIMARY THREAT WILL BE DAMAGING WINDS...PARTICULARLY

WHERE LINE SEGMENT/CLUSTERS CAN DEVELOP ORGANIZED COLD POOLS.



AVIATION...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 550. MEAN STORM MOTION

VECTOR 29025.





...HALES

