

342 

WWUS20 KWNS 131710

SEL7

SPC WW 131710

GAZ000-NCZ000-TNZ000-VAZ000-132300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 297

NWS STORM PREDICTION CENTER NORMAN OK

110 PM EDT FRI MAY 13 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF NORTHERN GEORGIA

       PARTS OF WESTERN NORTH CAROLINA

       EASTERN TENNESSEE

       PARTS OF WESTERN VIRGINIA



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 110 PM UNTIL 700

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 80

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH

NORTHEAST OF BRISTOL TENNESSEE TO 40 MILES SOUTH OF ROME GEORGIA.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU7).



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...THUNDERSTORMS INTENSIFYING ALONG INSTABILITY LINE

MOVING EWD ACROSS ERN TN INTO NWRN GA.  WITH AIR MASS NOW MDTLY

UNSTABLE AND UNCAPPED...LARGE HAIL AND DAMAGING WINDS WILL BE AN

INCREASING THREAT AS STORMS CONTINUED DEVELOPING ALONG AND AHEAD OF

THE LINE.



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 24025.





...HALES

