THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN ALABAMA NORTHERN GEORGIA WESTERN NORTH CAROLINA NORTHWEST SOUTH CAROLINA MIDDLE AND EASTERN TENNESSEE EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 800 PM EDT. PRIMARY THREATS INCLUDE, SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE SEVERAL VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE A FEW TORNADOES POSSIBLE THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH NORTHWEST OF MUSCLE SHOALS ALABAMA TO 40 MILES EAST NORTHEAST OF CHARLOTTE NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS, 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 305,WW 306, DISCUSSION,POTENTIAL FOR SEVERE THUNDERSTORMS WILL INCREASE ACROSS THE WATCH AREA THROUGH THE AFTERNOON AS A COLD FRONT SUPPORTED BY STRONG UPPER TROUGH SPREADS SOUTHWARD. VERY UNSTABLE AIRMASS NOW SITUATED AHEAD OF THE FRONT AND UPPER SYSTEM WILL FUEL INTENSE THUNDERSTORM UPDRAFTS THAT WILL DEVELOP AMIDST STRONG UNIDIRECTIONAL SHEAR. RESULTING STORMS SHOULD ATTAIN SUPERCELL/SPLITTING CELL CHARACTER WITH LARGE HAIL AND HIGH WINDS LIKELY. WITH TIME,CELL MERGERS OR SOME CLUSTERING MAY SUPPORT THE DEVELOPMENT OF LINE SEGMENTS/LEWPS WITH INCREASING CHANCE FOR MORE WIDESPREAD WIND DAMAGE. AVIATION,A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 32035.
Posted on: Thu, 13 Jun 2013 18:05:27 +0000
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