MESOSCALE DISCUSSION 0776
   NWS STORM PREDICTION CENTER NORMAN OK
   0247 PM CDT FRI MAY 13 2011
   
   AREAS AFFECTED...NERN AL...NRN GA...ERN TN...WRN NC...SWRN VA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 297...
   
   VALID 131947Z - 132045Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 297
   CONTINUES.
   
   RECENT RADAR AND SATELLITE TRENDS INDICATE A GENERAL WEAKENING OF
   CONVECTION ALONG EWD PROPAGATING COLD POOL AS IT MOVES ACROSS ERN TN
   AND NRN GA. ISOLATED STRONG TO SVR THUNDERSTORMS HAVE DEVELOPED
   ALONG THE SRN FLANK OF THE LINE ACROSS NRN GA...AS WELL AS AHEAD OF
   THE PRIMARY COLD POOL OVER NERN TN. THE ENVIRONMENT REMAINS
   SUPPORTIVE OF ADDITIONAL DEVELOPMENT OF STRONG-SVR THUNDERSTORMS
   WITH MLCAPE VALUES RANGING BTWN 1000-1500 J/KG...BUT COVERAGE SHOULD
   REMAIN ISOLATED AS MORE SIGNIFICANT DEEP-LAYER FORCING REMAINS
   POSITIONED FARTHER WWD. MODEST EFFECTIVE SHEAR VALUES /NEAR 20 KTS/
   WILL TEND TO LIMIT THUNDERSTORM ORGANIZATION...BUT A THREAT FOR SVR
   HAIL AND DMGG WIND GUSTS WILL PERSIST WITH THE STRONGEST STORMS
   ACROSS ROUGHLY THE ERN HALF OF THE WATCH AREA.
   
   ..ROGERS.. 05/13/2011
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...FFC...BMX...
   
   LAT...LON   33718372 33758546 37298299 37268053 33718372