MESOSCALE DISCUSSION 1407
   NWS STORM PREDICTION CENTER NORMAN OK
   0724 PM CDT SUN JUN 26 2011
   
   AREAS AFFECTED...CNTRL AL...NRN GA...NRN SC INTO S-CNTRL NC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 555...556...
   
   VALID 270024Z - 270130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   555...556...CONTINUES.
   
   SEVERE THREAT WILL CONTINUE TO DIMINISH WITH LOSS OF DAYTIME HEATING
   ACROSS WW 555 AND 556...HOWEVER ISOLATED SEVERE WITH DAMAGING WIND
   GUSTS WILL CONTINUE TO BE POSSIBLE OVER THE NEXT HOUR OR TWO. IT IS
   NOT ANTICIPATED THAT ANY LOCAL EXTENSION IN TIME WILL BE NEEDED
   BEYOND THE 01Z EXPIRATION TIME FOR EITHER WATCH.
   
   23Z MESOANALYSIS INDICATED THE AIR MASS AHEAD OF THE CLUSTER OF
   STORMS FROM CNTRL AL INTO NRN GA WAS BECOMING INCREASINGLY CAPPED
   WITH LOSS OF DAYTIME HEATING. ADDITIONALLY...DEEP LAYER FLOW
   CONTINUES TO WEAKEN FURTHER SOUTH INTO SRN AL AND CNTRL GA.
   ADDITIONALLY...MLCAPE VALUES RAPIDLY FALL OFF FROM AROUND 1500-2000
   J/KG IN THE VICINITY OF ONGOING CONVECTION TO AROUND 500-1000 J/KG
   SOUTH AND EAST OF THESE STORMS. THIS ENVIRONMENT WILL ONLY CONTINUE
   TO BECOME LESS SUPPORTIVE OF SEVERE CONVECTION INTO THE EVENING
   HOURS.
   
   ..LEITMAN.. 06/27/2011
   
   
   ATTN...WFO...RAH...CAE...GSP...FFC...TAE...BMX...
   
   LAT...LON   35598198 35598032 34178053 31748522 32288678 33658556
               35598198