MESOSCALE DISCUSSION 1397
   NWS STORM PREDICTION CENTER NORMAN OK
   1034 AM CDT SUN JUN 26 2011
   
   AREAS AFFECTED...NRN PARTS OF AL/GA INTO THE WRN CAROLINAS
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 261534Z - 261630Z
   
   TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THIS
   AFTERNOON ALONG RESIDUAL COLD POOL/OUTFLOW BOUNDARY WITH ATTENDANT
   RISKS FOR DAMAGING WINDS AND HAIL.  A WW WILL LIKELY BE REQUIRED.
   
   SYNTHESIS OF LATEST SURFACE OBSERVATIONAL AND RADAR DATA INDICATE
   THE LEADING EDGE OF AN EXPANSIVE COLD POOL REMNANT FROM RECENTLY
   DECAYED NOCTURNAL MCS EXTENDING FROM JUST E OF TRI-S OF CHA-S OF HSV
   SLOWLY MOVING SWD/SEWD.  12Z JAN/BMX/FFC SOUNDINGS REVEALED THE
   PRESENCE OF STEEP MIDLEVEL LAPSE RATES /I.E. AROUND 7.5 C PER KM/
   ATOP A MOIST BOUNDARY LAYER...RESULTING IN A MODERATELY TO STRONGLY
   UNSTABLE AIR MASS ALREADY THIS MORNING.  INTENSE DIABATIC WARMING
   WITHIN INFLOW BOUNDARY LAYER WILL SUPPORT FURTHER DESTABILIZATION
   WITH MLCAPE INCREASING TO 3000-3500 J/KG IN AREAS THIS AFTERNOON.
   
   THOUGH REGION WILL REMAIN TO THE S OF STRONGER MID AND UPPER-LEVEL
   WIND FIELD...THERMODYNAMIC ENVIRONMENT WILL BE FAVORABLE FOR UPSCALE
   GROWTH OF STORMS INTO ONE OR MULTIPLE CONVECTIVE COMPLEXES WITH
   ATTENDANT RISKS OF DAMAGING WINDS AND HAIL.
   
   ..MEAD.. 06/26/2011
   
   
   ATTN...WFO...CAE...GSP...MRX...FFC...BMX...HUN...
   
   LAT...LON   33288566 33428686 34108790 34688786 34928751 34738622
               35058463 35568336 35938273 35888228 35448197 34498219
               33788278 33318405 33288566