MESOSCALE DISCUSSION 0507
   NWS STORM PREDICTION CENTER NORMAN OK
   0440 PM CDT THU APR 21 2011
   
   AREAS AFFECTED...SERN GA INTO ERN SC
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 212140Z - 220015Z
   
   SCATTERED STORMS WILL PRODUCE HAIL AND LOCALLY GUSTY WINDS THROUGH
   ABOUT 00Z FROM SERN SC INTO SERN GA.
   
   SEA BREEZE CONTINUES TO CONVECT IN A STEEP LAPSE RATE
   ENVIRONMENT...AND ALSO ALONG BACK DOOR COLD FRONT. WIND SHEAR
   PROFILES ARE WEAK FOR ORGANIZED/LONG LIVED CONVECTION...BUT MODIFIED
   FORECAST SOUNDINGS AND EXPERIMENTAL HAIL TOOLS YIELD HAIL TO ABOUT
   GOLF BALL SIZE WILL BE POSSIBLE EVEN WITH PULSE STORMS. GIVEN STEEP
   LOW LEVEL LAPSE RATES AND 20-30 DEGREE SURFACE T/TD SPREADS...A FEW
   STRONG DOWNBURSTS MAY OCCUR. CONVECTION IS DIURNALLY DRIVEN AND
   SHOULD WEAKEN BY AROUND SUNSET.
   
   ..JEWELL.. 04/21/2011
   
   
   ATTN...WFO...ILM...CHS...CAE...JAX...FFC...
   
   LAT...LON   30918134 30338148 30238186 30478227 31398283 32528280
               32898245 33318145 33388004 33437922 33307905 33117907
               32647988 32258050 31758092 31278122 30918134