MESOSCALE DISCUSSION 1197
   NWS STORM PREDICTION CENTER NORMAN OK
   0245 AM CDT THU JUN 18 2009
   
   AREAS AFFECTED...GA...SC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 456...
   
   VALID 180745Z - 180945Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 456
   CONTINUES.
   
   MATURE MCS WITH WELL-DEFINED ARC OF INTENSE CONVECTION ALONG LEADING
   EDGE OF DEEP COLD POOL WAS SPREADING SEWD AT 25-30KT ACROSS SERN GA
   AND SRN SC EARLY TODAY. SYSTEM APPEARS TO HAVE SUFFICIENT MOMENTUM
   AND AVAILABLE MASS INFLOW AND INSTABILITY TO SUPPORT OCCASIONALLY
   STRONG WIND GUSTS TO NEAR SEVERE LEVELS ALONG THE LEADING EDGE.
   GREATEST POTENTIAL TO SUSTAIN STRONG UPDRAFTS WILL EXIST ALONG THE
   SWRN FLANK OF THE MCS. THIS AREA WILL BE IN CLOSER PROXIMITY TO
   STRONG INSTABILITY...AND ISENTROPIC LIFT WILL BE ENHANCED WHERE WLY
   LLJ IS DIRECTED ACROSS/ATOP THE EXPANDING COLD POOL. IT IS POSSIBLE
   THAT MARGINAL HAIL WIND THREAT WILL SPREAD OUT OF WATCH 456 AND INTO
   PARTS OF EXTREME SERN GA/NRN FL BEYOND 10Z.
   
   ..CARBIN.. 06/18/2009
   
   
   ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...
   
   LAT...LON   31008213 31438308 31928363 32538396 32958318 32688245
               32958156 33468004 32957893 32297988 31188101 31008213