MESOSCALE DISCUSSION 1919
   NWS STORM PREDICTION CENTER NORMAN OK
   0502 PM CDT TUE AUG 09 2011
   
   AREAS AFFECTED...COASTAL PLAINS OF SC/GA
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 092202Z - 092300Z
   
   A SHORT-TERM INCREASE IN DAMAGING WIND POTENTIAL MAY OCCUR OVER
   PARTS OF THE COASTAL PLAINS THROUGH 00-01Z. 
   
   A CLUSTER OF TSTMS ALONG THE FFC/CHS CWA BORDER REGION IN SERN GA
   APPEARS TO BE INTENSIFYING AND GROWING UPSCALE AS IT GRADUALLY
   EVOLVES SEWD. AIR MASS IMMEDIATELY DOWNSTREAM OF THIS ACTIVITY TO
   THE COASTAL SEA BREEZE IS RATHER UNSTABLE GIVEN SURFACE TEMPERATURES
   IN THE MIDDLE 90S AND LOWER 70S DEW POINTS. THE STEEP LOW-LEVEL
   LAPSE RATES COUPLED WITH HEAVY PRECIPITATION LOADING IN DOWNDRAFTS
   WILL SUPPORT A CONTINUED RISK FOR ISOLATED DOWNBURSTS. WHILE CHS/CAE
   VWP DATA INDICATE 2-5 KM AGL NWLYS ONLY AROUND 20 KT...THIS SHOULD
   REMAIN MARGINALLY FAVORABLE FOR ORGANIZED CLUSTERS/SHORT-LINE
   SEGMENTS.
   
   ..GRAMS.. 08/09/2011
   
   
   ATTN...WFO...ILM...CHS...CAE...JAX...FFC...
   
   LAT...LON   32038221 32568191 33078109 33398059 33578002 33477961
               33137962 32528066 31708141 31658175 31708210 31818228
               32038221