MESOSCALE DISCUSSION 1283
   NWS STORM PREDICTION CENTER NORMAN OK
   0549 PM CDT SAT JUN 18 2011
   
   AREAS AFFECTED...CNTRL/SRN GA/SC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 503...
   
   VALID 182249Z - 190015Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 503
   CONTINUES.
   
   DAMAGING WIND THREAT CONTINUES...ESPECIALLY ACROSS THE GA PORTION OF
   THE WW...WHERE A QLCS/ASSOCIATED COLD POOL OVER NRN GA SHOULD EVOLVE
   SEWD DURING THE NEXT SEVERAL HOURS. THIS WILL LIKELY RESULT IN AN
   ADDITIONAL WW ISSUANCE ACROSS PORTIONS OF SC/GA THIS EVENING.
   
   THE QLCS ACROSS NRN GA IS IN THE PROCESS OF CONGLOMERATION WITH
   ADDITIONAL TSTMS THAT FORMED AHEAD OF THE LINE...WHICH SHOULD
   FURTHER STRENGTHEN THE COLD POOL AS IT LIKELY TRACKS INTO CNTRL
   GA/SC. DOWNSTREAM AIR MASS REMAINS QUITE UNSTABLE...WITH MLCAPE OF
   2500 TO 3500 J/KG COMMON. THIS DEGREE OF INSTABILITY IN CONJUNCTION
   WITH 30 TO 40 KT NWLYS AT 2 TO 4 KM AGL /AS SAMPLED IN ATLANTA VWP/
   SHOULD REMAIN SUPPORTIVE OF AN ORGANIZED QLCS THROUGH MUCH OF THE
   EVENING.
   
   ..GRAMS.. 06/18/2011
   
   
   ATTN...WFO...ILM...CHS...CAE...GSP...FFC...
   
   LAT...LON   33418527 33708414 34358326 34558287 34568254 34248190
               34168107 34467964 34497919 34397901 34017900 32967984
               32608049 32058141 32108246 32278390 33118508 33418527