MESOSCALE DISCUSSION 0319
   NWS STORM PREDICTION CENTER NORMAN OK
   0219 PM CDT SAT MAR 28 2009
   
   AREAS AFFECTED...NRN FL...SERN GA...COASTAL SC
   
   CONCERNING...TORNADO WATCH 89...90...
   
   VALID 281919Z - 282015Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 89...90...CONTINUES.
   
   LARGE MCS HAS EVOLVED OVER MUCH OF GA/NRN FL/SC WHERE WELL DEFINED
   MVC IS NOW PROGRESSING ACROSS ABBEVILLE COUNTY SC.  AIRMASS IS NOT
   PARTICULARLY UNSTABLE OVER SC WITH MLCAPE VALUES GENERALLY LESS THAN
   500 J/KG...THOUGH MORE REASONABLE VALUES...ON THE ORDER OF 1000
   J/KG...ARE NOTED AHEAD OF LEAD ACTIVITY OVER GA INTO NRN FL.  WITH
   LLJ FOCUSED ACROSS THIS REGION IT SEEMS REASONABLE THAT THIS
   EXPANSIVE CONVECTIVE CLUSTER WILL CONTINUE TO STEADILY PROGRESS
   ENEWD WHILE TRAILING FEEDER CELLS INITIATE OVER THE NERN GULF OF
   MEXICO/FL PANHANDLE BEFORE MERGING INTO LARGER PRECIP SHIELD. 
   SEVERAL EMBEDDED SUPERCELL STRUCTURES ARE NOTED ALONG SRN FRINGE OF
   BROADER PRECIP AND THIS APPEARS TO BE THE MOST LIKELY ZONE FOR
   POSSIBLE ISOLATED TORNADOES FOR THE NEXT SEVERAL HOURS FROM THE
   CNTRL FL PANHANDLE INTO SRN GA.
   
   ..DARROW.. 03/28/2009
   
   
   ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...
   
   LAT...LON   29578606 31268453 32298179 33568075 33207934 31498039
               30488253 29108476 29578606