MESOSCALE DISCUSSION 0293
   NWS STORM PREDICTION CENTER NORMAN OK
   1051 AM CDT SUN MAR 27 2011
   
   AREAS AFFECTED...SE AL...SRN GA...SRN SC...FL PANHANDLE
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 68...
   
   VALID 271551Z - 271715Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 68
   CONTINUES.
   
   RISK OF SURFACE-BASED THUNDERSTORMS WILL INCREASE EARLY THIS
   AFTERNOON WITH THREATS OF VERY LARGE HAIL...ISOLATED TORNADOES AND
   DAMAGING WIND GUSTS.  
   
   MORNING BAND OF ELEVATED STORMS ALONG/N OF THE WAVY FRONT FROM SC
   MIDLANDS WWD INTO CNTRL AL HAS CONTAINED BRIEF SUPERCELL STRUCTURES
   WITH LARGE HAIL.  LATE MORNING MESOANALYSIS SHOWS THAT THE BOUNDARY
   LAYER WAS HEATING STEADILY AHEAD OF THESE STORMS AND THE MORNING
   ACTIVITY WILL BE JOINED BY WARM-SECTOR BANDS/CLUSTERS OF STORMS
   THROUGH THE AFTERNOON.  THESE STORMS WILL BE ROOTED IN THE DEEPENING
   MOIST BOUNDARY LAYER EXHIBITING MLCAPES TO 1500 J/KG WITH A GOOD
   PART OF THAT CAPE PROFILE BELOW MINUS 10 DEG C.  COUPLED WITH 40-50
   KTS OF EFFECTIVE VERTICAL SHEAR...RISKS FOR SUPERCELLS WITH VERY
   LARGE HAIL WILL RESULT.  
   
   THE LOW-LEVEL WIND PROFILE IS GENERALLY VEERED AND UNIDIRECTIONAL IN
   THE WARM SECTOR WITH THE STRONGEST EFFECTIVE SRH LOCATED ACROSS
   PARTS OF SE GA AND SRN SC.  WHILE THE PRIMARY SVR THREAT WILL BE THE
   LARGE HAIL...ISOLATED TORNADOES WILL REMAIN POSSIBLE...PARTICULARLY
   ACROSS THE ABOVE MENTIONED AREAS.
   
   ..RACY.. 03/27/2011
   
   
   ATTN...WFO...CHS...JAX...FFC...TAE...BMX...MOB...
   
   LAT...LON   31538681 32678434 32458257 32508102 32518042 31858048
               31298128 30858226 30518369 30028481 30138553 30438670
               30938710 31538681