MESOSCALE DISCUSSION 0534
   NWS STORM PREDICTION CENTER NORMAN OK
   1120 PM CDT SUN APR 19 2009
   
   AREAS AFFECTED...ERN GA AND WRN SC
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 200420Z - 200515Z
   
   THREAT FOR SEVERE STORMS INCLUDING ISOLATED TORNADOES AND DAMAGING
   WIND COULD DEVELOP EWD INTO THE REMAINDER OF NERN GA AND WRN SC
   EARLY THIS MORNING. TRENDS ARE BEING MONITORED FOR A POSSIBLE WW.
   
   DEWPOINTS HAVE INCREASED INTO THE UPPER 50S OVER NERN GA AND WRN SC
   ALONG A 50 KT SSWLY LOW LEVEL JET AXIS THAT WILL CONTINUE TO SHIFT 
   NEWD TOWARD THE SRN APPALACHIANS EARLY THIS MORNING. THOUGH
   INSTABILITY IS LIMITED...THIS PROCESS IS CONTRIBUTING TO SUFFICIENT
   DESTABILIZATION FOR STORMS TO DEVELOP EWD WITH TIME. STORMS HAVE
   INTENSIFIED NEAR THE ERN EDGE OF WW 175 OVER HALL COUNTY IN NE GA.
   THE MARGINAL THERMODYNAMIC ENVIRONMENT APPEARS TO BE A LIMITING
   FACTOR. HOWEVER...GIVEN THE FAVORABLY SHEARED ENVIRONMENT WITH LARGE
   LOW LEVEL HODOGRAPHS...AND SUFFICIENT INSTABILITY FOR NEAR SURFACE
   BASED STORMS...THREAT FOR SUPERCELLS WITH LOW LEVEL MESOCYCLONES AND
   ISOLATED TORNADOES COULD DEVELOP AS FAR EAST AS WRN SC EARLY THIS
   MORNING.
   
   ..DIAL.. 04/20/2009
   
   
   ATTN...WFO...CAE...GSP...FFC...
   
   LAT...LON   34848311 34988221 34338172 33478246 33418320 34218334
               34848311