MESOSCALE DISCUSSION 0539
   NWS STORM PREDICTION CENTER NORMAN OK
   0355 PM CDT MON APR 20 2009
   
   AREAS AFFECTED...SE GA...ERN SC...ERN NC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 179...
   
   VALID 202055Z - 202230Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 179
   CONTINUES.
   
   THE THREAT OF SEVERE HAIL AND WIND GUSTS CONTINUES ACROSS THE WW. AN
   ISOLATED TORNADO CANNOT BE RULED OUT ACROSS FAR NRN PORTIONS OF THE
   WW...ACROSS NERN NC.
   
   STORMS CONTINUE TO REGENERATE ALONG THE COAST...EXTENDING NWD INTO
   ERN NC. SURFACE ANALYSIS SHOWS THAT STRONG HEATING HAS MIXED
   DEWPOINTS DOWN INTO THE 50S F IN MANY LOCATIONS...WITH A FEW LOWER
   60S F OVER ERN NC AND ALONG THE SC/GA COAST.
   
   RELATIVELY DRY AIR ALOFT WILL CONTINUE TO STREAM NEWD ATOP THE PBL.
   VISIBLE IMAGERY SHOWS THAT CU FIELDS ARE DWINDLING AWAY FROM ONGOING
   STORMS. WHILE NEW CORES MAY FORM ALONG OLD OUTFLOW BOUNDARIES
   THROUGH THE REST OF THE AFTERNOON...SOME DECREASE IN STORM COVERAGE
   IS EXPECTED WITH TIME ESPECIALLY OVER SC AND GA.  FARTHER N INTO
   NC...CONDITIONS ARE MORE FAVORABLE FOR SUPERCELLS GIVEN STRONGER LOW
   LEVEL SHEAR AND HIGHER PW VALUES. HAIL AND WIND WILL CONTINUE TO BE
   THE PRIMARY THREATS...HOWEVER...AN ISOLATED TORNADO CANNOT BE RULED
   OUT OVER NERN NC...WHERE LOCALLY BACKED LOW LEVEL WINDS AND HIGHER
   DEWPOINTS ARE RESULTING IN A RELATIVELY FAVORABLE ENVIRONMENT.
   
   ..JEWELL.. 04/20/2009
   
   
   ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...
   
   LAT...LON   35357535 30868088 32178207 36587661 35357535