MESOSCALE DISCUSSION 0542
   NWS STORM PREDICTION CENTER NORMAN OK
   0636 PM CDT MON APR 20 2009
   
   AREAS AFFECTED...EXTREME SERN GA THROUGH ERN SC AND ERN NC
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 179...
   
   VALID 202336Z - 210100Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 179
   CONTINUES.
   
   THREAT FOR ISOLATED LARGE HAIL AND DAMAGING WIND WILL PERSIST FOR
   ANOTHER HOUR OR TWO...MAINLY ACROSS ERN NC PORTION OF WW. OVERALL
   TREND SHOULD BE FOR THREAT TO BECOME MORE LIMITED WITH TIME.
   
   WIDELY SCATTERED CONVECTION CONTINUES DEVELOPING ALONG AND EAST OF A
   PRE-FRONTAL CONVERGENCE BOUNDARY FROM SERN GA THROUGH ERN SC AND ERN
   NC. LITTLE OR NO LIGHTNING REMAINS WITH ACTIVITY OVER ERN SC WHERE
   THE BOUNDARY LAYER HAS BEEN STABILIZED BY PREVIOUS CONVECTION...AND
   STORMS RECENTLY DEVELOPING ALONG SC PORTION OF THE BOUNDARY CONTINUE
   TO STRUGGLE. PRIMARY SEVERE THREAT WILL LIKELY REMAIN ACROSS ERN NC
   NEXT HOUR OR SO...BUT THREAT IN THIS AREA IS ALSO EXPECTED TO BECOME
   INCREASINGLY MARGINAL WITH THE ONSET OF NOCTURNAL COOLING AND AS THE
   LOW LEVEL JET BEGINS TO MOVE OFFSHORE.
   
   ..DIAL.. 04/20/2009
   
   
   ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...
   
   LAT...LON   35987575 35037608 34547762 33727895 32657982 31668109
               32208146 34917874 35867729 35987575