MESOSCALE DISCUSSION 1366
   NWS STORM PREDICTION CENTER NORMAN OK
   1240 PM CDT THU JUN 23 2011
   
   AREAS AFFECTED...PORTIONS SERN VA...CENTRAL-ERN CAROLINAS...ERN GA.
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 231740Z - 232015Z
   
   TSTMS FCST TO DEVELOP AND BECOME SCATTERED TO LOCALLY NUMEROUS IN
   COVERAGE OVER CAROLINAS...WHILE ACTIVITY ALREADY OCCURRING OVER
   PORTIONS CENTRAL/ERN GA MAY MOVE NEWD INTO SRN PARTS OF THIS
   CORRIDOR.  MAIN CONCERN IS DAMAGING DOWNDRAFTS.
   
   VIS IMAGERY SHOWS BAND OF MULTILEVEL CLOUDS...AXIS OF WHICH
   CORRESPONDS TO BKN PRECIP...FROM S-CENTRAL AL NEWD ACROSS NERN SC
   AND WRN NC TO NERN VA AND DC AREA.  ALTHOUGH THIS CLOUD/PRECIP BAND
   IS THINNING AND BECOMING FRAGMENTED...WELL-DEFINED DIFFERENTIAL
   HEATING ZONE IS EVIDENT ON ITS ERN RIM FROM NEAR MCN-RDU-RIC.  ALONG
   AND E OF THAT LINE...EWD TO COASTAL SEA BREEZES...AIR MASS CONTINUES
   TO DESTABILIZE WITH UPPER 60S TO 70S F SFC DEW POINTS...2000-3000
   J/KG MLCAPE AND VERY LITTLE CINH REMAINING.  ACCORDINGLY...VIS
   IMAGERY SHOWS DEEPENING CUMULIFORM CLOUDS IN WSW-ENE STREETS ALIGNED
   WITH BOUNDARY-LAYER WINDS.  FLOW ALSO IS NEARLY UNIDIRECTIONAL WITH
   HEIGHT.  ALTHOUGH THEIR STRONGEST EFFECTS WILL REMAIN N OF
   AREA...SRN FRINGES OF MID-UPPER HEIGHT FALLS AND GRADIENT
   ENHANCEMENTS WILL OCCUR FROM WRN/CENTRAL NC NWD.  THIS SHOULD
   CONTRIBUTE TO SLGT ENHANCEMENT OF DEEP-LAYER SHEAR...WITH EFFECTIVE
   SHEAR INCREASING TO 30-40 KT RANGE OVER PIEDMONT AREAS AND 25-35 KT
   OVER COASTAL PLAIN.
   
   ..EDWARDS.. 06/23/2011
   
   
   ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...GSP...FFC...
   
   LAT...LON   33648212 35507928 37477691 37517630 37157634 36967626
               36927595 36327579 35707576 35027648 34707701 34417754
               34067786 33787799 33907806 33887842 33667893 33097921
               32458037 32038092 32348278 32318359 33648212