MESOSCALE DISCUSSION 1058
   NWS STORM PREDICTION CENTER NORMAN OK
   0458 PM CDT THU JUN 11 2009
   
   AREAS AFFECTED...CAROLINAS...E-CNTRL GA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 379...
   
   VALID 112158Z - 112300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 379
   CONTINUES.
   
   ORGANIZED TSTM CLUSTERS CROSSING THE PIEDMONT AND DEVELOPING TOWARDS
   THE COASTAL PLAINS WILL POSE A CONTINUED THREAT FOR DAMAGING WINDS
   ALONG WITH MARGINALLY SEVERE HAIL. AREA DOWNSTREAM OF WW 379 INTO
   THE COASTAL CAROLINAS IS BEING MONITORED FOR A NEW SEVERE TSTM
   WATCH.
   
   RECENT RADAR IMAGERY DEPICTS TWO MAIN TSTM CLUSTERS ALONG BOTH WRN
   AND SERN PORTIONS OF WW 379...WITH MORE ISOLATED CONVECTION
   EXTENDING ALONG CONFLUENCE BOUNDARY SWWD INTO E-CNTRL GA. AIR MASS
   IS MODERATELY TO STRONGLY UNSTABLE...WITH MLCAPE OF 2000 TO 3000
   J/KG...AHEAD OF THE CONVECTIVE CLUSTERS ACROSS CNTRL NC TO THE
   COASTAL PLAINS OF THE CAROLINAS. THIS WILL SUPPORT A LIKELY
   MAINTENENCE OF TSTMS AS THEY CONTINUE TO EVOLVE TOWARDS THE COAST.
   AREA VAD PROFILERS INDICATE MODEST DEEP-LAYER SHEAR ALONG THE
   COASTAL PLAINS ATTM WITH STRONGER MID-LEVEL FLOW FARTHER WEST CLOSER
   TO THE MCV CROSSING THE SRN APPALACHIANS. NEVERTHELESS...GIVEN THE
   APPARENT ORGANIZED NATURE OF THE CLUSTERS...A WIND DAMAGE THREAT
   SHOULD EXTEND FARTHER E/SE OF WW 379 THIS EVENING.
   
   ..GRAMS.. 06/11/2009
   
   
   ATTN...WFO...MHX...RAH...ILM...CHS...CAE...GSP...FFC...
   
   LAT...LON   34178197 35318148 36178030 36087907 35877825 35367792
               34267829 33357929 32747999 31938092 31778149 32048215
               32238247 32808223 33818180 34178197