MESOSCALE DISCUSSION 1211
   NWS STORM PREDICTION CENTER NORMAN OK
   0325 PM CDT THU JUN 18 2009
   
   AREAS AFFECTED...WRN CAROLINAS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 466...
   
   VALID 182025Z - 182130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 466
   CONTINUES.
   
   DESPITE THE CONTINUED PRESENCE OF A FAIRLY STRONG COLD POOL
   /TEMPERATURES IN THE MID TO UPPER 60S OVER ERN TN AT
   20Z/...APPALACHIAN MOUNTAINS OF WRN NC APPEAR TO HAVE DISRUPTED MCS
   ORGANIZATION. THIS MAY HINDER A MORE WIDESPREAD SEVERE WEATHER
   THREAT FOR WW 466. HOWEVER...ISOLATED THUNDERSTORM DEVELOPMENT IS
   OCCURRING AHEAD OF THE MCS...WITHIN A MODERATELY UNSTABLE
   ENVIRONMENT AND SUFFICIENT DEEP LAYER VERTICAL WIND SHEAR FOR
   ORGANIZED MULTICELLS. IF REGENERATION OF NEW UPDRAFTS CAN OCCUR
   ALONG GUST FRONT MOVING ACROSS THE APPALACHIAN MOUNTAINS...THEN
   REINTENSIFICATION OF MCS IS POSSIBLE AS IT ENCOUNTERS STRONGER
   INSTABILITY OVER THE CAROLINAS. OTHERWISE...STRONG DOWNBURST WINDS
   AND PERHAPS LARGE HAIL WILL BE POSSIBLE DURING THE REMAINDER OF THE
   AFTERNOON WITH DISCRETE STORM DEVELOPMENT OCCURRING ALONG THE LEE OF
   THE MOUNTAIN CHAIN.
   
   ..GARNER.. 06/18/2009
   
   
   ATTN...WFO...ILM...RNK...CAE...GSP...MRX...
   
   LAT...LON   36148300 36788120 34138009 33498186 36148300