MESOSCALE DISCUSSION 2122
   NWS STORM PREDICTION CENTER NORMAN OK
   0215 PM CDT SUN SEP 04 2011
   
   AREAS AFFECTED...PORTIONS OF WV / WRN VA / WRN MD
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 041915Z - 042015Z
   
   THE THREAT FOR ISOLATED SEVERE STORMS CAPABLE OF LOCALLY DAMAGING
   WINDS AND HAIL WILL INCREASE THROUGH THE REMAINDER OF THE AFTERNOON.
   A WATCH IS NOT CURRENTLY ANTICIPATED.
   
   RECENT TRENDS IN VISIBLE SATELLITE AND RADAR DATA INDICATE TSTMS
   INCREASING IN COVERAGE AND INTENSITY OVER THE APPALACHIANS WHERE
   TEMPERATURES IN THE 80S AND DEW POINTS IN THE 60S ARE YIELDING
   MLCAPE VALUES OF 1000-2000 J/KG.  FURTHER HEATING/DESTABILIZATION
   ACROSS THE ELEVATED TERRAIN SHOULD FOSTER ADDITIONAL STORM
   DEVELOPMENT THROUGH THE REMAINDER OF THE AFTERNOON WITH ACTIVITY
   GENERALLY MOVING NEWD WITHIN DEEP-LAYER SWLY WIND FIELD.  THE
   PRESENCE OF STEEP LOW-LEVEL LAPSE RATES WILL BE SUPPORTIVE OF
   LOCALLY DAMAGING WIND GUSTS...THOUGH THE MARGINAL MAGNITUDE OF
   VERTICAL SHEAR WILL LIMIT STORM ORGANIZATION AND OVERALL SEVERE
   WEATHER THREAT.
   
   ..MEAD.. 09/04/2011
   
   
   ATTN...WFO...LWX...RNK...PBZ...RLX...MRX...JKL...
   
   LAT...LON   36698244 37698190 39188079 39637989 39717896 39507849
               38957831 38487840 37257981 36758070 36568154 36698244