MESOSCALE DISCUSSION 0884
   NWS STORM PREDICTION CENTER NORMAN OK
   0249 PM CDT THU MAY 28 2009
   
   AREAS AFFECTED...PIEDMONT AND COASTAL PLAINS OF THE CAROLINAS AND VA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 281949Z - 282045Z
   
   MARGINAL SEVERE HAIL/WIND SHOULD CONTINUE THROUGH LATE AFTERNOON
   ACROSS THE LOWER MID-ATLANTIC AMIDST POCKETS OF MODERATE
   INSTABILITY. MODEST DEEP-LAYER SHEAR WILL REMAIN A PRIMARY LIMITING
   FACTOR WITH PULSE TO SPORADIC MULTICELL CLUSTERS LIKELY RESULTING IN
   ISOLATED SEVERE REPORTS. A WW IS NOT ANTICIPATED.
   
   RECENT RADAR IMAGERY HAS DEPICTED IN INCREASE IN DIURNALLY-DRIVEN
   CONVECTION ACROSS MUCH OF THE LOWER MID-ATLANTIC. POCKETS OF
   STRONGER HEATING HAVE CONTRIBUTED TO SURFACE TEMPERATURES INTO THE
   MIDDLE 80S WITH DEW POINTS HOLDING IN THE UPPER 60S TO LOWER
   70S...LEADING TO MODERATE DESTABILIZATION. AREA VAD PROFILERS DEPICT
   WEAK DEEP-LAYER FLOW WITH 0-6 KM SHEAR FROM 15-20 KT. WITH STEEPER
   MID-LEVEL LAPSE RATES AND STRONGER UPPER-TROPOSPHERIC WINDS
   GENERALLY CONFINED W OF THE APPALACHIANS...PRIMARY STORM MODE SHOULD
   REMAIN PULSE-LIKE. STORM INTERACTIONS/MERGERS SHOULD CONTRIBUTE TO
   OCCASIONAL MULTICELL CLUSTERS CAPABLE OF PRODUCING ISOLATED DAMAGING
   WIND AND MARGINAL SEVERE HAIL.
   
   ..GRAMS.. 05/28/2009
   
   
   ATTN...WFO...AKQ...MHX...LWX...RAH...ILM...RNK...CAE...GSP...
   
   LAT...LON   38087687 36587661 35237747 34337873 33637964 33348070
               33628163 34338233 35278170 36638032 37407958 38127862
               38087687