MESOSCALE DISCUSSION 0831
   NWS STORM PREDICTION CENTER NORMAN OK
   1257 PM CDT FRI MAY 15 2009
   
   AREAS AFFECTED...PARTS OF CENTRAL/ERN KY...MIDDLE/ERN TN...FAR NRN
   AL...FAR NRN GA TO FAR WRN NC/SWRN VA
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 151757Z - 151900Z
   
   ISOLATED STRONG TO SEVERE PULSE STORMS WILL CONTINUE TO DEVELOP FROM
   FAR NRN AL/GA INTO MIDDLE/ERN TN AND CENTRAL/ERN KY TO FAR WRN
   NC/SWRN VA.  
   
   STRONG SURFACE HEATING WITHIN A MOIST AIR MASS /SURFACE DEWPOINTS
   MID-UPPER 60S/ HAS WEAKENED THE SURFACE BASED CINH SUFFICIENTLY FOR
   THE RECENT INCREASE IN TSTM COVERAGE FROM FAR NRN AL THROUGH PARTS
   OF MIDDLE/ERN TN AND SRN KY.  THIS REGION IS LOCATED DOWNSTREAM OF A
   WEAK LOW-MID LEVEL MCV CENTERED OVER SWRN TN.  FORCING FOR ASCENT
   EAST OF THIS FEATURE SHOULD AID IN SUPPORTING A CONTINUED GREATER
   COVERAGE OF TSTMS ACROSS THIS REGION.  VERY WEAK DEEP LAYER SHEAR
   WILL TEND TO PROMOTE PULSE-TYPE STORMS WITHIN THE MODERATELY
   UNSTABLE AIR MASS...WITH ACTIVITY TRACKING NEWD WITHIN SWLY MEAN
   FLOW REGIME.  STEEPENING LOW LEVEL LAPSE RATES SHOULD SUPPORT
   ISOLATED STRONG WIND GUSTS AS THE PRIMARY THREAT THROUGH THE
   AFTERNOON.
   
   ..PETERS.. 05/15/2009
   
   
   ATTN...WFO...RLX...GSP...MRX...JKL...FFC...ILN...LMK...OHX...
   HUN...PAH...
   
   LAT...LON   34778729 35748722 37488701 38158638 38708480 37878259
               36408266 35318314 34618427 34598610 34778729