MESOSCALE DISCUSSION 0939
   NWS STORM PREDICTION CENTER NORMAN OK
   0444 PM CDT THU MAY 15 2008
   
   AREAS AFFECTED...W-CNTRL GA
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 152144Z - 152245Z
   
   THE THREAT FOR LOW-TOPPED SUPERCELLS CAPABLE OF AN ISOLATED TORNADO
   APPEARS TO BE INCREASING AND CONVECTIVE TRENDS ARE BEING MONITORED
   FOR A WW.
   
   RECENT TRENDS IN RADAR DATA SHOW AN INCREASE IN STORM INTENSITY OVER
   E-CNTRL AL AND W-CNTRL GA.  THIS ACTIVITY APPEARS TO BE COLOCATED
   WITH A MIDLEVEL VORTICITY MAXIMUM /MCV/ AND ATTENDANT SURFACE LOW. 
   LATEST SURFACE OBSERVATIONS OVER ERN AL INDICATE A WELL-DEFINED
   PRESSURE FALL CENTER WITH THIS LOW IN ADDITION TO AN OUTFLOW
   BOUNDARY WHICH EXTENDS FROM THIS LOW ENEWD TO NEAR MCN TO N OF AGS. 
   MODIFICATION OF A RUC PROXIMITY SOUNDING FOR CURRENT SURFACE
   CONDITIONS INVOF THIS LOW YIELDS SBCAPES OF 400-700 J/KG. 
   MOREOVER...ACCOMPANYING FORECAST WIND PROFILE AND MAXWELL AFB VWP
   INDICATE STRONG LOW-LEVEL SHEAR WITH 0-1 KM SRH OF 300-350 M2/S2. 
   GIVEN THE MOIST BOUNDARY LAYER AND RESULTANT LOW LCL HEIGHTS...THE
   POTENTIAL WILL EXIST FOR A COUPLE OF LOW-TOPPED SUPERCELLS CAPABLE
   OF A TORNADO.
   
   ..MEAD.. 05/15/2008
   
   
   ATTN...WFO...FFC...BMX...
   
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