MESOSCALE DISCUSSION 0570
   NWS STORM PREDICTION CENTER NORMAN OK
   0838 PM CDT SAT APR 27 2013
   
   AREAS AFFECTED...NRN MIDDLE TN...FAR SWRN KY
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 280138Z - 280245Z
   
   PROBABILITY OF WATCH ISSUANCE...20 PERCENT
   
   SUMMARY...SOME SVR WEATHER POTENTIAL EXISTS WITH SUPERCELLS EMBEDDED
   WITHIN A BROADER CLUSTER OF TSTMS. ALTHOUGH THE POTENTIAL FOR A
   TORNADO CANNOT BE RULED OUT...THE PRESENCE OF A COOL/STABLE BOUNDARY
   IN THE VICINITY OF THESE STORMS WILL PROBABLY LIMIT TORNADIC/DMGG
   WIND POTENTIAL. THUS...A WW IS NOT ANTICIPATED.
   
   DISCUSSION...PRIMARILY ELEVATED TSTMS HAVE PERSISTED WITHIN WAA
   REGIME N OF A WARM FRONT PROTRUDING EWD/SEWD OUT OF A SFC LOW
   LOCATED NEAR MEM. SFC OBS AND THE 28/00Z BNA SOUNDING SUGGEST THE
   BOUNDARY LAYER IS STABLE IN THE VICINITY OF THIS CONVECTION...WHICH
   SHOULD LIMIT BOTH TORNADIC AND DMGG WIND POTENTIAL.
   HOWEVER...VEERING WIND PROFILES WITH HEIGHT COMBINED WITH MODERATELY
   STRONG MIDLEVEL FLOW...WILL BE SUPPORTIVE FOR SUPERCELLS ROOTED
   ABOVE THE BOUNDARY LAYER. THESE STORMS WILL AT LEAST HAVE THE
   POTENTIAL TO PRODUCE MARGINALLY SVR HAIL...BUT WW ISSUANCE WILL
   LIKELY NOT BE REQUIRED ATTM.
   
   ..ROGERS/KERR.. 04/28/2013
   
   
   ATTN...WFO...LMK...OHX...PAH...MEG...
   
   LAT...LON   36228620 35968739 35798841 35798903 36128920 36688859
               36818784 36858707 36818659 36618613 36228620