MESOSCALE DISCUSSION 0719
   NWS STORM PREDICTION CENTER NORMAN OK
   1017 PM CDT TUE MAY 10 2011
   
   AREAS AFFECTED...SRN OH...WV...WRN KY...WRN VA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 272...
   
   VALID 110317Z - 110415Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 272
   CONTINUES.
   
   SUSTAINED LOW LEVEL WARM ADVECTION APPEARS TO BE THE DOMINANT
   FORCING MECHANISM IN REGENERATIVE UPDRAFT DEVELOPMENT ACROSS THE OH
   VALLEY.  LATEST OBJECTIVE ANALYSIS SUPPORTS 20-40KT LOW LEVEL WLY
   INFLOW INTO NW-SE ORIENTED ZONE OF BROKEN CONVECTION.  WITH A STRONG
   EML HAVING OVERSPREAD MUCH OF THE LOWER OH/TN VALLEY REGION IT
   APPEARS THE FAVORED ZONE FOR DEVELOPMENT WILL REMAIN
   QUASI-STATIONARY WELL AFTER MIDNIGHT.  LARGE HAIL WILL BE THE
   PRIMARY SEVERE THREAT WITH NEW UPDRAFTS.
   
   ..DARROW.. 05/11/2011
   
   
   ATTN...WFO...RNK...RLX...MRX...JKL...ILN...LMK...
   
   LAT...LON   36918326 39008422 38998086 36928001 36918326