MESOSCALE DISCUSSION 0939
   NWS STORM PREDICTION CENTER NORMAN OK
   0646 PM CDT TUE MAY 24 2011
   
   AREAS AFFECTED...PORTIONS OF NERN/MIDDLE TN AND FAR SWRN VA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 357...
   
   VALID 242346Z - 250045Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 357
   CONTINUES.
   
   AN OUTFLOW BOUNDARY EXTENDS E-W ACROSS PORTIONS OF ERN/MIDDLE
   TN...WHERE ISOLATED TO SCATTERED THUNDERSTORMS ARE ONGOING.
   OBJECTIVE ANALYSIS AND RECENT SURFACE OBSERVATIONS INDICATE NERN TN
   AND FAR SWRN VA ARE QUICKLY STABILIZING IN THE WAKE OF AFTERNOON
   STORM ACTIVITY. FARTHER W OVER MIDDLE TN...TEMPERATURES REMAIN IN
   THE UPPER 70S/LOW 80S...WITH DEWPOINTS IN THE UPPER 60S CONTRIBUTING
   TOWARD MLCAPE VALUES FROM 1000-2000 J/KG. HOWEVER...WITH SHORTWAVE
   RIDGING BEGINNING TO OCCUR ACROSS TN...ADDITIONAL THUNDERSTORM
   DEVELOPMENT ALONG THE OUTFLOW BOUNDARY IS QUESTIONABLE.
   THEREFORE...MARGINAL SVR WEATHER THREAT /MAINLY LARGE HAIL AND
   DAMAGING WINDS/ WILL CONTINUE IN THE SHORT TERM...BEFORE STORMS
   WEAKEN DURING THE NEXT FEW HRS AS THE BOUNDARY LAYER COOLS.
   
   ..GARNER.. 05/24/2011
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...OHX...
   
   LAT...LON   36618525 36578372 37178257 36968233 37208176 36338176
               35768298 35488393 35698470 35368521 35528543 35848569
               36208581 36618525