MESOSCALE DISCUSSION 1011
   NWS STORM PREDICTION CENTER NORMAN OK
   0730 PM CDT SUN JUN 09 2013

   AREAS AFFECTED...WRN/CNTRL KY...WRN/MIDDLE TN...NERN MS...FAR NWRN
   AL

   CONCERNING...SEVERE THUNDERSTORM WATCH 290...291...

   VALID 100030Z - 100130Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   290...291...CONTINUES.

   SUMMARY...LOCALIZED DAMAGING WIND THREAT MAY PERSIST FOR A FEW MORE
   HOURS WITH EWD-EVOLVING QLCS/LINE SEGMENTS...BUT WILL REMAIN TOO
   MARGINAL FOR AN ADDITIONAL WW BEYOND 02Z SCHEDULED EXPIRATION.

   DISCUSSION...CONVECTION HAS LARGELY CONSOLIDATED INTO AN EWD-MOVING
   QLCS FROM WRN KY INTO NRN MS. DOWNSTREAM AIR MASS IS LIKELY ONLY
   WEAKLY BUOYANT PER MODIFIED 00Z JAN/BMX RAOBS AS SURFACE
   TEMPERATURES HAVE LARGELY COOLED THROUGH THE 70S AND MID-LEVEL LAPSE
   RATES ARE POOR. STILL...30-40 KT EFFECTIVE SHEAR ASSOCIATED WITH A
   MID-LEVEL SPEED MAX ATTENDANT TO THE MID-MS VALLEY SHORTWAVE TROUGH
   WILL REMAIN SUPPORTIVE OF A LOCALIZED DAMAGING WIND RISK UNTIL THE
   AIR MASS IS COMPLETELY OVERTURNED.

   ..GRAMS.. 06/10/2013


   ATTN...WFO...LMK...OHX...BMX...HUN...PAH...MEG...

   LAT...LON   37648683 37848588 37678554 37178544 36248638 34248815
               33948930 33998966 34248961 35278879 35878824 37648683