MESOSCALE DISCUSSION 1356
   NWS STORM PREDICTION CENTER NORMAN OK
   1157 AM CDT WED JUN 22 2011
   
   AREAS AFFECTED...NRN AND ERN MS...CNTRL AND NRN AL...WRN AND MIDDLE
   TN
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 221657Z - 221900Z
   
   STORMS SHOULD CONTINUE TO DEVELOP AND INTENSIFY THIS AFTERNOON AND A
   WATCH MAY BE NEEDED FOR DAMAGING WINDS.
   
   VISIBLE IMAGERY SHOWS AREA OF HEATING TAKING PLACE OVER WRN TN INTO
   NRN MS...WITH INDICATIONS OF CLEARING INTO MIDDLE TN AS WELL. A VERY
   MOIST AND UNSTABLE AIR MASS IS IN PLACE WITH PW OF 1.75 TO 2.25
   INCHES.
   
   STORMS HAVE RECENTLY INCREASED IN COVERAGE OVER CNTRL AND NRN MS
   INTO SWRN TN...ON AN OUTFLOW BOUNDARY WHICH IS MOVING E IN THE
   DIRECTION OF THE MEAN WIND. AS THE ATMOSPHERE CONTINUES TO
   DESTABILIZE AHEAD OF THIS CONVECTION...AND AS A COLD POOL BECOMES
   BETTER ORGANIZED AND TIED TO THIS SYSTEM...A DAMAGING WIND THREAT
   SHOULD EVOLVE.
   
   ..JEWELL.. 06/22/2011
   
   
   ATTN...WFO...OHX...BMX...HUN...MEG...JAN...
   
   LAT...LON   35079023 35688949 36198850 36518781 36388687 35928622
               35228604 33858604 33088663 32338941 32738954 33508981
               34088996 35079023