MESOSCALE DISCUSSION 0704
   NWS STORM PREDICTION CENTER NORMAN OK
   0951 PM CDT THU APR 28 2005
   
   AREAS AFFECTED...NRN AR / SERN MO / PARTS OF TN AND KY
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 290251Z - 290415Z
   
   THOUGH CONVECTION SHOULD CONTINUE TO INCREASE IN COVERAGE ACROSS THE
    PARTS OF THE MID MS VALLEY...STORMS SHOULD REMAIN LARGELY
   SUB-SEVERE.  NEW WW NOT ANTICIPATED.
   
   LONE SEVERE STORM IS ONGOING ATTM IN STONE COUNTY AR -- IN ERN
   PORTIONS OF WW 208 WHICH EXPIRES AT 29/03Z.  THIS STORM IS THE
   LEFT-MOVING MEMBER OF A PRIOR SUPERCELL SPLIT...AND THIS SUPERCELL
   PAIR HAS BEEN THE ONLY CONVECTION OF SIGNIFICANCE THIS EVENING.
   
   LOW-LEVEL MOISTURE -- AND THUS INSTABILITY -- REMAINS LIMITED ACROSS
   THIS REGION.  THOUGH WARM ADVECTION / ISENTROPIC LIFT ASSOCIATED
   WITH SWLY LOW-LEVEL JET WILL CONTINUE TO DRIVE CONVECTIVE
   DEVELOPMENT FOR THE NEXT SEVERAL HOURS...LACK OF FAVORABLE
   THERMODYNAMIC ENVIRONMENT SUGGESTS ONLY A LIMITED THREAT FOR UPDRAFT
   ROTATION THROUGH THE REMAINDER OF THE EVENING. THUS...WITH ONLY
   MARGINALLY-SEVERE HAIL AT BEST ANTICIPATED...NEW WW WILL LIKELY NOT
   BE REQUIRED.
   
   ..GOSS.. 04/29/2005
   
   
   ATTN...WFO...LMK...OHX...PAH...MEG...LZK...SGF...
   
   36279264 37119014 37258779 36728643 36188606 35688887
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