MESOSCALE DISCUSSION 0376
   NWS STORM PREDICTION CENTER NORMAN OK
   0536 PM CDT THU APR 02 2009
   
   AREAS AFFECTED...NERN AR...NRN MS...WRN TN/KY...MO BOOTHEEL
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 022236Z - 030000Z
   
   A THREAT FOR SEVERE WEATHER...MAINLY IN THE FORM OF HAIL AND
   WIND...WILL PERSIST FOR A FEW MORE HOURS AND A WW MAY BE NECESSARY.
   
   A STRONG/COMPACT UPPER VORT WILL CONTINUE EWD ACROSS THE LOWER MS
   AND TN VALLEY REGION. ALTHOUGH THE SURFACE AIR MASS HAS BEEN
   DISRUPTED BY PREVIOUS CONVECTION...A NARROW ZONE OF SURFACE
   TEMPERATURE RECOVERY HAS OCCURRED ALONG WITH CONTINUED SIGNIFICANT
   COOLING ALOFT. THE RESULT IS AN ENVIRONMENT WITH MINIMAL
   INSTABILITY...BUT VERY STRONG FORCING AHEAD OF THE SURFACE COLD
   FRONT AND NEAR THE SURFACE LOW. 
   
   ACTIVITY CURRENTLY ACROSS ERN AR INTO NW MS SHOULD PERSIST FOR
   SEVERAL HOURS AS IT DEVELOPS NEWD WITH THE LOW. SFC WINDS AHEAD OF
   THESE STORMS ARE RATHER WEAK...BUT STRONG PRESSURE FALLS JUST AHEAD
   OF THE COLD FRONT AND NEAR THE SURFACE LOW MAY RESULT IN LOCALLY
   ENHANCED LOW LEVEL WINDS AND SHEAR. GIVEN THE COOL TEMPERATURES
   ALOFT...SOME HAIL IS LIKELY. STRONG FORCING AND DEEP LAYER SHEAR
   SUPPORT A DAMAGING WIND THREAT.  AN ISOLATED TORNADO CANNOT BE RULED
   OUT GIVEN THE STRONG PRESSURE FALLS AND LOCALLY ENHANCED LOW LEVEL
   STORM RELATIVE INFLOW.
   
   ..JEWELL.. 04/02/2009
   
   
   ATTN...WFO...PAH...MEG...JAN...LZK...
   
   LAT...LON   33009080 33869075 34939104 35369163 35949145 36618998
               36798898 36688858 36398837 34618824 33308880 32918923
               32778987 33009080