MESOSCALE DISCUSSION 0403
   NWS STORM PREDICTION CENTER NORMAN OK
   0619 PM CDT SUN APR 05 2009
   
   AREAS AFFECTED...MIDDLE TN...NRN AL
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 052319Z - 060045Z
   
   ISOLATED SEVERE STORMS WILL REMAIN POSSIBLE FOR A FEW MORE HOURS
   WITH MAINLY A HAIL AND WIND GUST THREAT. A BRIEF TORNADO CANNOT BE
   RULED OUT.
   
   STORMS CONTINUE TO FORM ALONG THE COLD FRONT EXTENDING SWWD INTO
   NERN MS.  THIS AREA IS ALSO ON THE TAIL END OF SUBSTANTIAL MID LEVEL
   FORCING ASSOCIATED WITH THE UPPER VORT.
   
   SURFACE ANALYSIS SHOWS A NARROW ZONE OF LOW TO MID 70S F
   TEMPERATURES AHEAD OF THIS LINE OF STORMS. PORTIONS OF NRN AL AND
   SRN TN WERE ONLY IN THE MID 60S F...BUT SOME SLIGHT WARMING MAY
   OCCUR AS THE LINE APPROACHES.
   
   WIND PROFILES ARE QUITE STRONG...AND PERHAPS TOO STRONG FOR
   SIGNIFICANT SEVERE GIVEN ONLY WEAK INSTABILITY IN PLACE.
   HOWEVER...ENOUGH INSTABILITY EXISTS GIVEN THE STRONG FORCING AND
   DEEP LAYER SHEAR FOR SEVERE STORMS CAPABLE OF PRODUCING DAMAGING
   WIND GUSTS...HAIL...AND PERHAPS A BRIEF TORNADO.
   
   ..JEWELL.. 04/05/2009
   
   
   ATTN...WFO...MRX...OHX...HUN...MEG...
   
   LAT...LON   34348851 35588765 36008733 36088501 34708598 34338736
               34348851