MESOSCALE DISCUSSION 0370
   NWS STORM PREDICTION CENTER NORMAN OK
   0109 PM CDT THU APR 02 2009
   
   AREAS AFFECTED...AL...SERN MS...SRN MIDDLE TN
   
   CONCERNING...TORNADO WATCH 103...
   
   VALID 021809Z - 021915Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 103 CONTINUES.
   
   A NEW TORNADO WATCH WILL LIKELY BE ISSUED FOR MUCH OF AL/SERN
   MS...EFFECTIVELY REPLACING PORTIONS OF WW 103 IN SRN AL/SERN MS.
   
   BROKEN LINE OF STRONG TO SEVERE TSTMS FROM N-CNTRL MS TO FAR SERN LA
   SHOULD PROGRESS EWD INTO AL AND SERN MS THIS AFTERNOON. POCKETS OF
   INSOLATION DOWNSTREAM OF THIS ACTIVITY ACROSS WRN AL TO SERN MS HAVE
   RESULTED IN TEMPERATURES WARMING THROUGH THE 70S TO LOWER 80S.
   INTENSE DEEP-LAYER SHEAR AND STEEP MID-LEVEL LAPSE RATES WILL
   SUPPORT POTENTIAL FOR DAMAGING WINDS AND LARGE HAIL. THE TORNADO
   THREAT MAY BE AT LEAST INITIALLY MITIGATED ACROSS CNTRL/WRN AL BY
   LOW-LEVEL DRYING INDICATED IN 15Z JAN/LIX RAOBS...WHICH HAS BEEN
   REFLECTED IN RECENT SURFACE OBS /FALLING TO THE MIDDLE 50S IN PIB/.
   HOWEVER...RICHER LOW-LEVEL MOISTURE ACROSS NRN AL/SRN MIDDLE TN AND
   MORE BACKED LOW-LEVEL FLOW ACROSS NRN AL/SRN MIDDLE TN SHOULD RESULT
   IN A GREATER TORNADIC POTENTIAL IN THIS REGION DURING THE AFTERNOON.
   
   ..GRAMS.. 04/02/2009
   
   
   ATTN...WFO...MRX...TAE...OHX...BMX...HUN...MOB...MEG...JAN...
   LIX...
   
   LAT...LON   35238802 35378805 35648701 35478575 34568554 33028580
               31628605 30958690 30298774 30268840 30388909 31078914
               31688898 35238802