MESOSCALE DISCUSSION 0661
   NWS STORM PREDICTION CENTER NORMAN OK
   0641 PM CDT FRI MAY 01 2009
   
   AREAS AFFECTED...MIDDLE TN...NRN AL...NERN MS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 221...
   
   VALID 012341Z - 020045Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 221
   CONTINUES.
   
   ISOLD SEVERE THREAT WILL CONTINUE OVER THE NEXT HOUR OR TWO...WITH
   PRIMARY THREATS OF SEVERE HAIL/DMGG WINDS...AND LOCALLY HEAVY
   RAINFALL. A GENERAL WEAKENING TREND CAN BE ANTICIPATED THEREAFTER.
   WW WILL BE ALLOWED TO EXPIRE.
   
   QUASI-LINEAR MCS IS CONTINUING TO ADVANCE SEWD THROUGH NRN AL/GA AS
   AIRMASS IN THE IMMEDIATE VICINITY REMAINS MODERATELY UNSTABLE. DMGG
   WINDS/SEVERE HAIL MAY STILL BE SUPPORTED OVER THE NEXT HOUR OR TWO
   BEFORE THE SYSTEM GENERALLY WEAKENS AS IT BOTH PROPAGATES AWAY FROM
   STRONGER SHEAR TO THE NW...AND ENCOUNTERS MORE STABLE AIR TO THE SE.
   ACROSS NWRN PORTIONS OF THE WATCH...CONVECTION DEVELOPING ACROSS
   WRN/MIDDLE TN IS SLOWLY MOVING SEWD AS WELL. ALTHOUGH THE AIRMASS
   HAS STABILIZED AT THE SURFACE FOLLOWING THE AFOREMENTIONED MCS...A
   FEW ELEVATED STORMS CAPABLE OF HAIL REMAIN POSSIBLE. HEAVY RAIN WILL
   BE LIKELY AS WELL...AS STORMS CONTINUE TO REDEVELOP IN VERY MOIST
   AIRMASS.
   
   ..HURLBUT.. 05/01/2009
   
   
   ATTN...WFO...MRX...FFC...OHX...BMX...HUN...MEG...
   
   LAT...LON   34018853 35468856 35778560 34358547 34018853