MESOSCALE DISCUSSION 0375
   NWS STORM PREDICTION CENTER NORMAN OK
   0525 PM CDT THU APR 02 2009
   
   AREAS AFFECTED...MIDDLE TN/MUCH OF AL INTO EASTERN TN/NORTHERN GA
   
   CONCERNING...TORNADO WATCH 107...
   
   VALID 022225Z - 030000Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 107 CONTINUES.
   
   TORNADO WATCH 107 CONTINUES UNTIL 01Z. AN ADDITIONAL WATCH WILL
   LIKELY BE NEEDED IN THE NEXT HOUR OR SO ACROSS PORTIONS OF EASTERN
   TN/EASTERN AL/NORTHERN GA.
   
   A RELATIVELY WELL-ORGANIZED QLCS APPEARS LIKELY TO CONTINUE TO
   STEADILY ADVANCING EAST-NORTHEASTWARD ACROSS MIDDLE TN/NORTHERN AL
   INTO EASTERN TN/NORTHEAST AL/NORTHERN GA THIS EVENING. THE
   DOWNSTREAM AIRMASS IS NOT PARTICULARLY UNSTABLE AMIDST AMPLE CLOUD
   COVER AND 50S F SURFACE DEWPOINTS...BUT DOWNSTREAM PRESSURE
   FALLS/CORRESPONDING BACKED LOW LEVEL FLOW WILL MAINTAIN A FAVORABLE
   KINEMATIC ENVIRONMENT FOR A WELL-SUSTAINED QLCS CAPABLE OF WIND/HAIL
   AND A FEW TORNADOES. FARTHER WEST...REDEVELOPMENT NEAR THE MS/AL
   BORDER MAY POSE A RENEWED THREAT FOR AT LEAST HAIL/WIND ACROSS
   NORTHERN AL/PERHAPS MIDDLE TN THIS EVENING.
   
   ..GUYER.. 04/02/2009
   
   
   ATTN...WFO...GSP...MRX...FFC...OHX...BMX...HUN...
   
   LAT...LON   36258566 36508469 36238347 34458356 33418500 33598608
               36258566