MESOSCALE DISCUSSION 1567
   NWS STORM PREDICTION CENTER NORMAN OK
   1057 AM CDT WED JUL 15 2009
   
   AREAS AFFECTED...PARTS OF CNTRL/ERN KY INTO NRN MIDDLE TN
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 151557Z - 151730Z
   
   THE THREAT FOR LOCALLY DAMAGING WIND GUSTS WILL EXIST ALONG MCS
   TRACK THIS AFTERNOON.  A WW IS NOT ANTICIPATED.
   
   BOWING MCS CENTERED JUST S OF SDF APPEARS TO DEVELOPING SOME
   FORWARD-PROPAGATIONAL CHARACTERISTICS WHICH IS RESULTING IN A SLIGHT
   ACCELERATION OF SYSTEM TO 30-35 KT.  THIS ACCELERATION AND BOWING
   CONFIGURATION OF MCS ARE LIKELY DUE IN PART TO THE ESTABLISHMENT OF
   A 35-45 KT REAR INFLOW JET WHICH WAS WELL-SAMPLED BY THE SDF VWP.
   
   BASED ON PLAN VIEW PROFILER/VWP DATA...IT APPEARS THAT SOURCE REGION
   OF LOW-LEVEL INFLOW TO SYSTEM IS SRN MO/WRN KY WHERE BOUNDARY LAYER
   MOISTURE IS GREATER WITH DEWPOINTS OF 70-75 F.  DESPITE THIS MOIST
   INFLOW...THE PRESENCE OF CONSIDERABLE DOWNSHEAR HIGH CLOUDINESS AND
   WEAK MIDLEVEL LAPSE RATES /PER 12Z BNA SOUNDING/ WILL TEND TO LIMIT
   THE DEGREE OF AIR MASS DESTABILIZATION THIS AFTERNOON.  LOCALLY
   DAMAGING WIND GUSTS WILL REMAIN POSSIBLE ALONG SYSTEM TRACK GIVEN
   THE ABOVE-MENTIONED REAR INFLOW JET...THOUGH THE PROSPECT FOR A MORE
   WIDESPREAD WIND EVENT APPEARS LOW ATTM.
   
   ..MEAD.. 07/15/2009
   
   
   ATTN...WFO...MRX...JKL...LMK...OHX...PAH...
   
   LAT...LON   36468615 36848654 37208690 37458678 37448607 37598540
               38118505 38198478 37788418 36678419 36208444 35978548
               36468615