MESOSCALE DISCUSSION 0384
   NWS STORM PREDICTION CENTER NORMAN OK
   1107 AM CDT SAT APR 09 2011
   
   AREAS AFFECTED...CNTRL AND ERN KY THROUGH NRN AND NERN TN
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 111...
   
   VALID 091607Z - 091730Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 111
   CONTINUES.
   
   THREAT FOR ISOLATED DAMAGING WIND AND HAIL CONTINUES ACROSS CNTRL
   KY...BUT NRN PORTION OF LINE HAS BECOME LESS ORGANIZED.
   HOWEVER...SEVERE THREAT MAY SPREAD INTO PARTS OF E-CNTRL THROUGH
   SERN KY AND NRN TN WHERE TRENDS ARE BEING MONITORED FOR A WW LATER
   THIS MORNING OR AFTERNOON.
   
   LATE THIS MORNING AN MCS CONTINUES THROUGH CNTRL KY AT 45-50
   KT....BUT OVERALL TREND HAS BEEN FOR THIS ACTIVITY TO WEAKEN. WELL
   DEFINED MCV OVER SRN IND WILL ADVANCE ESEWD TODAY. CURRENT THINKING
   IS THAT STORMS MAY REDEVELOP/REORGANIZE ALONG SRN FRINGES OF THE MCS
   THIS AFTERNOON WHERE INFLUX OF HIGHER THETA-E AIR IS MAXIMIZED. THE
   STRONGER FORCING ATTENDING THE MCV WILL REMAIN JUST NORTH OF THE
   WARM SECTOR...AND STRONGER CAP WITH SWD EXTENT TOWARD SRN KY AND TN
   MIGHT DELAY NEW DEVELOPMENT UNTIL THE AFTERNOON. VISIBLE IMAGERY
   SHOWS EVIDENCE OF A POSSIBLE GRAVITY WAVE MOVING THROUGH S-CNTRL KY
   AND N-CNTRL TN WHICH MIGHT BECOME A SOURCE OF INITIATION. VERTICAL
   SHEAR OF 45-50 KT...STEEP LAPSE RATES AND MODERATE INSTABILITY WILL
   SUPPORT A THREAT OF SUPERCELLS AND BOWING SEGMENTS ONCE STORMS
   REDEVELOP.
   
   ..DIAL.. 04/09/2011
   
   
   ATTN...WFO...RLX...MRX...JKL...LMK...OHX...
   
   LAT...LON   36218613 36958517 38298396 37958286 36948287 35858492
               36218613