MESOSCALE DISCUSSION 1175
   NWS STORM PREDICTION CENTER NORMAN OK
   0307 PM CDT WED JUN 17 2009
   
   AREAS AFFECTED...MUCH OF KY/SWRN VA/FAR WRN NC/ERN AND NRN TN WWD TO
   SERN MO
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 439...
   
   VALID 172007Z - 172030Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 439
   CONTINUES.
   
   NEW WW MAY BE NEEDED SOON TO THE WEST WW 439...ACROSS WRN KY INTO
   SRN IL AND SERN MO.
   
   STRONG SURFACE HEATING ACROSS SERN MO/FAR SRN IL INTO WRN KY AND
   CONVERGENCE ALONG A SURFACE BOUNDARY EXTENDING WWD FROM CENTRAL KY
   TO SERN/ERN MO WILL CONTINUE TO SUPPORT NEW TSTM DEVELOPMENT THIS
   AFTERNOON.  AIR MASS IS VERY UNSTABLE /MLCAPE 2500-4000 J/KG/ WITH
   EFFECTIVE BULK SHEAR 30-35 KT  SUPPORTIVE OF ORGANIZED SEVERE
   STORMS.  AREA WIND PROFILERS/WSR-88DS AND FORECAST SOUNDINGS
   INDICATE STRAIGHT HODOGRAPHS CONDUCIVE FOR ADDITIONAL SPLITTING
   STORMS.  HAIL AND DAMAGING WINDS WILL BE THE MAIN THREATS THROUGH
   THE AFTERNOON INTO THE EVENING.
   
   FARTHER EAST...ERN EXTENT OF A VERY UNSTABLE AIR MASS AND SIMILAR
   VALUES OF EFFECTIVE SHEAR WILL CONTINUE TO SUPPORT SPLITTING STORMS
   WITH HAIL/DAMAGING WINDS THE PRIMARY THREATS.
   
   ..PETERS.. 06/17/2009
   
   
   ATTN...WFO...RNK...RLX...GSP...MRX...JKL...FFC...LMK...OHX...
   PAH...LSX...
   
   LAT...LON   35428227 34908434 35088576 35968604 36388639 36578693
               36668842 36918949 37369045 37819086 38299082 38629024
               38258825 38038707 38088574 38078468 37708246 37428175
               36278163 35428227