MESOSCALE DISCUSSION 0632
   NWS STORM PREDICTION CENTER NORMAN OK
   0438 PM CDT WED APR 27 2011
   
   AREAS AFFECTED...MUCH OF CENTRAL AND ERN KY...SERN IND...SRN
   OH...PARTS OF WV AND SWRN VA
   
   CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY 
   
   VALID 272138Z - 272215Z
   
   A NEW TORNADO WATCH IS BEING COORDINATED WITH AFFECTED WFOS AND WILL
   BE ISSUED SHORTLY FOR MUCH OF CENTRAL AND ERN KY INTO SERN IND...AND
   PARTS OF WV AND SWRN VA.  ONGOING TORNADO THREAT S OF THIS REGION IS
   EXPECTED TO SPREAD NNEWD INTO THE EVENING.
   
   LATE AFTERNOON SURFACE ANALYSIS INDICATED AN AREA OF LOW PRESSURE
   LOCATED OVER SERN MO...WITH THIS FEATURE EXPECTED TO UNDERGO FURTHER
   INTENSIFICATION TRACKING TOWARD INDIANA AS THE ATTENDANT PROGRESSIVE
   OZARKS SHORTWAVE TROUGH TAKES ON A NEGATIVE TILT TRACKING NEWD. 
   DESPITE WEAKER INSTABILITY IN PLACE ACROSS THE DISCUSSION AREA...A
   STRENGTHENING LOW LEVEL JET INTO KY/SRN IND/SRN OH BY EARLY EVENING
   AS A 100 KT SWLY MIDLEVEL JET NOSES INTO THIS REGION WILL AID IN
   DESTABILIZATION.  THIS COMBINED WITH INCREASING LOW LEVEL SHEAR
   /300-500 M2 PER S22/ INTO THE EVENING WILL BE VERY FAVORABLE FOR
   STORM ROTATION...SUPERCELLS PRODUCING TORNADOES.
   
   ..PETERS.. 04/27/2011
   
   
   ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...IND...PAH...
   
   LAT...LON   36588583 36658701 38388665 39048515 38978312 38878166
               37588155 36578234 36588583