MESOSCALE DISCUSSION 1264
   NWS STORM PREDICTION CENTER NORMAN OK
   0339 PM CDT FRI JUN 17 2011
   
   AREAS AFFECTED...SRN IL...SWRN IND...WRN KY
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 491...
   
   VALID 172039Z - 172145Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 491
   CONTINUES.
   
   THREAT OF DMGG WINDS WILL CONTINUE TO PROGRESS ESEWD THROUGH THE WW
   AREA. STABLE AREAS IN THE WAKE OF THE BOWING SEGMENT MAY BE CLEARED
   FROM THE WATCH.
   
   AMPLE SURFACE HEATING ALLOWED SUFFICIENT SURFACE-BASED
   DESTABILIZATION TO OCCUR DOWNSTREAM OF A BOWING SEGMENT THAT IS
   MOVING INTO SWRN IND/FAR WRN KY AS OF 2030Z. EXTRAPOLATION PLACES
   THE SRN /STRONGEST PORTION/ OF THE BOW AT THE ERN EDGE OF THE WW BY
   22-23Z. HOWEVER...RADAR VELOCITIES SUGGEST WINDS HAVE GENERALLY
   BECOME SUBSEVERE. SHOULD THIS TREND CONTINUE...A NEW WW MAY BE
   UNNECESSARY EAST OF THE CURRENT WW OVER CNTRL KY.
   
   ..HURLBUT.. 06/17/2011
   
   
   ATTN...WFO...LMK...IND...PAH...
   
   LAT...LON   38638751 38408618 37048627 37148777 37388848 37758791
               38148745 38638751