MESOSCALE DISCUSSION 1715
   NWS STORM PREDICTION CENTER NORMAN OK
   0340 PM CDT TUE JUL 08 2003
   
   AREAS AFFECTED...EXTREME NERN MO...EXTREME SERN IA...NRN AND CENTRAL
   IL
   
   CONCERNING...TORNADO WATCH 683...
   
   VALID 082040Z - 082215Z
   
   TORNADO POTENTIAL REMAINS MOST LIKELY ACROSS NRN IL FROM WOODFORD
   COUNTY TO IROQUOIS COUNTY WHERE LOW-LEVEL SHEAR IS STRONGEST ALONG
   THE SURFACE BOUNDARY.  DAMAGING WIND AND HAIL THREAT REMAINS MOST
   LIKELY WITHIN A WARM SECTOR SOUTH OF THE SURFACE BOUNDARY ACROSS
   CENTRAL IL.
   
   REGIONAL RADARS SHOW A BOW ECHO OVER NWRN-WEST CENTRAL IL MOVING EWD
    AT 30-40 KT WITH THE FASTEST MOVEMENT WITH THE APEX OF THE
   BOW...WHICH IS CURRENTLY LOCATED OVER WOODFORD COUNTY IL.  THE
   GREATEST THREAT FOR DAMAGING WINDS SHOULD REMAIN WITH THE APEX OF
   THE BOW ALONG THE SURFACE BOUNDARY INTO NERN IL/NWRN IND DURING THE
   NEXT 2-3 HOURS.  ADDITIONAL STORMS HAVE INCREASED IN INTENSITY OVER
   NERN MO AND WILL MOVE EWD INTO THE SWRN PORTION OF WW 683 BY 21Z. 
   DAMAGING WINDS AND LARGE HAIL WILL BE THE PRIMARY THREATS ACROSS THE
   SRN THIRD OF THE WATCH.
   
   ..PETERS.. 07/08/2003
   
   
   ATTN...WFO...LOT...ILX...LSX...DVN...
   
   40989174 41058985 42098978 41878754 39408758 39729169