I think we are close enough now to begin to raise consideration of possible svr in the area from Quincy to Quad Cities to Chicago on Saturday evening and in Illinois and Indiana on Sunday. Obviously strong concerns exist Sat for a plains tornado outbreak at least per European model, but as I look at GFS parameters in today's (Tues) a.m. and afternoon runs I am getting concerned for Illinois. Temps around 70, dp low 60's, CAPE 1500. low LCL's and minimal CIN, -5 LI, 80-90 knots at 500 mb and 50