SPC has upgraded to a Moderate Risk for the MCS - and possible Derecho - forecasted to move through northern Illinois this afternoon.

retooting
NWS Storm Prediction Center
@NWSSPC

3:02pm CDT #SPC Day1 Outlook Moderate Risk: across portions of eastern Iowa, extreme southern Wisconsin, northern Illinois, and far northwest Indiana https://spc.noaa.gov/products/outlook/day1otlk.html