Rainfall rates of up to two-to-three inches per hour are possible in the impacted areas. The entire Chicago area is either at a "marginal" or "slight" risk of severe weather, with gusty winds in excess of 60 miles per hour and isolated tornadoes possible. NBC 5's Interactive Radar is capturing the scene as the storm system approaches the area.

CHICAGO - A severe storm watch was issued Monday afternoon for several Chicago-area counties. The watch is in effect until 6 p.m. for counties such as Cook, DuPage, Kane, Kendall, Grundy, Lake, LaSalle, McHenry and Will. The National Weather Service said tornadoes and quarter-sized hail are possible with wind gusts of up to 70 mph.