Snow will ramp up during the evening commute, just before 5 p.m., as the main system snow arrives.
This will have an impact on the rush hour period.
The heaviest snowfall rates will happen Monday evening and overnight.
Chicago Weather: Heavy, Wet Snow Up To 9 Inches; Lakeshore Flood Advisory With Waves Up To 11 Feet
A winter storm warning will go into effect for the Chicago area from 3 p.m. Saturday until 6 p.m. Sunday. A lakeshore flood..
CBS 2 Chicago