Wintry mix causing slick road conditions for Chicago-area commuters

CHICAGO (CBS)-- A wintry mix is leading to dangerous driving conditions for Tuesday morning commuters in the Chicago area. 

A Winter Storm Warning is in effect for areas northwest of the city, for Kane, McHenry, La Salle, DeKalb, and Lake (IL) counties. In these areas, snow totals are expected to reach over 6 inches.   

The Chicago Department of Streets and Sanitation deployed 287 salt trucks to help clear icy spots. 

Joe Dragovich with Illinois Tollway said nearly 200 trucks are working to clear roadways throughout the entire tollway system. Dragovich is reminding drivers to slow down and allow extra distance for snow trucks. 

Overnight snow and rain are impacting drivers in Chicago's southwest suburbs Tuesday morning. 

Snow on the ground mixed with active rain has caused slushy road conditions, causing cars to slide. 

CBS 2's Mugo Odigwe reported slick roads on Route 53 in Bolingbrook and recommends drivers take it slow. 

Odigwe reported snowy conditions in downtown Joliet. She said snowplows are working to clear the area, but heavy snowflakes continue to cover the streets. 

Snow-covered streets are also impacting drivers in Hoffman Estates, as CBS 2's Marissa Perlman reported. 

Snow is blanketing the roads in the western suburbs. 

Residents are waking up to snow-covered cars in Downers Grove and Lisle.