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.

Strong storms are moving into the Chicago area from Wisconsin and could bring damaging winds, hail, and torrential rain.

Most of the Chicago area is at a “slight” risk of severe weather, with a severe thunderstorm watch issued Monday. Here's how things will unfold.

Powerful Hurricane Erin has undergone a period of astonishingly rapid intensification — a phenomenon that has become far more common in recent years as the planet warms. It was a rare Category 5 for a time Saturday before becoming a Category 4, churning through the Atlantic Ocean north of the Caribbean.

Multiple rounds of storms and heavy rain ripped through the Chicago area on Monday, leading to advisories and warnings throughout the day.

Multiple reports of damaged homes, flooded basements and roads, and power outages following overnight storms across the Chicago area.