Breaking: Overnight flash flood watch could effect already-high rivers

October 5, 2018

DeKALB – A flash flood warning has been issued by the National Weather Service for northeastern and north central Illinois.

The watch is in effect beginning at 7 tonight through 1 p.m. Saturday, with potential heavy rainfall and flooding. Showers and thunderstorms will increase coverage after dark, and could result in more than three inches of rain in some areas, according to Matt Friedlein, meteorologist with the NWS Romeoville office.

October is already proving to be a wet month. With the Rock and Kishwaukee rivers already running above normal, the significant addition in rainfall overnight could increase runoff from the rivers and surrounding springs.

A flash flood watch means conditions may develop that lead to flash flooding. The NWS cautions all areas effected by the watch to monitor later forecasts and be prepared to take action if necessary.

Heavy rain and thunderstorms are expected to continue through the weekend into next week. The extended forecast shows additional thunderstorms early next week come with temperatures that could reach almost 80 degrees as soon as Monday.

Update hourly