Straighter, smoother streams flow more violently than those that meander due to a reduction in friction. Areas with steeper ...

Severe storms continue in Chicago on Friday, and there is a risk of flash floods. Following a few heavy downpours Friday ...

The flood watch is in effect until 7 a.m. Friday for Cook County, the collar counties and the majority of northern Illinois, ...

Portions of west-central Chicago experienced localized flash flooding on July 8. Find out how to stay safe in flooded areas.

Chicago flash flooding caused sudden road washouts, and water rescues had to be made at more than one location on the West ...

An outflow boundary surging northward into the city from earlier storms south of Interstate 80 led to one lone thunderstorm ...

There were 41 people confirmed to be unaccounted for across the state as of Sunday afternoon. More could be missing.

The National Weather Service is warning of an ongoing threat for flash flooding in the Chicago region through Saturday.

In parts of Chicago, flash flood alerts rang Tuesday, warning of dangerous conditions as cars were stranded and submerged on ...

Chicago could see strong storms Thursday, Friday, and Saturday nights — with heat building Friday alongside the threat of ...

Droughts have a similar effect: When soil dries out over long periods, it can become compacted or even crusted over, reducing its ability to absorb water. Severe to extreme preexisting drought ...

The country has suffered several major flash flooding events since July Fourth. Here’s what’s happened and why flooding is so ...