Threat of flash flooding, isolated tornadoes possible as severe storms possible through early Sunday – NBC Chicago

The Chicago area could experience another round of severe weather late Saturday after two tornadoes touched down, toppling trees and causing power outages for thousands of people.

Severe thunderstorm warnings were issued in the morning as communities endured heavy rain, high winds and flooding. By 6 p.m., the rain had not stopped everywhere and several streets remained closed due to heavy flooding.

Parts of the Chicago area along the Illinois-Wisconsin border remain at “increased risk” of severe weather as a Minnesota-Wisconsin storm system heads south, according to the Storm Prediction Center. -is. Showers and thunderstorms are expected around 8 p.m., bringing the possibility of isolated tornadoes, damaging winds of up to 70 miles per hour, and hail up to an inch in diameter.

With some Lake County communities experiencing significant flooding, the National Weather Service issued a flood warning, stating “water levels above flood stage are imminent or may already occur” near or on along the Des Plaines River.

A tornado likely touched down south of Naperville early Saturday morning, according to National Weather Service data. Reporting by Jen DeSalvo of NBC 5.

At 3:45 p.m. the river was at 11.1 feet. The river is expected to crest nearly 16 feet Sunday morning, a foot above flood stage. A flash flood warning remains in effect until further notice, according to the NWS.

The threat is not as severe in other nearby communities, although they can also experience flash flooding.

Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, McHenry, and Will counties in Illinois as well as Lake and Porter counties in northwest Indiana are under a 7 p.m. flash flood watch until Sunday morning.

At midnight, the first batch of storms will move in, according to meteorologists from the NBC 5 Storm team. But that won’t be the end of the rain.

More showers and thunderstorms are expected to develop early in the morning, moving east around 5 a.m. and eventually ending around 10 a.m.

Drier conditions will set in over the next few hours, paving the way for a dry weather pattern in the days ahead.

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