From heat to heavy rains; Cold front brings storms

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Temperatures are starting to drop in the Chicago area after two days of extreme heat, bringing with it heavy rains and storms.

The temperature at O’Hare International Airport reached 95 degrees Monday afternoon, coming just three degrees shy of the record for the date. This was the highest temperature recorded during the latest hot spell, which brought three straight days of 90-degree readings and triple-digit heat indices.

Thunderstorms erupted along a southbound cold front during the late afternoon, sending cool storm outflow across the metro area. By 7 p.m., areas along and north of the I-88 corridor had cooled more than 20 degrees. The front that initiated Monday’s storms will settle south of the area, establishing a cooler, northeast wind flow that is to persist through the upcoming weekend. More rain is expected in what has been a soggy June.

Though the focus of heavy thunderstorms will have shifted south of the area by Tuesday afternoon, another weather system is forecast to bring a heavy rain threat on Friday.

Video was posted on Facebook of flash flooding in Rockford. According to the person who posted the video, the flooding happened on Parkview Avenue near Spring Creek Road.

A cold front is passing through causing a wade range from the metro area to the north suburbs.

The drop in temps will likely trigger thunderstorm activity that could bring strong/ severe thunderstorms and the potential for heavy rainfall.

Much of the Chicago area is under a marginal risk of severe thunderstorms Monday night.

Earlier Monday, temperatures reached into the 90s with a heat index over 100 degrees.

High humidity and sunshine led to an Excessive Heat Warning for Chicago and Cook County until Monday evening.  A Heat Advisory was also issued for other Chicago-area counties.

Chicago Teachers Union said a number of schools were without air conditioning.

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