Severe weather remains possible on Tuesday night in the Chicago area, with two additional counties added to the watch area.
A severe thunderstorm watch remains in effect until midnight in McHenry, Lake, DeKalb, Kane, DuPage, Cook, Kendall and Will counties in Illinois, as well as Lake and Porter counties in Indiana.
Late Tuesday, the National Weather Service added LaSalle and Grundy counties to the watch area, with the watch remaining in effect until midnight.
Gusty winds and heavy rain are expected with the fast-moving storms, according to forecast models.
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Earlier severe thunderstorm warnings in McHenry, Kane, DuPage and Cook counties were allowed to expire throughout the evening, but storms are still pushing their way through the region at this time, with gusty winds and heavy rains.
A brief tornado warning was issued for McHenry County, but was canceled after approximately 15 minutes.
According to the NBC 5 Storm Team, the main threat from the storms will be damaging winds, with some gusts potentially exceeding 75 miles per hour in the second wave of storms, which are expected to arrive after 8 p.m. Tuesday.
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Heavy rains are also possible with both waves of storms, which could potentially lead to flooding in areas already heavily saturated by rainfall that occurred on Monday.
The main threat with those storms will be gusty winds after 10 p.m., with gusts in excess of 75 miles per hour possible, according to officials. That could cause significant tree and power line damage in impacted areas, with most of that damage expected to occur to the west and southwest of the city of Chicago.
Torrential rainfall could also lead to flooding as the storms move through, officials said.
