CHICAGO (STMW) — Flooding, hail the size of golf balls and winds at least 60 mph could be in store tonight as a severe thunderstorm heads into the Chicago region, according to the National Weather Service.

The rain would largely be a welcome change for Northeastern Illinois, which has had an unusually dry summer so far.

The agency on Saturday issued a thunderstorm watch for much of the Chicago area that lasts until 2 a.m. Sunday. Some nearby counties, including Will and Kankakee, are under full-blown thunderstorm warnings.

Amy Seeley, a meteorologist for the weather service, said reports of hail were coming in early Saturday night in Will and Kankakee counties. Kankakee County is also under a flood advisory.

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(Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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