By CBS 2 Chicago Staff

CHICAGO (CBS) — More than 1,200 ComEd customers were initially affected by power outages Saturday evening as snow continued to fall with up to 9 inches expected. According to the company, 1,236 customers were without power due to 21 outages from the snow as of 7 p.m.

By 10 p.m. that number had been reduced to 117 customers affected by 15 outages.

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ComEd serves 4,054,012 customers.

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The National Weather Service has issued a winter storm warning for Cook, DuPage, and Lake counties in Illinois and Lake and Porter counties in Indiana until 6 a.m. Sunday; and in DeKalb, Kane, Kendall, LaSalle, and McHenry counties, and part of Will County, through midnight Saturday night.

Other parts of the area are under a winter weather advisory.

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This is a developing story. 

CBS 2 Chicago Staff