(NBCNEWS) — Some 1,396 flights were canceled at Chicago airports Sunday as a winter storm swept through the Midwest on its way east, threatening to bring more snow to parts of Ohio that have seen nearly three feet.
Flight-tracking website FlightAware reported that 1,396 flights were canceled in Chicago's O'Hare and Midway airports — about half arrivals and half departures.
Midway announced on Saturday that all Southwest flights would be canceled into Sunday morning due to the winter storm.
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Additional snowfall was forecast from Minnesota across the Great Lakes on Sunday, heading into parts of the Northeast by evening, Frank Giannasca, senior meteorologist at the Weather Channel, told NBC News. As much as 5 to 8 inches of additional snowfall was expected across the lower Great Lakes towards parts of the interior Northeast, he said.