Fox News Weather Center

LIVE: Fast-Moving Storm Slams Minneapolis, Chicago, Detroit

A storm system is quickly dumping heavy snow and ice along parts of the Midwest and Great Lakes region. This system will continue to push to the east and will impact the mid-Atlantic and New England on Tuesday.

Nearly 1,000 flights have been cancelled to start the day on Monday, mainly out of the Chicago O'Hare and Midway airports and St. Louis. Road travel will also be a concern in these areas as snow and ice will make for slick conditions.

Up to 6 inches of snow are possible for many major cities, including Chicago, Detroit and Pittsburgh.

"The heaviest snow on Monday is expected to fall in Wisconsin, northern Illinois and Michigan, where some locations may receive a half of a foot," according to Meteorologist Dan DePodwin. "Lengthy travel delays are likely in Chicago, especially during the typically busy late-day commute."

Following the storm, a brief warmup will take place for a few days before another round of cold air moves in.

REPORTS: (All times are listed in EST)

9:25 a.m. ET Monday: The NWS office in Polk City, Iowa, reports about 2 inches of snow and an instance of thunder this morning.

9:15 a.m. EST Monday: Traffic accidents mount in the St. Louis area as snow and ice accumulate:

9:00 a.m. EST Monday: FlightStats lists more than 600 flight cancellations out of O'Hare International Airport in Chicago.