Chicago O'Hare International Airport was the most weather-impacted airport by far, with over 930 cancellations and over 750 delays as of Saturday afternoon. Flights leaving to O’Hare are delayed an average of five hours due to snow and ice, according to the FAA.

Some parts of Massachusetts are expected to see a heavy snow storm starting on Tuesday, according to National Weather Service forecasts — with some impacts hitting the Boston area.

GRAND RAPIDS, MI - The National Weather Service has issued a Winter Storm Watch that will stretch from Monday afternoon through Tuesday morning for three counties along the Lake Michigan shoreline. The Winter Storm Watch covers Ottawa, Muskegon and Oceana counties, including the cities of Grand Haven, Muskegon, Jenison and Hart.

Milwaukee received up to 12 inches of snow, prompting a snow emergency and alternate-side parking rules as residents and crews work to clear streets.

Two new snowstorms are expected to hit Colorado this week — one already brewing in the mountains Sunday morning and another expected to arrive midweek, according to forecasters.

The first winter storm of the season could bring anywhere between 1 and 8 inches of snow across the Lehigh Valley and Poconos.

Residents in Minneapolis will have until 9 p.m. to make sure their vehicles comply with snow emergency restrictions as crews work to clean up Saturday's snow.

Lake effect snow is in the forecast on Monday and into Tuesday. This could make Tuesday morning's commute slow along Lake Michigan.

In the Milwaukee area, moderate to heavy snowfall is expected until about 9 p.m. with about one inch of snow accumulating per hour, NWS Meteorologist Mark Gehring told the Milwaukee Journal Sentinel. Lighter snow will continue all night, but forecasts do not show significant accumulations after 9 p.m.