A series of snowstorms rolling southeastward from western Canada will continue to affect a heavily populated area of the Midwest, centered on the I-80/90 corridor.
The most significant and essentially the caboose in the storm train will swing through Tuesday into New Year's Day.
Due to the frigid air in place, most of the snow will stick to the roads making for slippery travel to I-70 and as far south as I-64.
Expect flight delays and cancellations due to deicing activities at local airports and due to aircraft and crews delayed from cities being hit with heavy snowfall in the East.
The storm will focus in the East Thursday into Friday, so the airline issues locally may last through the end of the week and could cause problems for those planning on resuming business activities, returning home from vacations or heading back to school.
A general swath of 3 to 6 inches of snow is forecast to fall from parts of Iowa and northern Missouri, eastward to northern and central portions of Illinois, Indiana and Ohio to western Pennsylvania. Cities in the path of the moderate snowfall for New Year's Eve and New Year's Day activities includes Des Moines, Iowa; Chicago; Fort Wayne, Ind.; Cleveland and Toledo, Ohio; and Pittsburgh.
A zone of 1 to 3 inches of snow will fall farther south over Missouri through the Ohio Valley and into the central and southern Appalachians.
A few inches of snow will fall on Detroit and Ann Arbor, Mich., Milwaukee, St. Louis, Indianapolis and Cincinnati. Crews may need to clean off the rink at the Winter Classic in Ann Arbor New Year's Day.
A sharp cutoff to the northern edge of the snow is likely, due to the magnitude of the dry, frigid air sitting across the northern tier of the nation.
The snow will stay south of Minneapolis, Madison, Wis., and Flint, Mich.
In the wake of the caboose in the storm train, lake effect may continue to bring locally heavy snow to areas along the western and southern shores of Lake Michigan, including Chicago and Milwaukee, along the southern shore of Lake Superior and the southwestern shores of Lake Huron on Thursday.
Along the northern tier of the United States, temperatures may fail to get above zero until Friday.
Another blast of brutally cold air is forecast to sweep southeastward from Canada during the first half of next week.