It is not just dramatically colder air headed back to the Midwest and Northeast, but also snow in some communities.
Snow blanketing Nebraska will continue to spread northeastward Sunday night through Monday morning across the Upper Midwest.
The snow will do more than make an appearance. A swath of 1 to 3 inches will streak through northern Iowa, far southeastern Minnesota, central Wisconsin and Upper Michigan.
This includes Mason City, Iowa, Rochester, Minn., La Crosse, Wausau and Green Bay, Wis., and Marquette, Mich.
It is not out of the question for a few pockets of snow totals in excess of three inches.
The majority of the snow will accumulate on grassy surfaces and will initially melt on roads due to recent warmth. However, with the snow falling at night and arrival of colder air, some roads will turn slushy. Slick conditions will even develop where the snow comes down heavily for a time.
Temperatures will drop below freezing in many areas Sunday night, but the combination of warmth stored up in the roads and gusty winds working to dry things out should help prevent most of the slush from turning icy.
The exceptions may be where slush and/or wet spots remain on bridges and overpasses and where temperatures dip well into the 20s, which would be across Nebraska and northern Iowa Sunday night.
Another band of snow will spread from the panhandles of Texas and Oklahoma to southwestern and central Kansas Sunday night.
This snow will also head northeastward Monday through Monday night, tracking across the mid-Mississippi Valley to the central Great Lakes and initially falling as rain.
During the day on Monday, snow totals will generally be confined to a coating to an inch and on grassy surfaces from eastern Kansas to northern Missouri to northern Illinois.
Some of these same areas dealt with severe thunderstorms to close out the weekend.
The snow will then intensify across the eastern Great Lakes Monday night. Similar to Sunday night, roads will initially be wet before turning slushy. If any of the slush freezes, it would first happen on bridges and overpasses.
A coating to an inch will whiten Chicago--roads will be mainly wet--later Monday through Monday evening. Farther to the east in Toledo, Ohio, and Detroit, the snow will accumulate an inch or two.
Rain will then mix with or end as wet snow in a west-to-east fashion across the central and northern Appalachians of the Northeast Tuesday through Tuesday night.
While a substantial amount of snow is not expected, some places could still pick up a quick coating to a couple of inches. The higher terrain has the best opportunity of receiving the accumulating snow, mainly on grassy surfaces.
Cold air will not catch up to the rain quick enough to return snow to the I-95 corridor of the Northeast.
Before the snow falls, enough rain will pour down to heighten concerns of flash flooding in the Midwest and Northeast where snow is still covering the ground or where rivers remain swollen from recent rain.