An upper level low pressure system will move out of the Northern Plains today and enhance another low pressure system that is tracking east toward Kentucky.
These systems are bringing rain, a wintry mix, and widespread snow to the Midwest, and will eventually move to the East Coast. As of early Tuesday afternoon, winter storm warnings are in effect from Northern Minnesota, down through Chicago, over through Pittsburgh, and into Northern Virginia.
Over 10" of snow has already been reported in Northern Minnesota. The snow is forecasted to leave 10" in parts of Northeast Iowa as well.
Heavier snow will arrive in Chicago and Northern Indiana Tuesday afternoon, with up to 8" of snow forecasted. By this evening, the heavy snow will have spread through Indianapolis and Central Indiana, also dropping up to 8" of snow.
Tonight, parts of Ohio can expect the heaviest snow. For cities such as Dayton and Columbus, snow totals of up to 8" can be expected.
As the system heads to the east, it will bring heavy snow to the Pittsburgh area through tomorrow morning, where up to 8" is also forecasted. Tonight and tomorrow will bring a wintry mix, along with periods of heavier snow toward Baltimore and Washington, DC. Over a half a foot of snow is forecasted to fall in this area, with up to 18" in the higher elevations of Virginia and West Virginia.
Most of Michigan is missing out on this winter event. The far Southwest corner of our state will see a couple inches of snow, but mid-Michigan will see mainly the clouds from this system. Flurries will be possible this evening and overnight, along with a chance for a light wintry mix in Northern Lower.