A springlike storm will continue to produce a swath of snow and ice over the northern tier of the northeastern United States into Wednesday.
Warmer air to the south will visit some locations only briefly and may fail to show in others over the region.
Several hours of ice or a wintry mix will occur from the central part of the Lower Peninsula of Michigan to much of upstate New York to central New England during Tuesday.
Motorists and pedestrians should use caution as some surfaces that appear wet may be icy.
A moderate snowfall, on the order of 3 to 6 inches (8 to 15 cm), is in store from Fargo, North Dakota, and Duluth, Minnesota, to Quebec City, Quebec, and Bangor, Maine.
"People in Burlington, Vermont; Concord, New Hampshire; and Portland, Maine; should expect a formidable winter storm with slippery travel," according to AccuWeather Meteorologist Steve Travis.
A quick change to rain will occur over Michigan, the southern tier of New York and southern New England.
Farther north, enough snow will fall to make roads slippery from eastern North Dakota and northern and central Minnesota to northern Wisconsin, northern Michigan, northern New York state and northern New England.
In part of northern New York state and northern New England, snow will transition to an icy mix. The weight of the snow and ice could bring down some tree limbs and cause sporadic power outages.
Long stretches of Interstate 81, I-87, I-89, I-91, I-93 and I-95 will be slippery.
On Wednesday, the wintry conditions may linger in portions of Maine, Quebec and New Brunswick. Meanwhile, bands of lake-effect snow will develop over the upper Great Lakes region.
As one storm leaves, a new storm will enter the picture in part of the eastern U.S. spanning Wednesday night into Thursday. This second storm of the week will target the major cities from near Washington, D.C., to Philadelphia, New York City and Boston with snow and the potential for significant travel disruption.
In parts of New York state and New England, the storm on Thursday will overlap areas hit with snow and ice from Tuesday to Wednesday.