Despite a rainy Wednesday in most areas, snow will now continue to blanket the Northeast's interior into early Thursday morning.
The same storm that blanketed Tennessee and Mississippi with snow is delivering accumulating snow to the millions of people from central Pennsylvania to Maine and neighboring Canada.
The fast-moving storm will spare the I-95 corridor the worst of the snow, but the preceding rain has heightened the concern for travel delays and flooding. Roads flooded in western parts of Virginia Wednesday evening.
The heaviest snow will fall from central Pennsylvania to interior Maine and New Brunswick. Part of the I-81 corridor is receiving significant snow.
The storm is putting down enough snow to shovel and plow in these areas. However, since the ground is warm from previous days and weeks, the greatest accumulation will be on non-paved surfaces such as cars, lawns, roofs and trees.
As air temperatures fall with the snow, road surface temperatures will cool, allowing a slushy, slippery accumulation.
Bridges and overpasses would be the first road surfaces to turn slick.
Adding to the misery for motorists will be poor visibility as the snow comes down heavily for three to six hours.
For a larger version of this map, please visit the AccuWeather.com Winter Weather Center.
Roads in the city limits of Washington, D.C., Philadelphia, New York City and Boston will remain wet despite the rain ending as wet snowflakes.
Slippery spots from more significant snow can slow travel for a time in each city's northern and western suburbs.
From Scranton, Pa., to Albany, N.Y., to Lebanon, N.H., several inches of snow is in store with a real slushy mess.
The bulk of the snow has departed the spine of the Appalachians and will continue to shift from the mid-Atlantic into New England early Thursday morning. The snow will totally depart Maine soon after sunrise.
The snowstorm will spend Thursday pushing northward from New Brunswick to Labrador.
In the snowstorm's wake across the mid-Atlantic and New England on Thursday, northwest winds will work to melt the snow and dry the roads. However, areas that remain wet and that are left untreated will become icy Thursday evening.
In addition to travel delays on roadways and at airports, school delays and closings are possible. Some parents may have to make alternate plans for daycare.
On a lighter note, many area skiers have been waiting for a decent fresh dose of natural snow to hit the slopes.
In addition, enough chilly air will follow the storm over the mountains to allow resorts to add to their base of snow for a few days.
In parts of western and northern New York state that miss out on snow from the storm, lake-effect snow will bring some of the white stuff to traditional areas late in the week.
According to Meteorologist Heather Buchman, "Buffalo could have their most significant snowfall of the season so far as a result."
AccuWeather.com Senior Meteorologist Kristina Pydynowski contributed to the content of this story.
This story was originally published on Tues., Dec. 6, 2011, and has been updated through Wed., Dec 7, 2011.
The spring shift in weather affects annual behavior of animals as many emerge from hibernation and others prepare themselves for migration.
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The weather pattern into this weekend will bring temperatures fairly typical for this time of the year around Pittsburgh.
The weather pattern through this weekend will bring temperatures fairly typical for this time of the year around Philadelphia.
The weather pattern through this weekend will bring temperatures fairly typical for this time of the year around Washington, D.C.
The weather pattern through this weekend will bring temperatures fairly typical for this time of the year around New York City.
Helena, MT (1960)
19.4" of snow; up to 30" in higher elevations.
Bismarck, ND (1962)
91 degrees -- heat wave in the Plains.
Mathis, TX (1990)
A stationary thunderstorm dumped about 8" of rain in two hours at a grain elevator just west of town.