Significant Snow From the Great Lakes to Atlantic Canada

By Brian Edwards, Meteorologist
January 20, 2013; 8:25 AM ET
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Play video A look at the short-term weather across the Northeast and Great Lakes.

A clipper system will drop several inches of snow Sunday from the Great Lakes through Atlantic Canada.

This clipper system is responsible for ushering in the massive Arctic outbreak coming into the northern part of the country.

The system will track from the Great Lakes into Atlantic Canada by Sunday night, producing a swath of moderate to heavy snow north of its track

Snow developed Saturday evening from Ottawa, Ontario through Montreal and Quebec City, Quebec and will fall, heavy at times, through the day on Sunday.

The snow will gradually taper off to snow showers across the St. Lawrence Valley during the day on Sunday, but not before leaving a swath of 3-6 inches.

Farther to the north over the central portion of Ontario and Quebec, upwards of a foot of new snow can accumulate before the heaviest snow tapers off.

Back into the Great Lakes of the U.S., additional snows will kick up behind this clipper Sunday as much colder air moves over the warmer lake waters.

Lake-enhanced snow will accumulate 6-12 inches over the U.P. of Michigan. Lesser amounts of 3-6 inches are likely over the northwestern portion of Lower Michigan.

Lakes Erie and Ontario will also become quite active with lake-enhanced snow into Sunday with a zone of 3-6 inches of accumulation likely just downwind of the water.

Not only will the snow kick up, but fresh, arctic air will flow into the mid-Atlantic and New England during the day on Sunday, bringing an end to the mild weather.

This is the same batch of air that will produce RealFeel temperatures of -50 degrees over the northern Plains.

As the cold air continues to pour over the Great Lakes into early next week, more snow will accumulate downwind of the lakes, causing snow-covered roadways and difficult travel.

Check out the Winter Weather Center for the latest snowfall maps and news stories on the impending cold and snow.

There is also the possibility for a quick-hitting snowfall for parts of southern New England, including Boston and Providence Monday night into Tuesday.


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