Storm spreads snow into northeastern US with slippery travel after hitting Midwest

By Renee Duff, AccuWeather meteorologist
By Kristina Pydynowski, AccuWeather senior meteorologist
December 12, 2017, 2:30:49 PM EST

An Alberta clipper storm will lay a swath of snow and slippery travel in the Northeast into Tuesday evening.

Northern New England may be hit particularly hard with snow and travel disruptions from the storm.

NE regional 12/12

Accidents ensued as the snow spread into the Detroit area during the midday hours of Monday, according to WWJ Newsradio 950.

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Unlike previous clipper storms which weakened and deposited little snow east of the central Appalachians, the right ingredients will come together for this clipper to gain moisture and strength as it pushes toward the Atlantic coast into Tuesday evening.

Residents should prepare for travel delays to mount during this time.

“Northern New England could get hit the hardest,” AccuWeather Lead Long-Range Meteorologist Paul Pastelok said.

The interior of northern New England and the St. Lawrence Valley may measure a half of a foot or more of snow. The snow will clog roads and create difficult travel.

Static Snowfall Into Tuesday Evening

Residents of Burlington, Vermont, and Montreal, Canada, should prepare for school cancellations and disruptions to other daily routines.

Some of the snow could get blown around as winds intensify, causing visibility to be drastically reduced on the roadways.

The track of the storm is expected to pull enough mild air across areas east of the Appalachian Mountains for any snow at the storm's onset to mix with or even change to rain. There may also be a brief period of ice prior to any rainfall.

While snow amounts will be less than in areas farther north in these areas, roads may still turn slippery or slushy for a time in Albany, New York; Boston and Worcester, Massachusetts; Concord, New Hampshire; and Portland, Maine.

"As the leading edge of arctic air advances eastward, snow showers will be accompanied by plunging temperatures and a freeze-up in much of Ohio, West Virginia, western Maryland, western and northern Pennsylvania and western and central New York state," according to AccuWeather Senior Meteorologist Alex Sosnowski.

"Motorists traveling along portions of the Pennsylvania Turnpike, Interstate 68, I-70, I-77, I-79, I-80, I-81, I-86, I-90 and I-99 should be prepared for rapid changes in visibility and road surface conditions," Sosnowski said.

Airline passengers should prepare for possible delays and cancellations. Pittsburgh is among the major airports that may be adversely affected by the advancing snow and temperature plunge.

Any snow that flies in Philadelphia and New York City is not expected to accumulate.

While not all of the Northeast will receive disruptive snow from this clipper, the coldest air so far this season will sweep across the entire region in the storm's wake by Wednesday.

Any standing water or slushy areas can turn icy as the colder air arrives. Residents should not delay in clearing snow that is heavy and wet in nature across northern New England as it will eventually freeze solid.

Even after the clipper storm departs, the arctic air will trigger intense bands of lake-effect snow that are notorious for triggering chain-reaction accidents into Wednesday.

Lake effect Dec 11 pm

Another clipper storm is expected to follow and may drop a swath of snow from the western Great Lakes to the mid-Atlantic late in the week. More incidents of slippery travel are expected.

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