Cold air will persist and contribute to wintry hazards ranging from hypothermia risk to black ice and more snow in the northeastern United States into this weekend.

The circulation around the departing nor'easter will pull cold air across the Great Lakes and into New England and the mid-Atlantic region.

Cold air to be relentless for those without power

For the hundreds of thousands of households still without power in the wake of the recent storm, nighttime temperatures are forecast to dip to shivering levels in the teens and 20s F.

People with no source of heat should seek assistance. Consider sheltering with friends, relatives or hotels where heat is available. For those people using generators, be sure to use in a well-ventilated area outdoors, away from windows, doors and intake ducts.

AccuWeather RealFeel® Temperatures may be as much as 20 degrees lower than the actual temperature.

The conditions into Saturday can be uncomfortable for those spending time outdoors and not properly dressed.

Prolonged exposure to these conditions can lead to hypothermia and be life-threatening, especially for the elderly and those in poor health.

Risk of accidents, slip and fall incidents to increase in storm's wake

Motorists and pedestrians should be wary of patches of clear (black) ice in the wake of the storm.

This thin layer of transparent ice can form when air temperatures are slightly above freezing (32 F).

Untreated surfaces that were made wet by natural melting may freeze quickly during the late afternoon and evening hours and remain icy into the first few hours of daylight the following day.

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Areas that are shaded from the sun the longest, as well as elevated surfaces may become icy first.

Extensive swath of flurries and snow squalls to follow the storm

Even though the snowstorm has left much of the region, some areas may have to contend with a fresh snowfall through Friday.

The snowfall will not be limited to the traditional lake-effect regions.

"Motorists taking to the roads from the Great Lakes to the central Appalachians should be prepared for sudden snow squalls," according to AccuWeather Senior Meteorologist Dan Pydynowski.

Rapidly changing weather conditions may occur on major highways such as I-64, I-68, I-70, I-77, I-79, I-80, I-81 and I-90. All it takes is a quick coating of snow to create dangerous conditions for those traveling at highway speeds.

Major cities that are most likely to be affected by heavier snow squalls include Jamestown, New York, Cleveland and Youngstown, Ohio, and Pittsburgh and Erie, Pennsylvania.

Some of these snow showers are likely to reach coastal New England on Friday. A stray snow shower may also survive the trip to the coastal mid-Atlantic.

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