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Nor'easter to whip New England, Atlantic Canada with more heavy snow

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While a midweek storm will spare much of the northeastern US from receiving heavy snow, the storm will hit northern New England and neighboring Canada hard with more snow and wind.

The storm threatens to deposit another foot (30 cm) of snow in part of the region, following the 1 to 2 feet (30 to 60 cm) of snow that fell at the start of the week.

Even in areas that escape the heavy snow, winds can become strong enough to cause minor travel problems over much of the northeastern U.S. during the middle and latter part of the week.

"Two storms, one from the South and one from central Canada, will merge near northern New England and the Maritime Provinces of Canada," according to AccuWeather Senior Meteorologist Brett Anderson.

Static US Midweek

The southern storm will spread drenching rain and locally severe thunderstorms over the Southeastern states on Tuesday and Wednesday.

A great deal of eastward momentum with the Southern storm and its moisture will prevent heavy snow and rain from falling on most of the mid-Atlantic region.

However, soaking rain will fall on part of southern Virginia and part of the Delmarva Peninsula.

Static Storms Merge

Meanwhile, the storm from central Canada will have limited moisture to work with until it reaches northern New England.

As a result, only intermittent snow will spread across the Great Lakes with rain and snow showers over the interior mid-Atlantic during Tuesday night and Wednesday.

As the storms merge near the New England coast, snow will become steadier and heavier over parts of Vermont, New Hampshire and Maine on Wednesday.

"At this time, it looks like the bulk of the storm will be north of Boston," Anderson said. "The worst of the storm will be from Maine to New Brunswick and Nova Scotia on Wednesday into Thursday."

Static midweek snowstorm impacts

Enough snow to shovel and plow is likely.

As winds increase, blowing and drifting snow will add to travel difficulties for motorists. Some roads that opened briefly by midweek may be shut down again due to treacherous conditions. Some communities will face a major challenge as to where to put all of the snow from the series of major storms.

Over parts of Massachusetts, rain or a mix of rain and snow may change to a period of snow and could result in slippery travel later Wednesday.

While portions of upstate New York and western and northern Pennsylvania will escape the bulk of the snow, intermittent snow can occur on Wednesday ahead of lake-effect snow squalls Wednesday night into Thursday.

The storms will merge too late and too far to the northeast to bring significant precipitation to the Great Lakes, mid-Atlantic and southern New England regions. However, winds will kick up from Wednesday to Thursday.

"While winds will not be as strong as that of this past Sunday night to Monday, they can still cause some airline delays and challenging crosswinds for high-profile vehicles," Anderson said.

In the wake of the storm, parts of northern New England and Atlantic Canada will have a yard (meter) or more of snow on the ground.

"This much snow on the ground over such a large area could pose a problem in the weeks ahead," Anderson said. "Anything less than a gradual thaw could lead to flooding problems."

The weather during next week is projected to feature some days with temperatures above freezing and nights below freezing, which could slowly melt some of the snow.

The melting and freezing cycles could lead to areas of black ice on roads and sidewalks and damaging ice dams on roofs.