Northeast bracing for a powerful Nor’easter that could dump up to two feet foot of snow in many areas, create blizzard-like conditions, bring down tree branches, and trigger widespread power outages.
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Heavy snow and a wintry mix will produce hazardous travel from portions of the Great Lakes and Ohio Valley to the Mid-Atlantic, including the Washington D.C., Baltimore, Philadelphia, New York City and Boston areas. In the West, a series of systems will produce several days of lower elevation rain, heavy along the central West coast, and heavy mountain snow.

Dark Blue, Pink and Purple indicate affected areas

In Chicago overnight there were reports of 1 inch of snow per hour snowfall rates.

As the storm moves eastward, New York, New Jersey and Connecticut could see heavy snow falling at the rate of one inch to 3 inches an hour tomorrow, continuing along the I-95 corridor throughout the day.

Much of the region could see blizzard-like conditions, with a foot to 18 inches – or even more – of snow.

Winter storm warnings were in effect Sunday from North Carolina to Pennsylvania and New Jersey. Winter storm watches remained in place for other parts of the Northeast and New England, including Boston.

Although higher elevations will suffer the heaviest snowfall totals, New York and Philadelphia have a good chance of seeing 6 to 12 inches of snow with Washington, D.C. and Boston looking at totals in the 3-inch to 6-inch range.

Snowfall, up to a foot, was forecast to start in Massachusetts on Monday morning and then head for northern New England later that night.

The “deep storm,” as the Weather Service puts it, will bring rain/freezing rain over parts of the Central Appalachians and the southern Mid-Atlantic, then move northeastward along the coast by Tuesday.  Snow on the backside of the system will extend into the Southern Appalachians on Monday into Tuesday.

The snow will then move northward out of the Mid-Atlantic into parts of the Northeast and New England by Monday into Tuesday morning.

Meanwhile, multiple fronts will move into the Pacific Northwest today, moving inland to parts of the Northern Intermountain Region and Central California by Tuesday. Rain and some higher elevation snow will develop over parts of Northern California and the Pacific Northwest through early Tuesday.

By Tuesday morning snow levels will lower over the region, with snow advancing across the Cascades, Siskiyou, and Shasta Mountains. Additional snowfall of 1 to 2 feet is expected along the Cascades, with even more snow on top of the feet of snow that smothered California mountains last week.

https://origin.wpc.ncep.noaa.gov/discussions/hpcdiscussions.php?disc=pmdspd

https://www.msn.com/en-us/weather/topstories/from-ho-hum-to-whopper-major-storm-on-its-way-to-northeast/ar-BB1dg9Oh?li=BBnb7Kz

https://www.msn.com/en-us/weather/topstories/major-winter-storm-moves-from-midwest-to-the-east-coast-to-start-the-week/ar-BB1dfPNI?li=BBnb7Kz

https://www.accuweather.com/en/winter-weather/winter-storm-bearing-down-on-mid-atlantic-and-northeast/890164

https://www.usatoday.com/story/news/nation/2021/01/31/weather-forecast-snow-storm-sweeping-east-after-slamming-west/4330371001/

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January 31, 2021 at 12:47PM