Snow Tuesday for NYC, Philadelphia and DC SuburbsA storm swinging up from the South will spread snow from the Ohio Valley to the Northeast late Monday into Tuesday night
This map shows snowfall from the most likely scenario. If the storm ends up being very weak, less snow will fall over the entire region. If the storm ends up shifting its track farther east, a bit more snow would reach the I-95 corridor and little or no snow would fall over the Ohio Valley and central Appalachians.
By Alex Sosnowski
A storm swinging up from the South will spread a period of snow (and rain) from a portion of the Ohio Valley to part of the Northeast spanning Monday night into Tuesday night.
The premise of a single, moderate storm tracking northeastward entertained last week by AccuWeather.com meteorologists appears to be the most likely scenario.
Enough snow and slush will occur in some locations to slow travel and perhaps foil plans.
According to meteorologist Steve Travis, "While an exceptionally heavy snowfall is not foreseen, enough snow to sweep, shovel or plow will occur from northeastern Kentucky to northern West Virginia, northwestern Virginia, northern Maryland, southern and eastern Pennsylvania and northern New Jersey."
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Cities within this swath of snow that could receive up to 3 inches of snow include Morgantown, W.Va., Hagerstown, Md., Harrisburg, Reading and Allentown, Pa., and Netcong, N.J.
Major highways that can experience low visibility and road conditions ranging from wet to slushy to snow-covered for a time during several hours include portions of the Pennsylvania Turnpike, I-68 and I-78, as well as portions of I-64, I-70, I-80, I-81, I-83 and I-84.
Temperatures will be marginally cold enough for snow at critical levels in the atmosphere.
According to Meteorologist Brian Edwards, "This will likely be a situation where it will have to snow hard to accumulate on roads and sidewalks in the city of Philadelphia and in Manhattan."
Roads are most likely to be snow covered in portions of West Virginia, western Maryland and south-central Pennsylvania late Monday night into Tuesday morning, as the snow will get a jump start in this area, prior to slight daytime warming.
In addition, where snow lingers later in the afternoon and evening in portions of southeastern New England and perhaps Long Island, road surface temperatures may cool enough to allow a small amount of slush and snow on the roads and sidewalks.
Just enough precipitation can reach into part of the Ohio Valley to cause slippery spots Monday night, setting the stage for Tuesday morning's drive delays.
As is often the case with storms moving up from the lower Mississippi Valley, rain will fall on the southern flank. Locally severe thunderstorms will affect part of the Deep South.
It is quite possible a person driving from Center City in Philadelphia into interior southeastern Pennsylvania could encounter conditions ranging from wet roads to heavy snow and slushy conditions in as little as 10 miles.
This band of accumulating snow is likely to set up north and west of Washington, D.C., and Baltimore.
Snow can mix in around Washington and Baltimore, but with temperatures above freezing, the storm will be hard-pressed to bring an accumulation to road surfaces. It would have to snow very hard to do so.
Whether or not southern New England picks up more than an inch of snow will depend on how quickly the storm strengthens and spins over the Atlantic.
Southwestern New England is forecast to be north of the heavy precipitation. The crest of the storm may pass during the middle of the day.
Perhaps if the storm gets its second wind Tuesday night, heavy snow could reach back into southeastern Massachusetts, Long Island, Rhode Island, part of Connecticut at the last minute with a few inches of the white stuff.
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