Surface chart, radar and satellite
The high pressure is pushing east Sitting over the open Atlantic Also heading east. Looking at the chart and radar we can see the system approaching into the Great Lakes. The system is going to bring a general low impact snow storm across most of the region. The setup supports the idea of the northern component basically stalling and will likely fail to have a big impact into Maine. The biggest story over the weekend is going to be the cold.
We have the low pressure up over lake Ontario. This is going to start transferring it's energy to a coastal low. During the process of this occurring We're going to see a boundary set up over southern New England. This boundary will be associated with that inverted trough I've been talking about. This will set up a band of more in the way of steady moderate to perhaps heavier snow across parts of that area. Across New England the snow showers will be slowly winding down Saturday evening.
Idea on snowfall accumulation
General snowfall of a dusting to maybe half an inch or so across Eastern Maryland, most of Delaware including Baltimore and Washington DC. A general snowfall of a dusting to 1 inch or so for New Jersey into southeast Pennsylvania extending into part of southeastern New York State Including Atlantic city Philadelphia Trenton, Newark up into Poughkeepsie. A dusting to perhaps 2 inches for the central Hudson valley. 1-3 inches for most of western Pennsylvania including Pittsburgh, northern Pennsylvania and northeast Pennsylvania up into interior New York State and a large part of New England. The spine of the Appalachians East of Pittsburgh and southern into central Pennsylvania Could see 3-6 inches. A general 4-8 inches for southeast of lake Ontario, 6-12 inches along the south shore of lake Ontario., east of lake Ontario into the western Adirondacks 3-6 inches of snow with some locally higher mounts possible. For the Taconics into the Berkshires and Greens 4-8 inches, The eastern Adirondacks, Vermont into New Hampshire 2-4 inches is possible. Eastern New Hampshire Into far western Maine 1-3 inches. The rest of Maine a dusting to 1 inch or so. For New York City up into most of Connecticut and much of long island 1-3 inches. It looks like 3-6 inches with locally higher amount are possible across far eastern Long Island, southeast Connecticut up across a large part of Rhode Island into southeast Massachusetts including Boston as well as the Cape, Nantucket and the other off shore islands.
Winds will be 10-20 miles an hour gust of 30-55 miles an hour possible. The winds blowing so strong they will be drifting the snow around. The area most likely to be bothered by the strongest wind gust will be across southern New Jersey, Delaware, Eastern Maryland and part of southwest Pennsylvania.
We're going to have an out of boundary pushing across the region. With the boundary We could see some heavier squalls that could drop visibility to near 0 as the boundary is moving across your area. These heavier squalls won't last a long time perhaps only 10-20 minutes. The arctic air coming in Is going to be as cold as we have seen so far this winter. And these kind of temperatures frostbite can set in over a matter of minutes. So limit your time outdoors and if you must be outdoors dress warm and in layers and keep exposed skin covered as much as possible. Check on the elderly and remember if you are cold your pets are cold So make sure you bring them in.
