Tuesday will easily be the smoothest weather day out of the next week. High pressure will be briefly in control. Expect partly to mostly sunny skies with highs closing in on 40°.
Tuesday night, clouds thicken up and snow approaches southern Vermont & New Hampshire by morning; lows will be in the upper 20s. During the day Wednesday, snow spreads north and should generally be light during the day but the evening commute will be slippery. Temperatures will be tricky and we may make it warm enough in spots to have some light rain mix in. Wednesday night through Thursday morning is when the storm cranks the hardest. There will be waves of moderate to heavy snow, especially along & east of the Greens. Driving around during that time will be difficult, expect snow covered roads and low visibility. There will be closures and cancellations.
There will be a drop off in snow totals in north western New York. Expect 1-3″ near the St. Lawrence River, 3-6″ in north central New York, and 6-12″ in most of Vermont & New Hampshire. The Champlain Valley will likely be on the lower end of the 6-12″ range, probably closer to 6-8″. At the same time, parts of Grafton & Sullivan counties in New Hampshire may go over a foot. There will be further fine tuning to the snowfall map on Tuesday.
Snow will continue, but much lighter, over northern Vermont, New York and New Hampshire on Friday. We could squeeze out another few inches, especially in the mountains. Rain and snow showers then continue over the weekend but coverage should be pretty isolated and gradually become pinned to the mountains. If you’re going to the Mardi Gras parade, keep your plans. By the end of the weekend, northern mountains may finish with close to 2 feet of new snow!
Have a great week!
-Chief Meteorologist Sean Parker