Although Friday rose with temperatures warm enough to drop raindrops for most of New England, some communities in the far north along the Canadian border were cold enough to already see a combination of rain and light falling snow including Newport, Vermont.
This is just the beginning of a trend of rain turning into snow and colder air coming into New England in conjunction with a storm center developing over the waters just below. eastern New England along a slow but well-defined cold front drifting from west to east.
For the most part, the rain that spreads Friday will continue to fall lightly but steadily for much of the day, raising no flooding issues but slowing road travel and making Black Friday shopping soggy.
Winds will remain fairly light throughout the day, but will start to increase from the west as the aforementioned storm intensifies while moving over the Gulf of Maine late in the day through Friday evening, carrying heavy loads. cooler air in New England both above and above ground. With the cold air coming high in the sky first, the mountain peaks begin to accumulate snow first, but the snow level drops aloft by Friday afternoon, eventually reaching the valley bottoms in the northern part of the region. New England at sunset and continuing to walk slowly south and east on Friday evening, providing a mix and change of snow even for northern Connecticut to the greater Boston area in the evening until the first part of the night.
In northern New England, the heavy and wet nature of snow can lead to power outages where accumulations exceed four inches, which is expected in and around many VT, NH, and ME mountains, and highways. will deteriorate for winter driving conditions.
Snow will struggle to stick to southern New England roads after a day of high temperatures in the 1940s and with air temperatures barely reaching freezing overnight Friday night, but in places where two or more inches of snow falls on the grass, that’s enough ice crystals have fallen on the road to produce loose, slushy snow on the roads, which will likely include the Monadnock area and possibly northwest Worcester County… and maybe parts of southern NH. In eastern MA, even though the snow is melting on the roads, wet roads can get just cold enough at 5 or 6 a.m. on Saturday for patchy ice as the air temperature drops.
The cold air on Saturday will maintain daytime highs below 40 degrees for the most part, and a westerly wind gusting to 35mph will keep the wind chill in the 1920s, even during the hottest part of the day, making the sun ineffective as the mountain snow showers continue. The wind eases on Sunday but the air should be just as cold and the sun will fade behind more and more clouds as an energy disturbance approaches at altitude.
This disturbance is one that was predicted for the possible development of a storm along our coast last week, but continues to look flat enough and rapid enough to prevent the development of a fairly rapid storm, rather likely to bring some light snow in upstate New York and Pennsylvania on Sunday, then some snow or mixed snow and rain showers in New England overnight Sunday evening through Monday.
The fresh air is expected to linger for most of the week, not breaking until the end of the week in our exclusive 10-day First Alert forecast.