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Boston snow forecast8/9/2023 ![]() ![]() That means northern Worcester County, the Berkshires and into much of southern Vermont, New Hampshire and southern Maine. Some higher totals are likely where we don't mix. This storm will produce highly variable snow amounts: a coating to an inch along the south coast and the Cape and Islands, an inch or two along the South Shore, 2-4 inches for Boston and surrounding cities and towns, 4-6 inches north and west of the city. That would coincide with snowfall rates of 1 inch per hour. This could drop as low as 0.25 mile briefly pre-dawn Saturday. Visibility will likely be reduced to around 0.5 mile at times overnight Friday through Saturday morning. After that, road conditions should improve dramatically given treatments and plowing. The primary impact will be on travel overnight Friday into early Saturday. (Graphic courtesy of NBC10) Road conditions With the stronger March sun angle in place now, little additional accumulation is expected after Saturday morning. Everything tapers off during the afternoon the back edge should arrive between 3 and 5 p.m. Areas of snow are likely to continue at times through Saturday afternoon, turning lighter especially after 8 a.m. The temperature should hover right around - or just shy of - freezing for the duration of this event. The precipitation will come down hard enough at times that the atmosphere will essentially cool itself and a change back over to all snow is likely, particularly inland. Some mixing with rain will occur along the south coast to Cape Cod, as well as much of eastern Massachusetts to about Route 128. (Graphic courtesy of NBC10) (Graphic courtesy of NBC10) It will snow at a steady clip for several hours, though some mixing with sleet and flip-flopping between the two is possible overnight. But the leading edge of the steadier precipitation should arrive between 10 p.m. Some light rain/snow showers may arrive between 7 and 9 p.m. I expect very little snow south of where the rain/snow line and mixing will be, and a more sizeable snowfall event north of that. What is clear is that there will be a very sharp gradient in the snowfall accumulations. It will come down to a fluctuation between a degree or two. Seems like a simple question to answer, but this layer of "warmer" air above us will determine when and where we change to sleet and rain - and for how long that occurs. The trickiest part of the forecast is this: how much "warmer" air above the surface will move in? From there, the system will intensify as it passes over Cape Cod Saturday afternoon before pulling away from the region. The storm center is strengthening over Arkansas Friday morning and will continue to move northeastward, into Ohio by the evening.Īt the same time, a secondary low will develop along the south coast of New England Friday night, at which point it will become primary storm center by Saturday. This system was responsible for widespread snow and rain, damaging winds, blizzard conditions and record cold from southern California to the southwest U.S. This means another round of wintry weather is on the way for New England. Here we are again! The calendar may say March now, but our active weather pattern continues.
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