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Some Light Snow This Afternoon Through Tonight & Mon Morning For Western & Especially Central Mass

For This Afternoon: An area of low pressure now located over the upper Great Lakes region will move east-southeastward this afternoon reaching western New York State by this evening. Skies this afternoon will be cloudy and there could be some very spotty very light snow at times with a dusting of snow possible in mostly the Worcester Hills. Temperatures this afternoon will be cold as they rise from around 30 Degrees to near 35 Degrees. Tonight & Monday: The low pressure system over western New York State is expected to weaken as a new low pressure system takes shape just southeast of the Cape. The big question with the forecast for tonight & Monday is whether a trough of low pressure will form, which would connect the two low pressure systems. If this trough does form and strengthen some, it could lead to a several hour period of moderate snow across eastern Worcester County (including Uxbridge, Millbury, Shrewsbury, Westborough) with upwards of 2 to 4 inches of snow accumulation late tonight through at least Monday morning. On the other hand, if the two low pressure system remain separate with no interconnecting trough, it would mean very spotty light snow with minimal snow amounts across the entire area. Here Are My Thoughts: Across Western Mass, I think that there could be some spotty light snow at times that persist throughout tonight and Monday morning with spotty dustings of snow. For Central Mass, along and west of the I-190/I-395 corridor, light snow is expected at times throughout tonight and Monday morning with snow accumulations of up to one inch possible. For areas east of the I-190/I-395 corridor, I think that we may see light snow this evening become a steadier snow after midnight tonight. A period of moderate snow is a possibility from very late tonight until about mid-morning Monday. Some snow may persist into early Monday afternoon before it comes to an end. Snow accumulations of 1 to 2 inches look possible with isolated 3 inch snow amounts not out of the question. Heads up for anyone heading towards Boston and the 128/I-95 corridor, I have concerns that a band of moderate to even heavy snow could set up near and inside of 128 during the Monday morning commute. In fact, some of the higher resolution weather guidance are pointing towards upwards of 3 to 6 inches of snow accumulation near 128 and along the north shore. At this point though, I’m thinking more of a 2 to 3 inch snowfall with isolated 4 inch snow amounts possible. I cannot emphasize enough of how uncertain of a forecast this is. Trough induced snowfall forecasts like this are incredibly difficult to forecast as the smallest shift in the trough position would lead to one town seeing a dusting and a different town 5 miles up the road receiving a half a foot of snow.

Tuesday Through Friday: The remaining part of this coming week looks quieter, however, it will remain cold on Tuesday and Wednesday before things warm up a little for late in the week. Tuesday is expected to feature a mixture of sunshine and clouds with maybe a brief snow flurry or two in the Worcester Hills and the Berkshires. High temperatures Tuesday will be between 35 and 40 Degrees. Wednesday is expected to be partly sunny with high temperatures between 40 and 45 Degrees. A frontal boundary is likely to head across the northeastern United States on Thursday. This means some scattered rain showers are expected on Thursday afternoon with high temperatures between 50 and 55 Degrees. Behind that front, skies on Friday look to be partly sunny with high temperatures near 45 Degrees.

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