For This Afternoon: Rain will move back into Western and Central Mass by early this afternoon. Rain will then continue throughout the rest of this afternoon.
Temperatures this afternoon will start out in the low to mid 50s, but will fall through the 40s later this afternoon once the cold front pushes through the region.
Tonight Through Wednesday: The weather forecast for tonight and Wednesday morning is a difficult one and it revolves around how much snow will accumulate and where exactly the cutoff line will be between snow and no snow.
A cold front will cross Western and Central Mass late this afternoon with temperatures falling through the 40s late this afternoon and into the 30s this evening.
It appears that an area of snow will overspread parts of Western and Central Mass between 10 pm and midnight tonight. The snow is then expected to continue into the early morning hours of Wednesday. From there, it appears that the snow will come to an end across Western Mass by 5 to 6 am Wednesday morning and then across Central Mass by about 7 am Wednesday morning.
One big question with the snow is how much drying will occur behind the front, which will cause a sharp cutoff between areas that are snowing and areas that are not snowing. In these types of setups (snow occurring on the backside of a cold front), there is often a narrow area of moderate to heavy snow and a sharp cutoff just to the north.
Based on all of the latest data available and using past similar situations, I think that snow amounts will range from a dusting to one inch along the I-91 corridor to as much as 1 to 3 inches of snow accumulation in the Hilltowns of Western Mass as well as across the Worcester Hills.
Once the snow ends early Wednesday morning, the rest of the day Wednesday will generally be cloudy, however, some peeks of sunshine is expected during the afternoon. High temperatures Wednesday will be near 35 Degrees.
Thursday: An area of high pressure will build into the area during Thursday. This means that skies on Thursday will be sunny to partly sunny and it will be cold with high temperatures near 30 Degrees.
Friday Through Saturday: Friday will start out sunny, but skies will quickly become cloudy during the afternoon as a low pressure system begins its trip up the East Coast of the United States. High temperatures Friday will be near 40 Degrees.
Rain will overspread Western and Central Mass during Friday evening with rain, heavy at times, expected from late Friday night through Saturday morning. Rainfall amounts of 1 to 2 inches are expected. This heavy rain, along with this current rainfall, may cause an increase in the river and stream flood threat. I will be monitoring the river levels closely and will keep you updated.
Temperatures on Saturday will be mild with highs between 45 and 50 Degrees.
Possible Snow Next Tuesday Into Next Wednesday: There are strong signals in the data that suggest a low pressure system will once again make its trek up the East Coast of the United States early next week. The “interesting” part is that ALL of the weather forecast guidance are forecasting the potential for enough snow to plow across all of Western and Central Mass beginning next Tuesday afternoon and lasting into next Wednesday.
Given the strong signals in the weather data, I do think that this is a potential storm to watch for sure. I will be monitoring this possible storm closely and I will keep you all updated.
Thank you for reading my latest forecast for Western and Central Mass.
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