Cold, Then Mild Followed By Cold Again This Week; Winter Storm Possible Saturday & Saturday Night

For The Rest Of Today: A large area of high pressure over Quebec province will produce east to northeast winds across Western and Central Mass throughout the rest of today. This east to northeast wind flow will continue to push low clouds westward through much of the area. In addition, some intermittent ocean-effect very light snow has pushed westward as far as I-495 as of mid-morning.

So, the rest of today will be cloudy across all of Western and Central Mass. In addition, some very light snow is possible from time to time across Central Mass, especially in the Worcester Hills. It is possible that a little bit of intermittent very light snow may make it as far as the Pioneer Valley of Western Mass this afternoon. High temperatures this afternoon will be between 35 and 40 Degrees.

Tonight: The overall wind flow tonight will switch into a westerly direction. This will cause any leftover intermittent light snow to end early this evening. Otherwise, tonight will be cloudy this evening with skies becoming partly cloudy after midnight tonight. Low temperatures tonight will be between 25 and 30 Degrees.

Tuesday: An area of high pressure will control our weather throughout much of Tuesday. This means that partly sunny skies are expected Tuesday morning into early Tuesday afternoon. By later Tuesday afternoon, clouds will be on the increase in response to a weak area of low pressure approaching from the southwest. High temperatures Tuesday will be between 40 and 45 Degrees.

Tuesday Night: That weak area of low pressure will cross New England during Tuesday night. Precipitation is expected to overspread Western and Central Mass around sunset Tuesday afternoon. There is expected to be a shallow layer of cold air near the surface across the region Tuesday evening. This means that we could see some light freezing rain and freezing drizzle across Western and Central Mass from sunset Tuesday through Tuesday evening.

The light freezing rain and freezing drizzle will come to an end around midnight Tuesday night with cloudy skies expected after midnight Tuesday night.

Low temperatures Tuesday night will be near 30 Degrees.

Wednesday: A mild day is expected on Wednesday under sunny to partly sunny skies & it is expected to be the nicest day of this week. High temperatures Wednesday will be between 45 and 50 Degrees.

Wednesday Night Through Thursday: A stronger low pressure system is forecast to move into northern New York State by Thursday morning before redeveloping off of the Maine coast during the day on Thursday.

I think that there is going to be enough mild air around for the precipitation on Wednesday night and Thursday morning to be all rain.

So, I expect periods of light rain to develop by midnight Wednesday night with periods of light rain continuing into Thursday morning. The light rain will end by midday Thursday.

More importantly on Thursday will be the strong gusty winds that are expected during Thursday afternoon. West to northwest winds of 20 to 30 mph with gusts to 40 to 50 mph are expected during Thursday afternoon.

Low temperatures Wednesday night will be between 35 and 40 Degrees. High temperatures Thursday will be between 40 and 45 Degrees.

Friday: A much colder air mass will move into Western and Central Mass on Friday. This means that temperatures on Friday will struggle to reach the upper 20s for high temperatures. In addition, strong and gusty northwest winds will produce wind chill temperatures of 5 to 15 Degrees throughout the day Friday. Even though Friday will be sunny, it will be quite cold.

Possible Winter Storm For Saturday & Saturday Night: An area of low pressure is forecast to rapidly strengthen near the south coast of New England Saturday afternoon into Saturday evening before moving into the Gulf of Maine later Saturday night into Sunday. This storm has the potential to bring moderate to possibly heavy amounts of snow to Western and Central Mass on Saturday and Saturday night.

As expected, the exact track of this low pressure system is uncertain & thus I’m not yet able to give you exact details of what to expect in terms of snow amounts & whether we will mix with or change to sleet, freezing rain or rain.

For instance, if we see a storm track right across southern New England, it would mean heavy snow to start with during the day Saturday that changes to sleet and freezing rain on Saturday night before ending Sunday morning.

On the other hand, should we see a track that takes this storm to the south of New England, it would mean mostly all snow with heavy snow amounts possible on Saturday and Saturday night.

One thing that is certain is that this storm system will have a tremendous amount of moisture and energy to work with & thus it is a storm that really needs to be watched closely. A couple of other things to keep in mind and to watch out for are whether there may be heavy thunderstorm activity over the southeastern United States which could rob some of the moisture from this storm leading to much less impact here in Western and Central Mass. The other thing to watch is for a layer of dry air to push in as the storm system moves by. This could also lead to less impact across some areas of Western and Central Mass.

Here Are My Thoughts: I do think that we could see snow, which could be moderate to heavy at times, starting late Saturday morning and continuing through Saturday afternoon. At this point, I do have suspicions that the track of the low pressure system may be close enough so that many areas of Western and Central Mass will change to sleet and freezing rain during Saturday night. The exception may be along and north of Route 2 where it may stay as all snow.

The storm comes to an end early Sunday morning with skies gradually becoming partly sunny during the day Sunday.

My first thoughts on possible snow amounts are for 3 to 6 inches of snow accumulation across much of Western and Central Mass on Saturday with some ice accumulations on top of the snow on Saturday night. The exception to this will be along and north of Route 2 and across the Berkshires where it stays as mostly all snow. Across these areas, 6 to 12 inches of snow accumulation are a possibility on Saturday and Saturday night.

Obviously, there is plenty of time to keep an eye on this storm for Saturday and Saturday night & I will keep you updated as needed.

Thank you for reading my latest forecast for Western and Central Mass.

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