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Strong snow squalls Wednesday; milder weather follows Arctic cold

Dave Hayes maintains a daily blog on Facebook (facebook.com/WesternMassWeather), where he produces hyper-local reports, answers questions, and keeps more than 30,000 followers informed and educated about the weather.

Good day to you, my friends, and as always thanks very much for your readership! It’s a dynamic weather week ahead, as we’ll be experiencing a most changeable seven days to be sure.

Intense snow squalls with whiteout conditions, gusty winds, a quick inch of accumulation, and even thunder are possible for Wednesday. Arctic cold subsequently invades our region Wednesday night through Thursday night.

Then, after some seasonable cold into the weekend, we warm up into early next week when mixed rain and snow showers are expected. So strap in, and let’s ride the roller coaster of varying daily details together!

For Wednesday, a moderate, plowable snowfall will be wrapping up early in the morning. Mostly sunny skies are then expected to develop with highs in the mid to upper teens. However, a very strong Arctic cold front will be pressing east into southern Vermont.

Ahead of the front, temperatures will drop very quickly from the ground to a mile or two above our heads. These steep thermal lapse rates will help to develop scattered intense snow squalls that could cause serious travel disruptions where they materialize.

Very low visibility, strong gusty winds, heavy snow, and even thunder are possible during the mid to late afternoon.

As Arctic air seeps into the region behind this dynamic front, low temperatures will plummet into the high single digits below zero. With westerly wind gusts over 30 mph at times, wind chill readings will drop to 10 to 25 below zero across Windham County and Wind Chill Warnings and Advisories will likely be posted.

Thursday and Thursday night will be cold but fair, with mostly sunny skies and highs in the single digits during the day and either side of the 0 degree mark at night.

Friday through Sunday will see high pressure move into the region, and then offshore by the end of the weekend, with mostly sunny skies through the period.

Highs Friday will be in the teens with lows in the low single digits. Highs Saturday will be in the low 20s with lows near 10 degrees. Highs Sunday will be in the low to mid 30s with lows in the upper 20s as snow showers develop.

Early next week looks even milder as a storm passes to our northwest and milder Pacific air reaches our hills and dales with mixed rain and snow showers possible. Have a great week!

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Originally published in The Commons issue #495 (Wednesday, January 30, 2019). This story appeared on page C4.

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