Unseasonably cold weather continues tonight and Friday as the arctic air mass has a firm grip on the region. Another cold front will push through on Friday bringing another shot of colder air which will remain in place into the weekend. This is key since a storm is going to impact the Pioneer Valley over the upcoming weekend and with the cold air locked in we can expect snow from this system.
All that nice weather we had through the Autumn is nothing more than a faint memory now as we have quickly turned the corner the last couple of weeks and driven right into mid Winter temperatures. A bitter cold night lies ahead with temperatures dipping below 10 degrees in many locations.
Friday presents with a mix of clouds and sun. With the arrival of the next cold front we may get a passing flurry, otherwise the front passes with little notice except that it will make sure we stay in the freezer through Friday night and into the weekend.
A complex area of low pressure in the Midwest and South will redevelop along the North Carolina coast Saturday night and move northeastward. Meanwhile, strong high pressure to our north will keep the cold air locked in place and we have a classic set up for a snow event that will likely bring several inches of snow. The onset of snow should be around mid day or early in the afternoon and remain light through the afternoon hours. During Saturday night the snow is expected to become heavier after the evening hours and this will hamper travel through the overnight.
The storm is forecast to be centered just south of Nantucket Island early Sunday and then quickly move into the Maritimes by Monday. With the center of the storm staying offshore we are pretty much assured of an all snow event with the precipitation winding down Sunday morning and ending by afternoon. With temperatures remaining in the 20s the snow will be fluffy and easy to plow, shovel and snowblow around. There is just a slight chance of a bit of freezing rain mixing in before all winds down during Sunday. Early estimates are from 3 to 6 inches of snow but that can certainly change since we are still two days away from the event.
Once the storm moves away we are in for more cold and windy conditions with blowing snow likely Sunday night.
72 Hour Outlook:
Tonight: Some clouds around and frigid. Low temperatures in the single digits to low teens. Light winds.
Friday: Considerable sunshine early giving way to partly cloudy skies. Chance of a passing flurry. Becoming breezy and remaining quite cold. Highs only in the mid to upper 20s. West winds may gust to 25 mph at times.
Friday night: Partly cloudy skies become overcast overnight. Very cold once again with lows in the single digits to around 10 degrees. Gusty northwest winds to 25 mph early, diminishing overnight.
Saturday and Saturday night: Light snow overspreads the area during the afternoon. An inch or so is possible by evening. Snow becomes steadier with potential pockets of moderate to heavy snow at times. Several inches accumulation likely overnight. Temperatures remain in the 20s. Light northeast winds.
Sunday: Snow early, could mix with freezing rain for a time before ending in the afternoon. Highs in the upper 20s. Turning windy in the afternoon.