Berkshire County Forecast-Thursday, Jan. 16

Note: Clicking on underlined red text provides links to various weather maps.

SummaryNot much has changed since yesterday’s post. It still looks like another small shot of snow on Saturday as another weak surface low pressure system forming along the eastern edge of the jet stream trough moves quickly through and out to sea. We will likely get a similar amount of snow to what we received today although we may get a bit more, on the order of 1-2″.

On Sunday, a piece of the arctic air mass sitting over, of all places, the Arctic, will break off and begin its descent into the trough. The arctic front at the leading edge of this airmass will generate snow showers and snow squalls late on Sunday or Sunday night. Another 1″ or so is possible from this event as well. The front will temporarily stall over our region but then begin to slowly sink southward on Monday and Tuesday as the core of that piece of arctic air moves directly over our region. Temperatures will take a corresponding nosedive and we are likely to peak in the teens on Monday and Tuesday and struggle to get out of the single-digits on Wednesday and Thursday.

The long-range models suggest no significant let up from the cold as a reinforcing push of frigid, arctic air sinks into the “standing wave” trough for the following week. With the trough axis just to our west, any storms that form along its eastern margin should remain well out to sea. Therefore, at this time there is no evidence that we will receive any significant snow storms for the foreseeable future.

Thursday Night

Mostly cloudy with the chance of a snow flurry or two. Probability of precipitation 30%. No additional snow accumulation expected.

Low temperatures generally in the low to mid 20s.

Winds light and variable to calm.

Friday

Mostly cloudy in the morning. Becoming partly cloudy and not as cold in the afternoon.

High temperatures in the mid to upper 30s in Pittsfield; mid to upper 30s in Adams, NorthAdams, Williamstown, Lee and Stockbridge; near 40 in Great Barrington and Sheffield and; low to mid 30s over the elevated terrain.

South-southwesterly winds at 8-12 mph.

Friday Night

Partly cloudy.

Low temperatures generally in the low to mid 20s.

Light south-southwesterly winds in the evening, becoming calm overnight.

Saturday

Mostly cloudy with light snow likely. Probability of precipitation 70%. Likely accumulations a dusting to 2″. Becoming breezy in the afternoon.

High temperatures near 30 in Pittsfield; low 30s in Adams, NorthAdams, Williamstown, Lee, Stockbridge, Great Barrington and Sheffield and: upper 20s over the elevated terrain.

Easterly winds at 5-10 mph in the morning, shifting to northwesterly and increasing to 10-15 mph, with higher gusts in the afternoon.