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Summary: Still don’t see much change in the forecast. Things are pretty much progressing as expected. The dry slot which has rotated into the center of the storm is now moving over Berkshire County (4:30 pm) and the last band of heavy snow is moving south to north through the county. Precipitation should pretty much shut down within the next hour. There will be intermittent spotty mixed precipitation, mostly sleet (ice pellets) through the evening hours. Between 10 pm and midnight the band of precipitation wrapping around the back of the low will begin to move into the county. Right now, this feature is represented by an area of heavy snow and rain over Virginia, Maryland and Delaware. It still looks like the heaviest of this precipitation should stay just to our west. Precipitation will become steady and increase in intensity between 10 pm and midnight. The precipitation should start as sleet and we may see 1/2″ to 1″ of ice pellets accumulate before the sleet changes to snow between midnight and 1 am. Snow will continue, varying in intensity, for the remainder of the night and begin to taper off around daybreak. Most likely additional snow accumulations for this period will be 3-6″. In contrast to today’s snow, the heaviest amounts overnight are most likely in the northwestern parts of the county. Light snow may persist for a good part of the morning as the wrap around moisture is lifted by the elevated terrain. In fact, intermittent snow showers and/or flurries may persist into the afternoon. An additional dusting to 1″ of snow may fall during the day. Most likely storm total snow accumulations will be 10-16″.

Believe it or not, we will only get a brief break from the snow. After this storm departs, another jet stream disturbance will quickly follow, rotating through the base of the same trough. As a result, a much weaker surface low pressure system will scoot off the coast to our south on Saturday. A period of light snow is likely from mid-morning to mid-afternoon. Likely accumulations will be 1-3″.

Thursday Night

Overcast and breezy. Intermittent and spotty light mixed precipitation, mostly sleet until sometime between 10 pm and midnight. Sleet will then become steady and increase in intensity before changing to snow by midnight to 1 am. Snow, varying in intensity, for the remainder of the night. Snow will begin to taper off by daybreak. Probability of precipitation near 100%. Likely sleet accumulation of 1/2″ to 1″. Likely additional snowfall 3-6″, with the greatest amounts in northern and western portions of the county.

Temperatures will remain steady for most of the night and then drop a few degrees late. Low temperatures generally in the low 20s, near 20 over the elevated terrain.

Northeasterly winds at 10-20 mph, with gusts 30-35 mph, shifting to northwesterly after midnight.

Friday

Mostly cloudy and windy with light snow likely continuing off and on through most of the morning, scattered snow showers or flurries possible into the afternoon. Partial clearing late. Probability of precipitation 60%. Additional snowfall a dusting to 1″. Most likely storm total snow accumulation 10-16″.

High temperatures in the mid to upper 20s in Pittsfield, Lee, Stockbridge, Adams, North Adams and Williamstown; upper 20s in Great Barrington and Sheffield and; low to mid 20s over the elevated terrain.

West-northwesterly winds at 15-25 mph with gusts up to 35-40 mph.

Friday Night

Partly cloudy with diminishing winds in the evening, becoming overcast after midnight.

Low temperatures in the mid teens, low teens over the elevated terrain.

Westerly winds at 5-10 mph during the evening, becoming calm after midnight.

Saturday

Overcast with light snow likely, developing early to mid morning and continuing through mid-afternoon. Probability of precipitation 70%. Likely snowfall accumulations 1-3″.

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

Light northeasterly winds in the morning, shifting to northwesterly at 5-10 mph in the afternoon.