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Summary: Another disturbance, similar to today’s, will ripple along the zonally oriented jet stream and over Berkshire County tomorrow. However, an importance difference with today’s situation is that the lower levels of the atmosphere (the lowest 5000 feet or so) will be much milder tomorrow, hovering near the freezing mark. As a result, there will likely be mixed rain and snow across the county, with rain more likely in the lower elevations, particularly in South County with wet snow over the elevated terrain.

The precipitation should begin around noon and come down fairly hard for 2 or 3 hours. We should receive about 0.25″ of liquid equivalent. Any snow in the lower elevations should be limited to a slushy inch or so but the higher terrain could receive 1-3″ during a brief period of heavy snow between around noon and 3 pm. Towards evening any precipitation will turn to snow everywhere as we see some lingering light snow and snow showers well into the evening.

Travel should not be as treacherous as today in the valley locations as temperatures will be in the 30s in most locations so roads should be predominantly wet, even if it snows. However, during the period of heavy snow over the elevated terrain during early to mid afternoon, roads could become snow covered and slippery as snowfall rates may reach 1-2″/hour and temperatures will be hovering around the freezing mark.

Sunshine should make a return on Thursday and it will become much milder, reaching 40 in many locations as surface high pressure builds in briefly. A surface low pressure system will move through the western Great Lakes on Thursday night and Friday. It will push its warm front through here with some rain showers Thursday night. This will put us, briefly, in the warm sector of the cyclone on Friday. As a result, temperatures should rise into the 40s on Friday before the low’s trailing cold front moves through late in the day on Friday with another band of rain showers.

Tuesday Night

A few lingering snow flurries early this evening, then becoming partly to mostly cloudy for the remainder of the night.

Low temperatures in the mid teens.

Light west-northwesterly winds this evening, becoming light southerly after midnight.

Wednesday

Mostly cloudy and milder in the morning. A period of moderate to heavy mixed rain and wet snow is likely between about noon and 3 pm. Rain is more likely in the lower elevations, particularly in South County. Snow is more likely over the elevated terrain. Precipitaion should change to all snow late in the afternoon with intermittent light snow or snow showers continuing into the evening. Probability of precipitation 90%. Total liquid equivalent 0.25-0.30″. Any snowfall accumulations in the lower elevations should be limited to a slushy inch or less. The elevated terrain could receive 1-3″ of snow.

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

Southeasterly winds at 5-10 mph, shifting to westerly late.

Wednesday Night

A few lingering snow showers and flurries early, then becoming partly cloudy and breezy.

Low temperatures near 20.

West-northwest winds increasing to 1o-20 mph during the evening, diminishing toward morning.

Thursday

Mostly sunny in the morning, increasing clouds during the afternoon. Mild.

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

West-northwesterly winds at 5-10 mph in the morning, becoming light southerly during the afternoon.