Berkshire County Forecast-Wednesday, Oct. 29

The following forecast is provided by Collin Campbell as part of lab work for the Introduction to Meteorology course (ATM-145) under my supervision. The forecast discussion is mine……

Today turned out to be quite a rainy day, as the cold front is moving so slowly that it is taking all day to move through. The showers should end this evening, around 7 pm or so. Skies will then clear overnight as a weak surface high pressure system begins to build in from the west. Thursday and into Friday will be relatively tranquil, with a mixture of sun and clouds and near seasonable temperatures.

Clouds will be on the increase on Friday as a vigorous mid/upper level disturbance (cold pool) dives into and deepens a trough in the jet stream wave pattern to our west. It now appears that the trough will become even more amplified than it looked on Monday. However, as a result, it will generate a surface low pressure system along the coast, even further south than anticipated, off the coast of North Carolina. The coastal low will deepen rapidly as it moves northeastward on Saturday through Sunday but looks to be too far offshore to bring us any significant precipitation. We will likely see nothing more than a few scattered mixed snow and/or rain showers during the day on Saturday. However, it will be unseasonably cool/cold both weekend days, particularly on Sunday when temperatures will hold in the 30s, despite clearing skies, and it becomes quite windy as the coastal low deepens rapidly and creates a strong pressure gradient over us between the low and high pressure building in from the west.

Wednesday Night

Showers ending early this evening, then clearing skies overnight.

Low temperatures in the upper 30s.

Light west-northwesterly winds.

Thursday

Partly cloudy early, clouds increasing later in the morning, mostly cloudy in the afternoon, some clearing late.

High temperatures near 50 in Pittsfield, Lee, Stockbridge, Adams, North Adams, and Williamstown; low 50s in Great Barrington and Sheffield and; mid to upper 40s over the elevated terrain.

West-northwesterly winds at 5-10 mph.

Thursday Night

Partly cloudy and seasonably cold.

Low temperatures near 30.

Light west-northwesterly winds in the evening, becoming calm after midnight.

Friday

Partly cloudy in the morning, becoming mostly cloudy in the afternoon.

High temperatures in the upper 40s in Pittsfield, Lee, Stockbridge, Adams, North Adams and Williamstown; near 50 in Great Barrington and Sheffield and; mid 40s over the elevated terrain.

Light southeasterly winds in the morning, shifting to northeasterly in the afternoon.