Berkshire County Forecast – Thursday, April 26

The following forecast is provided by Jessica Grover and Kathryn Benner, in conjunction with the  instructor, as part of lab work for the Introduction to Meteorology course:

Summary: A weak storm and its associated cold front will move through tonight with a band of relatively light rain/showers. The precipitation should be over by 2 am or so and there will be some partial clearing by morning. As the storm moves away and intensifies off the coast a strong pressure gradient will develop between the low and strong Canadian high pressure to our northwest. The resulting strong northwesterly winds will usher in colder than normal temperatures from Friday through Sunday. It will be quite windy on Friday with wind gusts approaching 50 mph over the higher terrain. The cold air aloft and the high sun angle this time of year will combine to create significant environmental instability as well on Friday leading to numerous, predominantly snow, showers popping up over the afternoon. This will be similar to our weather on Tuesday and Wednesday. As high pressure builds in SLOWLY over the weekend it will become progressively more sunny with diminishing winds as the weekend progresses. However, it will remain quite breezy and unseasonably cool over the weekend. A widespread freeze is likely both Friday and Saturday nights. A weak storm will move by to our south on Saturday night. The associated precipitation should stay south of the region but there is the CHANCE that we could see a coating of snow on the ground when we wake up on Sunday.

Thursday Night

Cloudy with a period of rain or showers likely, ending by 2 am. Probability of precipitation (POP) will be greater the further north one goes in the county, with a POP of 80% in North County, 70% in central portions and 60% in South County. Likely rainfall totals from .05 to .25 inches with around .10 likely in most regions.

Low temperatures near 40.

It will be breezy with southerly winds shifting to the northwest as the cold front passes around midnight. Wind speeds 10-20 mph but increasing in velocity towards morning.

Friday

Partly sunny, windy and unseasonably cool. There is the chance of scattered showers of snow and rain in the afternoon. It should be cold enough for snow showers in the higher elevations with a mix of snow and rain in most areas.

High temperatures only in the mid 40s  in Pittsfield and North Adams, upper 40s in Great Barrington and Sheffield and low 40s in the hilltowns.

Northwest winds at 20-30 mph with gusts to 40 mph. Gusts could approach 50 mph in the higher elevations.

Friday Night

Clearing and cold, with widespread freezing temperatures.

Low temperatures in the mid 20s.

Northwest winds 10-20 mph.

Saturday

Mostly sunny, remaining breezy and unseasonably cool. There will be an increase in high clouds late in the afternoon.

High temperature near 50 in Pittsfield and North Adams, with low 50s in Great Barrington and Sheffield and upper 40s in the hilltowns.

Northwest winds at 10-20 mph diminishing toward evening.

Saturday Night

Increasing cloudiness and cold. There is a chance of a period of light snow. The probability of precipitation will be greatest in South County at 40% decreasing to 30% in central locations and 20% in North County. Any accumulations should be light, with generally a coating to as much as 1″ in South County.

Low temperatures near 30 in South County, upper 20s in central locations and mid 20s in North County.

Winds light and variable.

Sunday

Becoming mostly sunny after some early morning clouds, remaining unseasonably cool.

High temperature in the upper 40s in Pittsfield and North Adams, low 50s in Great Barrington and Sheffield and mid 40s in the hilltowns.

Northwest winds increasing to 10-20 mph in the afternoon.