Strong Thunderstorms Move Through the Region

A frontal boundary draped along the MA, VT state line, will fluctuate north and south through Friday

Severe thunderstorms moved through multiple New England counties Wednesday.

Damage reports were received after trees and power lines fell in Grafton, Upton and Mendon, Massachusetts. Hail was also reported in Milford.

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The past couple of days we’ve been watching a stalled out front nearby – Wednesday, it is impacting our weather significantly.

Keep in mind that a front divides different types of air – in this case humid warmth south from drier air north – but also can result in changing wind direction over a short distance and it’s that second component that becomes important today.

Thunderstorms developing from midday onward will remain scattered, but also will be fueled by humidity and the changing wind direction will encourage some rotation inside stronger storms: this all adds up to the potential for localized damaging wind and perhaps even an isolated tornado, depending on just how strong the storms can grow.

As such, we encourage folks to have shelter nearby if outside this afternoon and keep an eye to the western sky. Localized flash flooding from torrential rain is also a possibility for a few communities hit by stronger storms.

The action wanes tonight with patchy fog, then a soupy start Thursday leads to some showers transitioning us to sharply cooler air by late day, sticking around for cool rain showers Friday.

Clouds will likely be stubborn on Saturday, but we start an improvement that continues through Sunday, with summer warmth and humidity returning Sunday through most of next week in the exclusive Early Warning Weather 10-day.

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