The storms first popped up near Hopedale and Milford, and quickly moved into Medway and Millis. The storms produced torrential rain in both of those towns, in addition to pea sized hail. Some trees and branches also fell because of gusty winds.
From there the cells progressed into Needham, Dedham, and Walpole. More frequent lightning, torrential, rain, and pea sized hail occurred.
As the storms entered Brookline, winds gusted to 53 MPH and penny sized hail fell. Quarter sized hail fell in the Back Bay, with dime sized hail reported in Government Center. A large tree was also downed on Dartmouth Street.
The storm that hit Boston was clearly visible from HinghamWeather.com Headquarters (picture). Lightning and a large rain curtain could be seen swallowing up the city. Here in Hingham, a 26 MPH wind gust was reported in the storm’s outflow.
One of those lightning strikes hit a State Police vehicle at Logan Airport. The Trooper and K9 inside were not seriously injured.
The storms then rolled onto the North Shore, producing penny sized hail in Lynn, and heavy rain all the way up onto Cape Ann. Several trees were downed in Salem as well.
A separate cell soaked the Maynard and Carlisle area. That cell also produced penny sized hail in Chelmsford.