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The Boston Globe

Metro

Twister began in Chelsea, then crossed Chelsea River into Revere

The tornado bearing gusts of winds that blew up to 120 miles per hour that lashed Revere today actually began in Chelsea, National Weather Service forecasters said, citing a report of a window blown out on Dudley Street.

The twister, moving northeast, then crossed the Chelsea River, moving directly across the Paul Cronin Memorial Skating Rink. Portions of the roof were blown northeastward across Route 16, forecasters said in their preliminary assessment of the tornado.

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The storm severely damaged numerous houses on Revere Beach Parkway, with one home’s roof completely blown off. Large oak trees were snapped midway up their trunks. Some trees and tree limbs were lifted onto the tops of houses immediately behind the parkway.

Forecasters, noting the positions of the blown-down trees, said they had found “a clear delineation of the track of the tornado.”

Once in Revere, the tornado traveled north “basically following Route 107/Broadway,” the report said.

The survey team found windows blown out and roof damage at the city hall. More than 100 homes had damage that ranged from siding torn off to parts of roofs blown off, the forecasters said. (The number was higher than the estimate of 64 or 67 offered by Revere’s mayor at a late afternoon news conference.)

Trees fell on several cars, with a few being crushed, the report said.

Revere police reported a car had been flipped over by the tornado to the west of Broadway at the intersection of Malden Street and Carlson Avenue. The damage path went north to just beyond the rotary at Route 60. A billboard lay on top of several cars near that roatry.

There was a “sharp cutoff” of damage just east of Route 60/American Legion Highway, the forecasters said.

The report said that most of the damage the weather service found rated only an EF-1, meaning winds were blowing only 86 to 110 miles per hour.

But EF-2 damage was observed near Revere Beach Parkway, the forecasters said, estimating that the maximum wind gusts at one point reached 120 miles per hour. (EF-2 gusts range from 111 miles per hour to 135 miles per hour.)

“Thankfully and miraculously there were no fatalities ... reported as a result of this tornado,” the forecasters said.

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