EF1 tornado in Norfolk County, Massachusetts

Tornado August 18, 2023 · Norfolk County, Massachusetts

EF1

Rating

0.3 mi

Path length

100 yd

Path width

$10K

Damage as recorded

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

A tornado touched down in Weymouth near the intersection of

Pleasant and Torrey Streets. Numerous trees were uprooted and

snapped. A home at the intersection of Burton Terrace and Torrey

Street had about twenty singles torn from its roof. On Park

Avenue, a three-inch diameter branch from a treetrop was blown

about 120 yards and driven into the ground to a depth of 2 feet.

An eyewitness who received a Wireless Emergency Alert could see

swirling debris out a window as she took shelter in her cellar.

The tornado lifted near a water tower at the end of Lockewoods

Drive.

The wider storm

A high amplitude, negatively tilted trough moving across the Great Lakes and into New England along with cold and warm front provided strong forcing which resulted in flooding, wind damage, and 5 tornadoes. In the warm sector dewpoints surged into the mid 70s with PWATs near 2 inches which led to torrential downpours. Tornadoes occurred in Scotland, Ct, Scituate, RI, North Attleboro, MA, Stoughton, MA, and Weymouth, MA. The tornadoes ranged in intensity from EF-0 to EF-2.

Began near South Weymouth Nas (42.1775, -70.9511).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

EF1 Bristol County EF0 Norfolk County

Source: NOAA Storm Events Database, event 1120137. Narratives are written by the National Weather Service forecast office that issued the report.

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