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EF1 tornado in Washington County, Maine

Tornado August 12, 2019 · Washington County, Maine

EF1
Rating
0.2 mi
Path length
200 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 200 yards (0.11 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 mini-supercell thunderstorm produced a brief tornado in a wooded area of Kossuth Township between Baskahegan Stream and Route 6. The tornado briefly touched down twice along the short path along Iron Bridge Road. Wind speeds with the EF-1 tornado were estimated at up to 90 mph. Approximately 120 trees were uprooted or snapped along the path (DI 28, DOD4). The average path width was around 150 yards.

The wider storm

A pre-frontal trof crossed the region during the afternoon of the 12th within a high shear environment. Showers and thunderstorms developed during the afternoon with the trof. One of the thunderstorms produced a brief tornado touchdown in northern Washington county. The touchdown occurred in a wooded area near Route 6. The EF-1 tornado intermittently touched down along a quarter mile path with winds estimated at up to 90 mph. An estimated 120 trees were snapped or toppled along the path.

Began near Topsfield (45.4170, -67.9550).

Source: NOAA Storm Events Database, event 843733. Narratives are written by the National Weather Service forecast office that issued the report.

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