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EF1 tornado in Genesee County, New York

Tornado July 25, 2009 · Genesee County, New York

EF1
Rating
4.1 mi
Path length
100 yd
Path width
$2.0M
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 crossed the town of Darien and village of Corfu in Genesee county. The initial touchdown occurred at 453 PM EDT on Reynolds Road in Darien. The tornado moved northeast across Routes 77 and 33 before lifting near Boyce Road at 505 PM EDT (a path length of about four miles). Widespread damage occurred to the small village. Over 30 homes were damaged and three buildings were demolished. Two greenhouses were also destroyed. Twenty power poles were snapped, countless trees were uprooted and a number of vehicles sustained damage. The tornado was rated an EF1 with wind speeds estimated close to 100 mph.

Began near Fargo (42.9361, -78.4224).

Source: NOAA Storm Events Database, event 191002. Narratives are written by the National Weather Service forecast office that issued the report.

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