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EF0 tornado in Genesee County, Michigan

Tornado October 19, 2007 · Genesee County, Michigan

EF0
Rating
2.5 mi
Path length
50 yd
Path width
$100K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 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

This tornado developed at 0006EST in Thetford Township about 5 miles east of Clio. It started near Center and Vienna roads, tracked northeastward for 2.5 miles, and ended in Buell Lake Park. The tornado was rated as EF0 with winds estimated around 80 mph. Most of the damage was to large trees with many snapped or uprooted. One home had shingle damage and a barn had a portion of its metal roof peeled off. Damage to these two structures was estimated at $100K. The average path width was 50 yards.

The wider storm

A strong and potent storm in the Upper Great Lakes drove a cold front through Lower Michigan during the evening and overnight hours on October 18th and 19th. The atmosphere ahead of the cold front was very warm, moist, and unstable. These conditions combined with the strong storm to produce a late-season and late-night tornado outbreak. Five tornadoes were confirmed in Southeast Michigan in Shiawassee, Genesee, Tuscola, and Huron Counties. Only a couple of minor injuries were reported. Total property damages were estimated around $1.5M.

Began near Thetford Center (43.1800, -83.6200).

Other tornadoes from the same storm system

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

EF2 Ingham County 2 deadEF1 Tuscola CountyEF1 Tuscola CountyEF1 Huron County

Source: NOAA Storm Events Database, event 62077. Narratives are written by the National Weather Service forecast office that issued the report.

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