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EF1 tornado in Oakland County, Michigan

Tornado August 24, 2007 · Oakland County, Michigan

EF1
Rating
23.5 mi
Whole path
440 yd
Path width
1
Injury
$24.0M
Damage as recorded

NOAA records this tornado county by county. Its path ran through Livingston County → Genesee County → Oakland County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 440 yards (0.25 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

This is the same tornado that began in Livingston County's Cohoctah Township and eventually tore a path through the City of Fenton in southwestern Genesee County. The tornado exited Genesee County and moved into Oakland County via Grange Hall Road at 1700EST. Of the 30 homes/buildings damaged in Oakland County, two were destroyed. The most significant damage in Oakland County occurred on Holly's north-side along the Grange Hall Road corridor and was rated as EF1 with wind speeds estimated at approximately 100 MPH. The average path width in Oakland County was 150 yards. The tornado ended in Oakland County approximately 3 miles northeast of Holly at 1707EST.

The wider storm

Four tornadoes moved through portions of Southeast Michigan on August 24th, leading to an estimated $25M in total damages. One long-track tornado cut a path of EF0 to EF2 damage across Livingston, Geneseee, and Oakland Counties. Fenton was the hardest hit area, prompting the Governor of Michigan to declare a state of emergency there. Tornadoes also touched down in eastern Shiawassee County (rated as EF0), northwestern Washtenaw County (rated as EF0), and southwestern Lapeer County (rated as EF1). Thousands of trees were lost to the tornadoes. Although hundreds of homes and buildings were damaged, many destroyed, remarkably only one person was injured (minor cuts from flying glass) and there were no direct fatalities. One man died (indirect) of a heart attack during the cleanup process in Fenton.

In addition to the tornadoes, there were widespread reports of severe thunderstorm wind gusts producing downed trees, limbs, and power lines. The hardest hit areas with respect to severe thunderstorm winds included areas around Flint, Lapeer, St. Clair, Chelsea, Monroe, and many locations in Livingston, Oakland, Macomb, Wayne and Lenawee Counties.

Began near Holly (42.8000, -83.6791).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 57990. Narratives are written by the National Weather Service forecast office that issued the report.

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