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EF0 tornado in Luce County, Michigan

Tornado May 23, 2011 · Luce County, Michigan

EF0
Rating
2.4 mi
Whole path
50 yd
Path width

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

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

Weak low pressure and cold air aloft helped spin up a weak tornado/waterspout in the Helmer Bay portion of Manistique Lake during the early evening of the 23rd. The tornado/waterspout was not associated with a thunderstorm. The tornado touched down 4.57 miles south southwest of McMillan Corner and moved southward crossing into the Mackinac County portion of Big Manistique Lake 5.88 miles south southwest of McMillan Corner. The tornado then continued southward an additional mile into Mackinac County.

The wider storm

Weak low pressure at the surface and aloft helped spin up a weak tornado in the Helmer Bay portion of Manistique Lake in southern Luce County on the evening of the 23rd. After formation the weak tornado then moved south toward Curtis in Mackinac County.

Began near Mc Millan Corner (46.2625, -85.7272).

Source: NOAA Storm Events Database, event 302323. Narratives are written by the National Weather Service forecast office that issued the report.

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