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EF1 tornado in Winona County, Minnesota

Tornado May 21, 2024 · Winona County, Minnesota

EF1
Rating
19.7 mi
Whole path
110 yd
Path width
$320K
Damage as recorded

NOAA records this tornado county by county. Its path ran through Winona County → Buffalo County, Wisconsin; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 110 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 fast moving and long track tornado began in St. Charles and produced EF-0 to EF-1 damage to farmsteads and trees in central Winona County. It then moved into Rollingstone, Minnesota were it damaged a few structures and caused widespread tree damage. The tornado continued northeast and crossed the Mississippi River into Buffalo County, Wisconsin where it dissipated.

The wider storm

On May 21st, a line of severe storms moved across southeast Minnesota during the late afternoon and evening hours. The storms produced widespread wind damage across the region and one EF-1 tornado in Winona County leading to structural and tree damage in the town of Rollingstone.

Began near Utica (43.9800, -92.0100).

Source: NOAA Storm Events Database, event 1182673. Narratives are written by the National Weather Service forecast office that issued the report.

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