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EF1 tornado in Grant County, Minnesota

Tornado May 12, 2022 · Grant County, Minnesota

EF1
Rating
2.9 mi
Path length
50 yd
Path width
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 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 tornado began around 7:07 pm half a mile southeast of Charlesville, MN and moved north by northeast until it lifted at 7:10 pm, 13 miles west of Elbow Lake, near North Ottawa. Several large ash and cottonwood tree limbs were broken down in shelterbelts. At least 2 wooden power poles were cracked and 2 others were leaning as a result of this storm. Estimated peak winds were 100 mph, equating to an EF1 rating with a path length of 3 miles.

The wider storm

A strong cold front and upper low traversed the area during the afternoon and evening of May 12th. During the afternoon, a larger scale Derecho moved from northeastern Nebraska, through eastern South Dakota and into portions of far southeastern North Dakota and west-central Minnesota. Widespread strong to severe thunderstorms were observed, with large hail, tornadoes, and damaging wind gusts all being reported during this time.

Began near Charlesville (45.9500, -96.2600).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1032014. Narratives are written by the National Weather Service forecast office that issued the report.

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