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EF1 tornado in Norman County, Minnesota

Tornado June 20, 2022 · Norman County, Minnesota

EF1
Rating
4.9 mi
Path length
150 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 150 yards (0.09 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

The tornado was likely wrapped in downburst winds and rain as it tracked for roughly 4 miles to the northeast and ended around 6.5 east of twin valley by 723 pm CDT. The tornado track was marked by patches of snapped poplar and ash trees. Peak winds were estimated to 90 mph, with a maximum width to 150 yards. Time estimated based on radar.

The wider storm

Severe thunderstorms formed during the afternoon, moving across the southern and central portions of the Red River Valley, then into west-central and northwest Minnesota. Wind gusts to 85 mph were reported, along with 2 tornadoes, and numerous other reports of hail and high wind damage.

Began near Fossum (47.2200, -96.2000).

Other tornadoes from the same storm system

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

EF1 Beltrami CountyEF0 Clay County

Source: NOAA Storm Events Database, event 1042520. Narratives are written by the National Weather Service forecast office that issued the report.

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