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EF0 tornado in Allen County, Ohio

Tornado August 11, 2021 · Allen County, Ohio

EF0
Rating
4.7 mi
Whole path
50 yd
Path width

NOAA records this tornado county by county. Its path ran through Van Wert County → Allen 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

Drone and ground surveys confirmed a EF-U tornado tracked out of Van Wert county into Allen county just north of Fruend Road, crossing Southworth Road just north of Zion Church Road. The tornado then traveled through several fields for an additional 0.3 miles before lifting.

This tornado is classified as unknown as the tornado did not damage any structures or trees, but did damage croplands.

The wider storm

Convection initiated in Central Illinois and developed into a convective line as it approached Indiana. Thunderstorms developed in the warm sector ahead of the initial line and produced multiple outflow interactions. As the line moved into Ohio, embedded rear inflow jets within the line of storms resulted in several swaths of wind damage and isolated tornadoes.

Began near Landeck (40.7737, -84.3971).

Other tornadoes from the same storm system

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

EF1 Fulton CountyEFU Van Wert County

Source: NOAA Storm Events Database, event 982541. Narratives are written by the National Weather Service forecast office that issued the report.

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