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Tornado in Corson County, South Dakota

Tornado September 14, 2025 · Corson County, South Dakota

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Not rated

0.0 mi

Path length

1 yd

Path width

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 1 yards (0.00 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

Not rated. NOAA lists no rating for this tornado. Ratings come from surveying damage, and the National Weather Service now records “EFU” (unknown) when a tornado hit nothing a survey team could rate.

What the National Weather Service wrote

Storm chasers reported a brief tornado touchdown over open land, roughly 8 miles northeast of Wakpala, SD. No damage was reported.

The wider storm

Several strong storms spread between north central and northeast South Dakota producing high winds and tornadoes. A peak gust of 70 mph was measured at the Mobridge Regional Airport and a 68 mph gust was measured on a personal weather station 3 miles north-northwest of Lake Cochrane. Two tornadoes developed; one tracked approximately 4 miles causing damage to farmsteads and vehicles, while the second was a brief touchdown with no observed damage.

Began near Wakpala (45.7390, -100.4146).

Other tornadoes from the same storm system

1 more tornado the National Weather Service filed under this storm episode.

EF1 Walworth County

Source: NOAA Storm Events Database, event 1283642. Narratives are written by the National Weather Service forecast office that issued the report.

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