Thunderstorm Wind in Yankton County, South Dakota

Thunderstorm Wind July 7, 2025 · Yankton County, South Dakota

61 mph

Measured gust (53 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A 61 mph wind gust was measured at the South Dakota Road Weather Information System site near Gayville.

The wider storm

Thunderstorms fired along a convergence zone pushing southeast across southeast South Dakota during the afternoon, with instability as high as 1500-2500 J/kg and modest effective shear of 25 to 35 knots. While storm shear and cold pool dynamics remained balanced, isolated large hail and damaging wind gusts gradually transitioned to the latter before weakening during the mid-evening hours.

Began near Gayville (42.8800, -97.2200).

Source: NOAA Storm Events Database, event 1282928. Narratives are written by the National Weather Service forecast office that issued the report.

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