Thunderstorm Wind in Walworth County, South Dakota

Thunderstorm Wind July 21, 2025 · Walworth County, South Dakota

63 mph

Measured gust (55 kt)

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

What the National Weather Service wrote

A peak wind gust of 63 mph was observed by a South Dakota State University mesonet station in the town of Glenham.

A line of storms developed and moved east across the northern tier of South Dakota, producing intermittently strong winds and some large hail.

Began near Sitka (45.4900, -100.2200).

Source: NOAA Storm Events Database, event 1281091. Narratives are written by the National Weather Service forecast office that issued the report.

See every tornado that passed near a place you know, measured to its path.