Thunderstorm Wind — Lyman, South Dakota

2025-07-23 · near Lower Brule, Lyman, South Dakota

Event narrative

A peak wind gust of 80 mph was observed by the South Dakota State University mesonet station near Lower Brule. West Central Electric Cooperative reported multiple power outages due to broken poles and wires in and around Lower Brule.

Wider weather episode

Multiple clusters of storms moved across portions of central, north central and northeast South Dakota on the morning of July 23rd. Many of these storms produced strong winds and wind related damage. A peak wind gust of 80 mph was observed by the South Dakota State University mesonet station near Lower Brule, while a peak wind gust of 76 mph was measured by the South Dakota Department of Transportation weather station two miles south of Lowry. Thunderstorm winds were also responsible for damage grain bins and the Agtegra building near the town of Carpenter. Three boaters required rescue when their boat capsized on Dry Lake due to thunderstorm winds.

View location on OpenStreetMap → (44.0800, -99.6100)

Source: NOAA Storm Events Database, event_id 1266620. Narrative written by the NWS forecast office that issued the report.