Thunderstorm Wind — Douglas, South Dakota

2025-06-27 · near Corsica, Douglas, South Dakota

Event narrative

An extended period of severe wind gusts was measured by South Dakota RWIS site near Corsica, with the peak wind gust at 2044 CST.

Wider weather episode

Thunderstorms developed along a nearly stationary pre-frontal boundary during the early evening across south central South Dakota. As cold pool development forced storms eastward off the initiating boundary into an environment with appreciable DCAPE and deep-layer shear of 40 to 50 knots, thunderstorms organized into a small bowing segment, which plowed east and southeast with up to nearly 90 mph winds. After several hours, storms moved into a less favorable environment with both lesser shear and instability toward the James River Valley and weakened.

View location on OpenStreetMap → (43.3800, -98.4100)

Source: NOAA Storm Events Database, event_id 1278599. Narrative written by the NWS forecast office that issued the report.