Thunderstorm Wind in Aurora County, South Dakota

Thunderstorm Wind June 27, 2025 · Aurora County, South Dakota

70 mph

Estimated gust (61 kt)

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

What the National Weather Service wrote

Several 4 inch diameter tree limbs were downed by thunderstorm winds.

The wider storm

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.

Began near Stickney (43.5900, -98.4400).

Source: NOAA Storm Events Database, event 1278601. Narratives are written by the National Weather Service forecast office that issued the report.

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