Thunderstorm Wind in Butler County, Iowa

Thunderstorm Wind August 15, 2025 · Butler County, Iowa

58 mph

Estimated gust (50 kt)

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

What the National Weather Service wrote

Trees down. Time estimated by radar.

The wider storm

An embedded shortwave rounded the top of thermal ridging across Iowa. Storms across Nebraska and South Dakota earlier in the day moved into Iowa by afternoon, moving along the instability gradient across northern Iowa with over 4000 J/kg of MPCAPE to the south. An elevated mixed layer prevented more robust storm development initially, but eventually increasing cold pool strength pulled those stronger gusts to the surface and storms continued to push east. Severe gusts were common along the line of storms with several reports of tree and power line damage.

Began near Dumont (42.7500, -92.9700).

Source: NOAA Storm Events Database, event 1297850. Narratives are written by the National Weather Service forecast office that issued the report.

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