Thunderstorm Wind in Osceola County, Iowa

Thunderstorm Wind June 11, 2025 · Osceola County, Iowa

75 mph

Estimated gust (65 kt)

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

What the National Weather Service wrote

Thunderstorm wind gusts removed the roof from a small shed.

The wider storm

As a subtle mid-level impulse worked eastward across the region, a couple of multicell thunderstorm clusters developed during the early to mid afternoon across northwest Iowa near and to the north of the surface boundary. With mixed-layer instability of 1500-2000 J/kg and deep-layer shear of 35-40 knots, organized storms developed and utilized an inverted-V thermodynamic profile to accentuate a swath of damaging wind gusts near and just south of Iowa State Highway 9.

Began near Sibley (43.4000, -95.7500).

Source: NOAA Storm Events Database, event 1278308. Narratives are written by the National Weather Service forecast office that issued the report.

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