Thunderstorm Wind in Powell County, Montana

Thunderstorm Wind September 14, 2025 · Powell County, Montana

59 mph

Measured gust (51 kt)

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

What the National Weather Service wrote

A line of thunderstorms marched northward across west-central Montana with gusty outflow winds. A gust of 59 mph occurred between Avon and Finn along Highway 141. Similar gusts occurred across the Windy Rock Fire southwest of Finn. No damage was noted.

The wider storm

Abnormally high moisture amounts and considerable instability, along with a weak disturbance, induced a couple of rounds of thunderstorms.

Began near Avon (46.6647, -112.6198).

Source: NOAA Storm Events Database, event 1287196. Narratives are written by the National Weather Service forecast office that issued the report.

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