Flood in Beaverhead County, Montana

Flood April 10, 2023 – April 13, 2023 · Beaverhead County, Montana

$100K

Damage as recorded

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

What the National Weather Service wrote

Meagher County Sheriff's office stated rockslides were occurring in the Deep Creek Canyon area, affecting Highway 12, due to snowmelt and flooding.

The wider storm

Unseasonably warm temperatures occurred in the first two weeks of April, with highs near 80 degrees occurring at times. These warm temps, along with occasional rain, resulted in melting of a deep snowpack on top of frozen ground which led to significant runoff into area waterways. Moderate to major flooding occurred along portions of the Milk River and its tributaries. Impactful snowmelt flooding also occurred across Southcentral Montana, in particular across the Gallatin Valley.

Began near Dewey (46.3556, -111.1514).

Source: NOAA Storm Events Database, event 1096959. Narratives are written by the National Weather Service forecast office that issued the report.

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