Debris Flow in Ravalli County, Montana

Debris Flow August 1, 2025 · Ravalli County, Montana

$5K

Damage as recorded

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

What the National Weather Service wrote

Multiple debris flows blocked Skalkaho Highway (Highway 38) in three locations. Two slides occurred south of Skalkaho Falls, with an additional flow reported west of the winter gate.

The wider storm

Anomalously high precipitable water (200-210% of normal) along with a shortwave trough, resulted in high rainfall rates with convection. The Weather Prediction Center issued a slight risk for excessive rainfall rates.

Began near Hamilton Rvlli Co Ar (46.1711, -113.9142).

Source: NOAA Storm Events Database, event 1282038. Narratives are written by the National Weather Service forecast office that issued the report.

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