Heavy Rain — Ravalli, Montana

2025-07-30 · near Hamilton Rvlli Co Ar, Ravalli, Montana

Event narrative

Radar estimated 1.41 inches of rain had fallen over the western portion of the Daly burn scar, located west of Skalkaho Pass. A few days later, a rock slide was reported in the vicinity.

Wider weather episode

Slow-moving thunderstorms brought torrential rainfall and triggered subsequent debris flows across parts of southwest Montana. The event was exacerbated by a deep layer of atmospheric moisture, with precipitable water values measured at nearly one inch, leading to highly efficient and impactful rainfall.

View location on OpenStreetMap → (46.1765, -113.9173)

Source: NOAA Storm Events Database, event_id 1286094. Narrative written by the NWS forecast office that issued the report.