Debris Flow — Mono, California

2025-08-25 · near Walker, Mono, California

Event narrative

Local law enforcement reported a mudslide with a big-rig stuck on southbound Highway 395.

Wider weather episode

A high amount of atmospheric moisture in the region interacted with a short-wave trough, allowing for widespread heavy precipitation. This was day four of an extended push of monsoon moisture that produced heavy rain, localized flooding, strong outflow winds.

View location on OpenStreetMap → (38.4200, -119.4500)

Source: NOAA Storm Events Database, event_id 1280329. Narrative written by the NWS forecast office that issued the report.