Flood — Colusa, California

2025-10-13 · near Sites, Colusa, California

Event narrative

California Highway Patrol reported boulders in the roadway from heavy rain at Maxwell Sites Avenue and Sites Lodoga Road in Colusa County.

Wider weather episode

An early season storm system brought moderate to heavy snowfall to portions of the southern Cascades and Sierra Nevada mainly above 6500 feet. Storm total snow amounts of 6 to 21 inches were generally observed at and above 6500 feet. Widespread precipitation also brought localized roadway flooding to the lower elevations. The storm arrived on October 13th and lasted through the very early morning hours on October 15th.

View location on OpenStreetMap → (39.3091, -122.3381)

Source: NOAA Storm Events Database, event_id 1293366. Narrative written by the NWS forecast office that issued the report.