Debris Flow — Napa, California

2017-01-03 · near Imola, Napa, California

Event narrative

Mud and rocks in roadway. State route 121 at wild horse.

Wider weather episode

The first in a series of three atmospheric river events between January 2 and January 10. Strong winds, flooding, and debris flows occurred throughout this event. Snow was also recorded at higher elevations.

View location on OpenStreetMap → (38.3542, -122.2046)

Source: NOAA Storm Events Database, event_id 671865. Narrative written by the NWS forecast office that issued the report.