Debris Flow — Sierra, California

2017-08-18 · near Peavine, Sierra, California

Event narrative

A training thunderstorm caused flash flooding and a debris flow on the westbound side of Interstate-80 near Farad, CA, which closed the interstate from approximately 1745'1920PST. This area was associated with steep terrain and the burn scar from the Farad Fire. No damage estimates were available.

Wider weather episode

A weak upper low set up near southern California and slowly meandered northeast generating thunderstorms along the eastern Sierra. One thunderstorm produced large hail and another produced a very localized flash flood which lead to a debris flow.

View location on OpenStreetMap → (39.4470, -120.0098)

Source: NOAA Storm Events Database, event_id 720636. Narrative written by the NWS forecast office that issued the report.