Debris Flow — Whitman, Washington

2015-12-08 · near Grinnell, Whitman, Washington

Event narrative

A member of the broadcast media reported a mudslide fully blocking highway 27 2 miles north of Palouse, WA.

Wider weather episode

An intense surface low pressure system moved from west to east along the Southern British Columbia border and dragged a cold front through as well. The resulting high winds brought about substantial damage across Eastern Washington. In addition heavy rain over the two days preceding and occurring with the windstorm brought about river rises, mudslides, and debris flows.

View location on OpenStreetMap → (46.9499, -117.0952)

Source: NOAA Storm Events Database, event_id 604285. Narrative written by the NWS forecast office that issued the report.