Debris Flow — Ferry, Washington

2015-02-06 · near Republic, Ferry, Washington

Event narrative

Heavy rain produced a mudslide on SR-21 at milepost marker 158 which partially blocked the road. A tractor was able to clear the slide and reopen the lane by 8 AM. Rainfall amounts in the area ranged from .40 to .60 up to the time the slide occurred.

Wider weather episode

A four day interval in which a series of warm weather systems with very well maintained moisture feeds from the subtropics slowly moved through Northeast Washington. These systems brought considerable rainfall to the mountains and valleys and caused much of the mid-slope elevation snow to melt. The resulting runoff caused some streams and rivers to flood in addition to some debris flows, mudslides, and minor street flooding.

View location on OpenStreetMap → (48.6204, -118.7311)

Source: NOAA Storm Events Database, event_id 551809. Narrative written by the NWS forecast office that issued the report.