Debris Flow — Ferry, Washington

2016-10-16 · near Torboy, Ferry, Washington

Event narrative

A member of the public noted a small rock slide on SR 20 West bound at milepost 318 near Sherman Pass summit.

Wider weather episode

An intense low pressure system passed through Western Washington and up into Southern British Columbia. As it did so it swept a very intense occluded front over Eastern Washington. The strong wind associated with the passing front brought some trees down and caused some power outages in Eastern Washington in addition to heavy rainfall at times which caused debris flows in some of the mountain locations more prone to it.

View location on OpenStreetMap → (48.6073, -118.4797)

Source: NOAA Storm Events Database, event_id 656089. Narrative written by the NWS forecast office that issued the report.