Debris Flow in Whitman County, Washington

Debris Flow December 8, 2015 · Whitman County, Washington

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

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

The wider storm

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.

Began near Grinnell (46.9499, -117.0952).

Source: NOAA Storm Events Database, event 604285. Narratives are written by the National Weather Service forecast office that issued the report.

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