Debris Flow in Multnomah County, Oregon

Debris Flow December 20, 2020 · Multnomah County, Oregon

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

What the National Weather Service wrote

Oregon DOT estimated 70 cubic yards of material block the Historic Columbia River highway between Angels Rest and Multnomah Falls.

The wider storm

A series of strong Pacific fronts moved across the region bringing high winds to the coast with heavy rain across much of the area. The heavy rains resulted in flooding of some coastal rivers as well as small stream flooding and a debris flow.

Began near Oneonta (45.5762, -122.1242).

Source: NOAA Storm Events Database, event 933458. Narratives are written by the National Weather Service forecast office that issued the report.

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