Debris Flow in Clackamas County, Oregon

Debris Flow February 28, 2022 · Clackamas County, Oregon

$50K

Damage as recorded

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

What the National Weather Service wrote

Oregon 99E was closed due to a rock fall which damaged a large truck. Around 2 to 3 inches of rain fell.

The wider storm

An atmospheric river event, starting late Sunday February 27th and continuing through Monday February 28th, brought heavy rain and strong winds to northwest Oregon and southwest Washington. Rainfall amounts varied from around one inch in the Willamette Valley, to 5 to 10 inches in the Coast Range as well as the Washington and northern Oregon Cascades. Widespread urban and small stream flooding occurred in the Greater Portland-Metro area, and rivers flooded along the coast, in particular the Grays, Wilson and Nehalem rivers.

Began near Oregon City (45.3535, -122.6110).

Source: NOAA Storm Events Database, event 1009246. Narratives are written by the National Weather Service forecast office that issued the report.

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