Heavy Rain in Washington County, Oregon

Heavy Rain October 31, 2015 · Washington 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

Heavy rain combined with clogged drains resulted in small stream and urban flooding. There were 16 instances where water or agricultural debris needed to be cleared from roadways. At least two residential basements were flooded in Beaverton. A large basement of an office building was flooded in Hillsboro.

The wider storm

A slow moving cold front associated with an atmospheric river of subtropical moisture produced heavy rain across Northwest Oregon that resulted in urban flooding for the Portland metro area. High rain rates and clogged drains (from shedding of tree leaves) contributed to the flooding.

Began near Beaverton (45.4851, -122.8127).

Source: NOAA Storm Events Database, event 601426. Narratives are written by the National Weather Service forecast office that issued the report.

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