Flood in Cowlitz County, Washington

Flood January 16, 2011 – January 17, 2011 · Cowlitz County, Washington

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

What the National Weather Service wrote

Heavy rain combined with snowmelt runoff to produce flooding on the Cowlitz River. The Cowlitz River near Kelso crested at 21.5 feet on January 16th at 20:50 PST.

The wider storm

A series of weather disturbances over the weekend brought sub-tropical moisture to the Pacific Northwest producing heavy rainfall over the region. The heavy rainfall combined with snowmelt runoff led to flooding on several rivers and streams in Southwest Washington as well as landslides and debris flows.

Began near Longview Jct (46.1261, -122.9096).

Source: NOAA Storm Events Database, event 278643. Narratives are written by the National Weather Service forecast office that issued the report.

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