Debris Flow in Kittitas Valley, Washington

Debris Flow July 17, 2012 · Kittitas Valley, Washington

What the National Weather Service wrote

A mudslide about 100 feet long and 15 feet deep was reported on Highway 821, which is the Yakima River Canyon Highway between Ellensburg and Selah.

The wider storm

A nearly stationary upper level low pressure area parked near Brookings, Oregon brought abundant moisture across eastern Washington. This combined with daytime heating to produce a few severe thunderstorms and locally heavy rainfall. The heavy rainfall caused flash flooding and landslides in several areas. The upper level low moved north away from the area late on July 20.

Source: NOAA Storm Events Database, event 385316. Narratives are written by the National Weather Service forecast office that issued the report.

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