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Dust Storm in Upper Columbia Basin, Washington
Dust Storm September 25, 2020 · Upper Columbia Basin, Washington
What the National Weather Service wrote
The Department of Highways reported State Highway 26 closed and multiple collisions due to blowing dust from strong winds.
The wider storm
The passage of a frontal boundary brought strong winds in the afternoon of September 25th. The winds surged across eastern Washington bringing gusts to 40 mph in some areas of the Columbia Basin, Palouse, Okanogan Valley, and Waterville Plateau. These winds produced several dust storms with near zero visibility. The strong winds created blowing dust leading to multiple car accidents and a closed state highway.
Source: NOAA Storm Events Database, event 920816. Narratives are written by the National Weather Service forecast office that issued the report.
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