Washington-Idaho Haboob Blankets Spokane in Dust, Contributes to Multi-Vehicle Accident On Interstate 90

A haboob raced through eastern Washington and northern Idaho Tuesday, turning the skies brown with lofted dust, downing trees and power lines, and contributing to a multi-vehicle accident.
The wall of dust was kicked up by an east-west line of thunderstorms moving north out of northeast Oregon just before 3 p.m. PDT Tuesday. Over a seven-hour period, this band of thunderstorms tracked about 180 miles through eastern Washington and northern Idaho.
Five people were injured in a six-vehicle accident on Interstate 90 west of Ritzville, Washington, after the haboob reduced visibility to near zero in parts of Adams and Whitman counties. Wind gusts estimated to 60 mph downed a large tree at a golf course in Ritzville.
Trees were downed, and at least 5,800 customers were without power in Moscow, Idaho, after the dusty blast came through.

http://www.weather.com/storms/severe/news/washington-haboob-dust-storm-spokane-20140813