* WHAT. Visibility between one-quarter and one mile in blowing dust expected. West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE. Lower Columbia Basin of Oregon and Washington. * WHEN. From 11 AM to 11 PM PDT Wednesday. * IMPACTS. Hazardous driving conditions due to reduced visibility.

* WHAT. West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE. Foothills of the Blue Mountains of Oregon and Washington, Eastern Columbia River Gorge of Oregon and Washington, North Central Oregon, Kittitas Valley, Yakima Valley, and Simcoe Highlands. * WHEN. From 11 AM to 11 PM PDT Wednesday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. Visibility between one-quarter and one mile in blowing dust expected. Sustained winds of 20 to 30 MPH with gusts near 50 MPH expected. * WHERE. Odessa, Oakesdale, Fairfield, Spokane Valley, Coulee City, Ephrata, Airway Heights, Harrington, Mansfield, Rockford, Tekoa, Pullman, Uniontown, Cheney, Rosalia, Moses Lake, Grand Coulee, Waterville, Colfax, Badger Mountain Road, Quincy, Othello, Ritzville, Wilbur, La Crosse, Davenport, Creston, and Downtown Spokane. * WHEN. From 11 AM to 11 PM PDT Wednesday. * IMPACTS. Hazardous driving conditions due to reduced visibility. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.