...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Airway Heights, Creston, Ritzville, Wilbur, Downtown Spokane, Fairfield, Grand Coulee, Cheney, Davenport, Coulee City, Rockford, Spokane Valley, Odessa, and Harrington. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Motorists should be prepared for limited visibility on Interstate 90 between Spokane and Ritzville. Portions of U.S. 2 between Airway Heights and Davenport will also be quite foggy. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&