Wildfires in eastern Washington state forced the evacuation of 60,000 people in the Spokane area while destroying at least 600 homes, businesses and other structures, authorities said Sunday. Video from the Spokane area showed buildings on fire, black smoke billowing up near neighborhoods, and the smoking ruins of homes, with only chimneys still standing. The National Weather Service issued warnings about the air quality in eastern Washington, eastern Oregon, western and central Idaho and western Montana. There were three fires in the Spokane area: the Old Trails Fire, the Fairview Fire and the Meadowview Fire. Another fire in eastern Oregon, about 70 miles to the northwest in the Stinkingwater Mountains, has burned about 336 square miles.