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.

Washington is facing a destructive fire season, with wildfires burning about 425,000 acres, according to officials.

The fires in and around Spokane, the state’s second-largest city, were among dozens of wildfires across the Western US that stretched the ability of federal, state and local…