SPOKANE, Wash. — Firefighters have taken advantage of cooler weather to begin getting a handle on wildfires that have displaced tens of thousands of people around Washington state’s second-largest city, but hotter, drier and breezier days lie ahead. Officials reported Wednesday that firefighters had established containment lines around the perimeters of all three fires affecting Spokane and that they were focused on reinforcing those lines. Those fires, the Autumn Lane and Fairview fires, started independently of the arson-caused Old Trails Fire, they said. Among those under evacuation orders are patients and staff from the Mann-Grandstaff VA Medical Center in Spokane. Adam Wilson, a communications officer at the Washington State Auditor’s Office, fled Saturday with his wife and three children, ages 9, 14 and 16.