Firefighters in Okanogan County appear to finally be gaining the upper hand on the Sinlahekin Fire, but only after it has enlarged to become Washington's biggest wildfire of the 2026 season. Although containment levels have significantly improved since late last week, officials say the fire remains active in several areas, particularly on its western edges, where new evacuations have been issued. Meanwhile, many evacuations near the blaze's northern and eastern flanks have been downgraded or lifted in recent days. Several local roads, trails, and recreational sites remain closed due to the fire, which is still producing smoke impacts in nearby communities. Crews will remain active this week making direct attacks on the flames and forging containment lines in some areas.