A firefighter helps bring a blaze under control in Auburn, Wash., left, while a helicopter drops retardant on a wildfire threatening homes in Leavenworth, Wash., above. Many long, hot days of August and September could pass before ashes cool and smoke clears from wildfires raging on the eastern slopes of Washington's Cascade mountains. "We're gonna be here till the snow flies," said Stanley Kunzman, a veteran forester commanding the unified federal, state and local firefighting force in the area. "The big challenge lies ahead of us - all those hot, dry days of August and September," Kunzman said. "I have no doubt that somebody's going to have to baby-sit these fires that are burning right now for a long, long time." Civilian crews backed by Marines were battling the 104,000-acre Tyee Creek fire near Lake Chelan while other crews targeted two major fires near Leavenworth, as well as six other blazes around the state. The National Weather Service warned of more lightning strikes in the Cascades. Most of the current fires were started by lightning.