No injuries were reported and no structures had been lost in the fire, other than a dock and a campground picnic shelter, Mike Ferris, a U.S. Forest Service spokesman, said Friday.
Firefighters were being mobilized to protect the homes in the Fields Point community, about 40 kilometers (25 miles) northwest of Chelan. A campground on the lake also was shut down.
The lightning-sparked fire, which began Monday, burned only 145 acres (58 hectares) as of Thursday before raging across grassy hillsides, brush and trees. The blaze is part of a complex of four fires, including one that has burned 15,500 acres (6,200 hectares), fire officials said.
About 625 firefighters were battling the fires which already cost about $13 million.
Meanwhile, in Oregon, high winds fanned a wildfire burning near the Warm Springs Indian Reservation to 10,500 acres (4,200 hectares). The blaze was 35 percent contained, and no homes were threatened, officials said.
Also, in Nevada, a wildfire started by a truck crash in the Humboldt-Toiyabe National Forest, was 70 percent contained Friday.
The fire blackened 290 acres (116 hectares) on steep mountain slopes about 55 kilometers (35 miles) northwest of Las Vegas. Crews expected to complete fire lines around the blaze, reopen roads and let residents back in late Friday, said Jerry Rohnert, spokesman for a Boise, Idaho-based interagency wildfire management team.
No structures burned, but five firefighters suffered minor injuries and 15 homes were evacuated, along with a Girl Scout camp and a youth correctional facility. Many residents in the 350-home Kyle Canyon community left voluntarily.
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