In this Tuesday, Aug. 29, 2017 photo, smoke rises from a wildfire behind the Fish Camp General Store near Yosemite National Park in Fish Camp, Calif. The wildfire is among a series of wildfires burning across the U.S. West. (Brian Wilkinson, Sierra Star via AP)

In this Tuesday, Aug. 29, 2017 photo, U.S. Forest Service hand crew out of Fresno, Calif., walks toward a small spot fire at the Yosemite Mountain Sugar Pine Railroad in Fish Camp, Calif. The wildfire is among a series of wildfires burning across the U.S. West. (Brian Wilkinson/Sierra Star via AP)

A school bus sign hangs upside down as an emergency crew working on a wildfire drives along Lumpkin Road near Oroville, Calif., Wednesday, Aug. 30, 2017. The wildfire is among a series of wildfires burning across the U.S. West. (Bill Husa/Chico Enterprise-Record via AP)

A fire truck working on a wildfire drives past downed power lines along Lumpkin Road near Oroville, Calif., Wednesday, Aug. 30, 2017. The wildfire is among a series of wildfires burning across the U.S. West. (Bill Husa/Chico Enterprise-Record via AP)

A tree continues to burn from a wildfire along Lumpkin Road near Oroville, Calif., Wednesday, Aug. 30, 2017. The wildfire is among a series of wildfires burning across the U.S. West. (Bill Husa/Chico Enterprise-Record via AP)