Noah Berger Photography

Embers fly above a firefighter as he works to control a backfire as the Delta Fire burns in the Shasta-Trinity National Forest, Calif., on Thursday, Sept. 6, 2018.

Embers fly above a firefighter as he works to control a backfire as the Delta Fire burns in the Shasta-Trinity National Forest, Calif., on Thursday, Sept. 6, 2018.

Embers fly above a firefighter as he works to control a backfire as the Delta Fire burns in the Shasta-Trinity National Forest, Calif., on Thursday, Sept. 6, 2018. (AP Photo/Noah Berger)