: Cal Fire’s Keith Vitale sprays a hot spot along Lytle Creek Road. while fighting the Blue Cut Fire Wednesday, Aug. 17, 2016, near Keenbrook, Calif. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. The fire was 4 percent contained on Wednesday. (Kevin Sullivan/The Orange County Register via AP)

: Cal Fire Capt. Gretchen Gonzales keeps an eye on a wildfire along Lytle Creek Road Wednesday, Aug. 17, 2016, near Keenbrook, Calif. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. The fire was 4 percent contained on Wednesday. (Kevin Sullivan/The Orange County Register via AP)

: Flames from a wildfire rise above a Cal Fire vehicle in Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. The California Highway Patrol planned to reopen I-15 late Wednesday night, while the southbound side remained closed. (AP Photo/Noah Berger)

: Firefighters battle a wildfire on Cajon Boulevard in Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. (AP Photo/Noah Berger)

: A helicopter drops water on a wildfire as it burns through Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: Firefighters battle a wildfire on Cajon Boulevard in Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: Firefighters battle a wildfire as it crosses Cajon Boulevard in Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: Embers from a wildfire smolder along Lytle Creek Road near Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: Embers from a wildfire smolder along Lytle Creek Road near Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: A firefighter sprays water on a wildfire as it rages in Keenbrook, Calif., on Wednesday, Aug. 17, 2016. Firefighters had at least established a foothold of control of the blaze the day after it broke out for unknown reasons in the Cajon Pass near Interstate 15, the vital artery between Los Angeles and Las Vegas. Five years of drought have turned the state’s wildlands into a tinder box, with eight fires currently burning from Shasta County in the far north to Camp Pendleton just north of San Diego. (AP Photo/Noah Berger)

: TOPSHOT – A helicopter makes a water drop at the Blue Cut wildfire in Phelan,California on August 17, 2016. A fire raging east of Los Angeles spread rapidly Wednesday, posing a threat to more than 82,000 people and prompting the governor of California to declare a state of emergency. More than 1,300 firefighters were battling the giant blaze with more on the way, but as of early Wednesday they had been unable to contain the inferno. / AFP / JONATHAN ALCORN