A large plume of smoke from a wildfire rises above a hillside just north of Azusa, Calif., Monday, June 20, 2016. New wildfires erupted in Southern California as an intensifying heat wave stretching from the West Coast to New Mexico blistered the region with triple-digit temperatures. (Photo by Nick Ut/AP Photo)





The California state flag flies next to a home on Highway 94 south Potrero, Calif., on Monday, June 20, 2016, as huge flames roar behind it. An intensifying heat wave stretching from the West Coast to New Mexico threatened to make the fight against Southern California wildfires more difficult Monday. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Smoke from a wildfire rises from a hillside near power lines outside of Azusa, Calif., Monday, June 20, 2016. Two fires have erupted in the San Gabriel Mountains northeast of Los Angeles amid withering heat. The first fire reported Monday was near Morris Reservoir north of suburban Azusa. (Photo by Nick Ut/AP Photo)





Lakeside firefighters Joe Vasquez, left, and David Csik walk around a house as Lakeside Fire Capt. Jon Jordan watches large flames burn toward the home on Highway 94 south of Potrero Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Lakeside firefighter Joe Vasquez watches as large flames burn next to a home on Highway 94 south of Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Towering columns of smoke rise from two wildfires on the San Gabriel Mountains are viewed from Pasadena, Calif., Monday, June 20, 2016. The wildfires several miles apart devoured hundreds of acres of brush on steep slopes above foothill suburbs erupted in Southern California as an intensifying heat wave stretching from the West Coast to New Mexico blistered the region with triple-digit temperatures. (Photo by Beth Harris/AP Photo)





Upland firefighters, from left, Nima Homayounieh, Joseph Armendariz, and Capt. Joe Burna, watch as flames burn toward Highway 94 near Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





A firefighter pulls out a hose as a wildfire approaches Highway 94near Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Upland Fire Capt. Joe Burna watches as a tanker drops fire retardant to stop a wildfire from jumping over Highway 94 near Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





A helicopter drops water on a wildfire burning close to Highway 94 near Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Two fire captains with the Loma Linda Fire Department watch as a tanker flies in low to drop fire retardant on a wildfire burning close to Highway 94 near Potrero, Calif., on Monday, June 20, 2016. (Photo by Hayne Palmour IV/San Diego Union-Tribune via AP Photo)





Firefighters use a helicopter to douse a fire near California State Route 2 after a brush fire swept through threatening homes in Los Angeles on Sunday, June 19, 2016. Los Angeles firefighters say they have contained the fire in the densely populated neighborhood along a freeway. (Photo by Damian Dovarganes/AP Photo)





Los Angeles Fire Department trucks are deployed on a densely populated neighborhood after a brush fire swept through threatening homes in Los Angeles on Sunday, June 19, 2016. (Photo by Damian Dovarganes/AP Photo)





A Dodger Stadium employees walks through the parking lot as a large plume of smoke generated by two wildfires on the San Gabriel Mountains is visible in the distance Monday, June 20, 2016, in Los Angeles. (Photo by Jae C. Hong/AP Photo)





Firefighters battle a wildfire in temperatures well over 100F as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





A water bomber makes a drop as firefighters battle a wildfire in temperatures well over 100F as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





Smoke from wildfires burning in Angeles National Forest fills the sky behind the Los Angeles skyline on Monday, June 20, 2016. The wildfires several miles apart devoured hundreds of acres of brush on steep slopes above foothill suburbs erupted in Southern California as an intensifying heat wave stretching from the West Coast to New Mexico blistered the region with triple-digit temperatures. (Photo by Ringo H.W. Chiu/AP Photo)





Firefighters battle a wildfire in temperatures well over 100F as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





A San Diego Sheriff looks on as a water bomber makes a drop as firefighters battle a wildfire in temperatures well over 100F as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





An emu runs to escape an approaching wildfire as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





Firefighters move to try and head off a fast moving wildfire as it burns near Potero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





A home owner stands on the roof of her home as firefighters battle a wildfire as it burns near Potrero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





A firefighter rescues a dog for its owner as a fast approaching wildfire burns near Potrero, California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)





A fire fighting helicopter passes through smoke under the sun as it helps battle a wildfire near Potrero California, U.S. June 20, 2016. (Photo by Mike Blake/Reuters)