Firefighting aircraft make retardant drops during the Pilot Fire near Silverwood Lake in San Bernardino county near Hesperia, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





A firefighting helicopter makes a water drop near power lines during the Pilot Fire in San Bernardino county near the Deer Lodge Park area in Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





A smoke plume rises behind a rocky hillside covered with fire retardant as a firefighting helicopter flies during the Pilot Fire in San Bernardino county near the Deer Lodge Park area in Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





Smoke rises from trees during the Pilot Fire in San Bernardino county near the Deer Lodge Park area in Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





A firefighting helicopter makes a water drop near power lines during the Pilot Fire in San Bernardino county near the Deer Lodge Park area in Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





Firefighters with the Kings River Hotshots hike through trees covered in pink fire retardant after building a fire line to protect homes in the Deer Lodge Park area during the Pilot Fire in San Bernardino county near Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





A firefighting helicopter makes a water drop near power lines during the Pilot Fire in San Bernardino county near the Deer Lodge Park area in Lake Arrowhead, California, U.S. August 9, 2016. (Photo by Patrick T. Fallon/Reuters)





Men spray water on the roofs of houses to protect them from an approaching fire in Curral dos Romeiros, on the outskirts of Funchal, on the Madeira island, Portugal, Tuesday, August 9 2016. Flames from forest fires licked at homes around Funchal, casting a smoke plume over the downtown and forcing the evacuation of more than 400 people. (Photo by Helder Santos/AP Photo)





People take pictures of the smoke rising from a wildfire at Curral dos Romeiros, Funchal in Madeira island on August 9, 2016. Several houses were destroyed by multiple blazes in the region of Funchal and some 250 people were evacuated to spend the safe night in military installations, said the head of the Civil Protection government regional, Rubina Leal. (Photo by Joana Sousa/AFP Photo)





In this photo taken late Tuesday, August 9 2016, firefighters battle a fire that reached the old center of Funchal, the capital of Portugal's Madeira island. Forest fires in Madeira forced the evacuation of more than 1,000 residents and tourists. (Photo by Helder Santos/AP Photo)





View of a burning house at Caminho do Meio during the forest fires in Funchal, Madeira island, Portugal August 10, 2016. (Photo by Duarte Sa/Reuters)





Men take pictures of a burning house at Caminho do Meio during the forest fires in Funchal, Madeira island, Portugal August 10, 2016. (Photo by Duarte Sa/Reuters)





A firefighter prepares to takle a wildfire in Soutelo near Macinhata do Vouga, central Portugal, on August 9 2016. More than 3,000 people have been battling to contain roughly 100 fires across the country with 12 major blazes leading to the evacuation of local residents overnight. (Photo by Francisco Leong/AFP Photo)





A trunk burns on a hill side where a forest fire raged near Agueda, in the region of Aveiro, northern Portugal, Tuesday, August 9 2016. The National Civil Protection Service said some 2,900 firefighters were in action Tuesday fighting dozens of fires. The worst-hit areas were in northern Portugal, where temperatures have exceeded 30 degrees Celsius (86 Fahrenheit) since Saturday. (Photo by Sergio Azenha/AP Photo)





Firefighters tackle a forest fire in Regoufe, Arouca, Portugal, 09 August 2016. (Photo by Estela Silva/EPA)





Firefighting vehicles line the street in the historical center of Funchal in Madeira island on August 9, 2016. Three people were killed and 1,000 forced to flee their homes overnight as forest fires engulfed the Portuguese island of Madeira, authorities said, as flames menaced the capital Funchal. (Photo by Helder Santos/AFP Photo)





People watch a forest fire in Funchal, Madeira Island, Portugal, 09 August 2016. The fire has led to the evacuation of 400 people. Portugal remains on high alert as a wave of wildfires has swept the country with around 350 isolated fires affecting swathes of the countryside. (Photo by Gregório Cunha/EPA)





A woman looks over a balcony at burned houses in Campo da Barca, Funchal, Madeira island on August 10, 2016. Three people were killed and 1,000 forced to flee their homes overnight as forest fires engulfed the Portuguese island of Madeira, authorities said, as flames menaced the capital Funchal. (Photo by Joana Sousa/AFP Photo)





A firefighter stands as she tackles a wildfire in Torredeita near Viseu, central Portugal, on August 9 2016. Forest fires, raging since Friday in northern Portugal, had redoubled in vigor late yesterday, mobilizing more than 3,000 men fighting against 160 fires, eight classified as “important”. (Photo by Francisco Leong/AFP Photo)





A firefighter stands on a roof of a house and tries to extinguish a wildfire at Curral dos Romeiros, Funchal in Madeira island on August 9, 2016. Several houses were destroyed by multiple blazes in the region of Funchal and some 250 people were evacuated to spend the safe night in military installations, said the head of the Civil Protection government regional, Rubina Leal. (Photo by Joana Sousa/AFP Photo)





People are seen on the streets of Bom Sucesso, near to a fire during the wildfires at Funchal, Madeira island, Portugal, August 9, 2016. (Photo by Duarte Sa/Reuters)





A group of fire fighters hose down a blaze while fighting a forest fire in S. Joao do Monte, Viseu region, Portugal, early 09 August 2016. Numerous fire engine vehicles and hundreds of fire fighters are deployed to fight the widespread fires in the northern regions of Portugal, of which some had already declared a state of emergency. (Photo by Nuno Andre Ferreira/EPA)