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Sean Teng, right, holds open the front door as the Teng family dog Pup arrives home from wildfire evacuations, Friday, May 16, 2014, in Carlsbad, Calif. Behind, Snow, Teng sweeps while Annie and Logan Teng walk inside. Some evacuation orders were lifted early Friday in an area near the fiercest of several wildfires in San Diego County, as crews building containment lines around the blazes hoped cooler temperatures will help them make further progress. (AP Photo/Gregory Bull) ( California Wildfires )

Houses sit untouched above a canyon ravaged by wildfire Friday, May 16, 2014, in Carlsbad, Calif. Some evacuation orders were lifted early Friday in an area near the fiercest of several wildfires in San Diego County, as crews building containment lines around the blazes hoped cooler temperatures will help them make further progress. (AP Photo/Gregory Bull) ( California Wildfires )

Smoke rises from a canyon where a wild fire is burning Tuesday, May 13, 2014, in San Diego. Wildfires forced the evacuation of 20,000 people as a high-pressure system brought unseasonable heat and gusty winds to a parched state that should be in the middle of its rainy season. (AP Photo) ( California Heat Wave )

A lone tree stands in the path of approaching flames as wild fire burns through a canyon Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

Firefighters battle a wild fire in the Santa Luz area of San Diego Tuesday, May 13, 2014. Wildfires destroyed a home and forced the evacuation of several others Tuesday in California as a high-pressure system brought unseasonable heat and gusty winds to a parched state that should be in the middle of its rainy season. (AP Photo) ( California Heat Wave )

Firefighters battle a wild fire in the Santa Luz area of San Diego Tuesday, May 13, 2014. (AP Photo) ( California Heat Wave )

Billowing smoke rises from flames as firefighters begin the trek up the hills to battle a wild fire, Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

Firefighters face a huge smoke cloud as they plan their attack on a wild fire Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

California firefighters arrive to assist local fire personnel in a battle against a wild fire Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

Firefighters watch from a ridge as a helicopter drops retardant on a out-of- control wild fire Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

Billowing smoke rises from flames as firefighters begin the trek up the hills to battle a wild fire, Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

A helicopter attacks a wild fire burning Tuesday, May 13, 2014, in San Diego. Wildfires forced the evacuation of 20,000 people as a high-pressure system brought unseasonable heat and gusty winds to a parched state that should be in the middle of its rainy season. (AP Photo) ( California Heat Wave )

Flames grow as a wild fire burns out-of-control in the north county area of San Diego Tuesday, May 13, 2014, in San Diego. (AP Photo) ( California Heat Wave )

A helicopter drops water on a wildfire in the Rancho Santa Fe neighborhood Tuesday, May 13, 2014, in San Diego. Wildfires pushed by gusty winds chewed through canyons parched by California's drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( California Heat Wave )

A helicopter drops water on the grounds surrounding one of the luxury homes of the Fairbanks Ranch area where a wild fire threaten homes Tuesday, May 13, 2014, in San Diego. Wildfires pushed by gusty winds chewed through canyons parched by Californiaís drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( California Heat Wave )

A helicopter attacks a wildfire burning in the north county of San Diego Tuesday, May 13, 2014, in San Diego. Wildfires pushed by gusty winds chewed through canyons parched by California's drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( APTOPIX California Heat Wave )

Smoke rises as firefighters work in the brush as two fire fighting helicopters pass each other above one of the colossal homes of Fairbanks Ranch where a wild fire threatened homes Tuesday, May 13, 2014, in San Diego. (Wildfires pushed by gusty winds chewed through canyons parched by Californiaís drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( California Heat Wave )

Anthony Novom waters down smoldering vegetation surrounding his home in the Rancho Santa Fe neighborhood during a wildfire Tuesday, May 13, 2014, in San Diego. Wildfires pushed by gusty winds chewed through canyons parched by California's drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( APTOPIX California Heat Wave )

Firefighters look on as a helicopter drops water on a wildfire in the Rancho Santa Fe neighborhood Tuesday, May 13, 2014, in San Diego. Wildfires pushed by gusty winds chewed through canyons parched by California's drought, prompting evacuation orders for more than 20,000 homes on the outskirts of San Diego and another 1,200 homes and businesses in Santa Barbara County 250 miles to the north. (AP Photo) ( California Heat Wave )

Wildfire climbs a canyon toward homes Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

Firefighters knock out a flare up where a brush fire roared through a section of San Diego's north county, Wednesday, May 14, 2014, in San Diego. Weather conditions that at least temporarily calmed allowed firefighters to gain ground early Wednesday on a pair of wildfires that forced thousands of residents to leave their homes. (AP Photo) ( California Wildfires )

A Firefighter puts water on a house fence during a wildfire Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

Wildfire approaches buildings Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

Wildfire climbs a canyon toward homes Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County, threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton , as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

A woman is evacuated from her building during a wildfire Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Heat Wave )

A helicopter drops fire fighting material over a house as smoke envelopes the area Wednesday, May 14, 2014, in Carlsbad, Calif. Weather conditions that at least temporarily calmed allowed firefighters to gain ground early Wednesday on a pair of wildfires that forced thousands of residents to leave their homes. (AP Photo) ( California Wildfires )

A helicopter flies over burning vegetation as it nears homes Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

A Firefighter puts water on a house fence during a wildfire Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Wildfires )

A wildfire climbs a canyon toward homes Wednesday, May 14, 2014, in Carlsbad, Calif. More wildfires broke out Wednesday in San Diego County threatening homes in Carlsbad and forcing the evacuations of military housing and an elementary school at Camp Pendleton as Southern California is in the grip of a heat wave. (AP Photo) ( California Heat Wave )

A Carlsbad,Calif. police officer turns traffic away as flames leap behind him Wednesday, May 14, 2014, in Carlsbad, Calif. Weather conditions that at least temporarily calmed allowed firefighters to gain ground early Wednesday on a pair of wildfires that forced thousands of residents to leave their homes. (AP Photo) ( California Heat Wave )

In this view looking north from Encinitas, Calif, smoke rises from a wild fire Wednesday, May 14, 2014, in Carlsbad. (AP Photo) ( California Heat Wave )

A wildfire threatens homes in San Marcos, California, on May 15, 2014. Thousands of people fled raging wildfires in roasting southern California on Wednesday as flames destroyed homes and triggered evacuations at a nuclear power plant, a military base and an amusement park. The blazes, which also closed a major north-south highway, come amid record temperatures in the western US state, where the annual wildfire season typically starts much later in the year. AFP PHOTO/JORGE CRUZ/AFP/Getty Images ( 529781117 )

Firefighters spray water on a burning commercial structure at the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490741567 )

The moon rises behind a house that was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490740933 )

Firefighters spray water on a burning commercial structure at the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490741561 )

A firefighter hoses down the smoldering ruins of a house that was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490740717 )

A wildfire threatens homes in San Marcos, California, on May 15, 2014. Thousands of people fled raging wildfires in roasting southern California on Wednesday as flames destroyed homes and triggered evacuations at a nuclear power plant, a military base and an amusement park. The blazes, which also closed a major north-south highway, come amid record temperatures in the western US state, where the annual wildfire season typically starts much later in the year. AFP PHOTO/JORGE CRUZ/AFP/Getty Images ( 529781151 )

Residents looks at the burning remains of their home that was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490740655 )

Firefighters spray water on a burning commercial structure at the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490741565 )

The ruins of a home smolder in the night after it was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490740927 )

Residents looks at the burning remains of their home that was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California.(Photo by David McNew/Getty Images) ( 490726729 )

Firefighters spray water on a burning commercial structure at the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. (Photo by David McNew/Getty Images) ( 490741563 )

Residents photograph the burning ruins of their home that was destroyed in the Poinsettia fire, one of nine wildfires fueled by wind and record temperatures that erupted in San Diego County throughout the day, on May 14, 2014 in Carlsbad, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. The Poinsettia fire has destroyed at least eight homes and severely damaged eight condos and two businesses. (Photo by David McNew/Getty Images) ( 490726721 )

A firefighter pulls a hose into position to battle the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490958305 )

A house burns at the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490970229 )

A ranch is left a smoldering ruin by the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490968997 )

A firefighter hoses flames at the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490958297 )

Flames spread at the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490968999 )

Flames spread toward a house at the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490968995 )

Ranch equipment burns at the Cocos fire on May 15, 2014 in San Marcos, California. Fire agencies throughout the state are scrambling to prepare for what is expected to be a dangerous year of wildfires in this third year of extreme drought in California. (Photo by David McNew/Getty Images) ( 490958303 )

A plane drops fire retardant in the area of Harmony Grove in Escondido, Calif., Thursday, May 15, 2014. One of nine fires burning in San Diego County, California, suddenly roared Thursday afternoon, moving closer to homes. (AP Photo/U-T San Diego, Howard Lipin) ( California Wildfires )