A structure burns during a wildfire, May 15,, in Escondido, Calif. One of the nine fires burning in San Diego County suddenly flared Thursday afternoon and burned close to homes, trigging thousands of new evacuation orders.
A Long Beach fire fighter looks out over a burned-out canyon in San Marcos, Calif., May 15.
Greg Saska surveys the damage to his home after it was destroyed during the Poinsettia Fire in Carlsbad, Calif., May 15. Whipped by the wind, flames swept over the parched land close to homes and roads in nine fires across the county, with black smoke filling the sky as California entered the height of wildfire season in the midst of one of the state's worst droughts. No major injuries were reported.
Fire crews battle the Cocos Fire in San Marcos, Calif., May 15.
Jeff Brown waters the roof of his home as vegetation smolders during a wildfire, May 15, 2014, in Escondido, Calif.
The hills behind Cal State San Marcos burn as structures caught fire and others were threatened on May 14, 2014. Nine fires sent tens of thousand of residents fleeing their homes in Southern California as another day of sky-high temperatures and dry winds loomed, authorities said.
Firefighters spray water on a burning commercial structure at the Poinsettia fire in Carlsbad, Calif., on May 14. 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.
Residents watch a fast-moving wildfire approach in San Marcos, Calif., on May 14.
The ruins of a home smoulder in the night after it was destroyed in the Poinsettia fire in Carlsbad on May 14.
A fireman keeps an eye on a burning house on May 14 in San Marcos.
Flames crest a hill in San Marcos on May 14. Numerous fires have broken out in the region in the past days fueled by near-record temperatures, hot winds and a landscape left parched by severe drought.
Smoke from a nearby fire billows behind a home in San Marcos on May 14.
Firefighters set up a hose as the porch of a home burns in San Marcos on May 14.
After climbing a hillside to view the so-called Poinsettia Fire, residents are evacuated by police as yet another wildfire near San Diego moves up a hillside near San Marcos on May 14.
A plane drops fire retardant over a hot spot on May 14 in San Marcos.
A man talks on a phone as a wildfire approaches in Carlsbad on May 14.
Trees burn as the Bernardo fire moves through a canyon between the Rancho Santa Fe and Fairbanks neighborhoods north of San Diego on May 13.