The blazes are burning in California and the United States, but in a rare moment of calm, the National Weather Service in California announced the region’s first major fires were under control.
The fires were spotted by the National Hurricane Center in San Francisco, which issued a “severe” threat, the second-highest level in the National Capital Region.
The weather service said the fires were in the San Joaquin Valley, which includes parts of Los Angeles and San Diego.
In the San Francisco area, the fires are burning mostly in the mountains, but the fire activity is also in the coastal valleys, according to the National Interagency Fire Center.
A fire burning in the foothills of the Sierra Nevada mountains, which also include the Los Angeles Basin, was reported to the weather service.
The blazes started late Monday, but were spotted on Tuesday by the weather system, which reported that winds had increased and smoke was beginning to break up.
The National Weather Center says the fires have burned about 5,200 acres (2,800 hectares) of brush, grass and trees in the Sonoma, Napa and Santa Cruz counties.
The Santa Clara Valley Fire, which has burned about 1,400 acres (930 hectares), has been burning on the Sonopa Mountains and is expected to burn through the next few days.
The Sonoma Fire also has burned in the Sierra foothills and in the Mojave Desert.
The wildfires have destroyed at least 3,400 homes and damaged more than 600,000 homes.
The National Weather Services in San Jose says more than 3,000 structures have been destroyed, and some 2,000 people have been injured.
There are also some 3,700 homes and businesses damaged by the fires.
In California, the Santa Ana winds have been blowing the fires west and into the mountains.
The fire was reported at 11:20 p.m.
(3:20 a.m.) local time.