Californian authorities have issued new evacuation orders as wildfires that led to mass power cuts continue to sweep through the state.
The orders, covering large parts of Santa Rosa city, markedly increases the number of residents told to evacuate.
Some 90,000 people had already been ordered to leave towns in northern California.
“Anyone left in this mandatory evacuation areas need to leave now,” the sheriff’s office said in a warning.
The new evacuation order encompasses a huge area of Sonoma County, including Santa Rosa, where an estimated 175,000 people live.
Sonoma County has been ravaged by the Kincade Fire, which has already burned through 25,455 acres (10,300 hectares) of land.
Fears about the extent of the wildfires led Pacific Gas Electric (PGE) to initiate a precautionary blackout expected to be the largest in state history.
California Governor Gavin Newsom said the outages, lasting until Monday, were “unacceptable”.
A state of emergency has been declared in Los Angeles and Sonoma counties, and thousands of firefighters are battling the blazes.
Why is the power being switched off?
PGE said the power cuts would affect 940,000 households and businesses across 36 counties in northern California – hitting an estimated two million people. The outages are expected to last until Monday.
“We have begun implementing the public safety power shutoff”, a PGE official confirmed in a press conference on Saturday evening.
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In a statement the previous day, PGE warned customers that they could be affected by a mass blackout, citing forecasts of potential extreme weather.
The warning came as the company faced scrutiny over its possible role in the fires.
The Kincade Fire in northern California began seven minutes after a nearby power line was damaged, but PGE has not yet confirmed if the power glitch started the blaze.
The company is already seeking bankruptcy protection as it faces lawsuits over last year’s Camp Fire, which killed 85 people. The deadliest wildfire in the state’s history was sparked by ageing equipment owned by PGE. It spawned billions of dollars in liability claims against the company.
In a video posted to Twitter on Saturday, Governor Newsom said the power cuts were “infuriating everyone, and rightfully so”.
“We are going to do our best to get through these high wind events…and get these lights back on and do everything in our power to make sure PGE’s never in a position where they’re doing this to us again,” he said.
What’s the forecast?
The Kincade Fire was about 10% contained as of Saturday evening local time.
The fire was burning in remote, steep terrain, making access difficult, the state fire department said.
The National Weather Service said a powerful windstorm was expected to create “potentially historic fire weather conditions” in the region.
By Sunday morning, gusts reached 90mph (144km/h) in the hills north of Santa Rosa and up to 50mph across San Francisco’s East Bay, the forecaster said.
Forecasts predict the high winds will continue into Monday morning.
The National Weather Service issued a “red flag” warning for areas around the Kincade Fire.
In suburban Los Angeles, the Tick Fire had charred 4,615 acres and was 55% contained as of Sunday morning. All residents who were told to evacuate have returned home.
Firefighters have also been battling several other blazes in the state.
Mexico’s Baja California state is also tackling fires. Authorities on Friday said three people had died there and more than 150 homes had been destroyed.
‘Seconds to get out’
BBC correspondent Peter Bowes lives in the Santa Clarita area north of Los Angeles, where the Tick Fire has been raging.
“My partner was in the house and had just seconds to get out, to pick up the dog, throw the dog in the car – gently – just get out. It happened that quickly and all our neighbours did exactly the same thing,” he said on Friday.
He later tweeted photos of the devastation.