With ferocious winds driving multiple wildfires through bone-dry vegetation and nearly 200,000 people ordered to leave their homes, California's governor declared a statewide emergency Sunday. Meanwhile, millions of residents remained without power after the state's largest utility cut electricity as a precaution to prevent more areas from igniting.
Gov. Gavin Newsom said in a statement that officials were deploying "every resource available" to respond to the wildfires, including a large blaze in Northern California's wine country powered by gusts that reached more than 102 mph (164 kph).
Fire conditions statewide made California "a tinderbox," said Jonathan Cox, a spokesman for the California Department of Forestry and Fire Protection. Of the state's 58 counties, 43 were under red flag warnings for high fire danger Sunday.
The Kincade Fire in Sonoma County, which started Wednesday, grew to 85 square miles (220 square kilometers), destroyed 94 buildings and was threatening 80,000 buildings, state fire authorities said Sunday night.
In the San Francisco Bay Area, two grass fires briefly halted traffic on an Interstate bridge. The flames came dangerously close to homes in Vallejo. Another grass fire closed a stretch of interstate that cut through the state capital as smoke obstructed drivers.
In the south, a wildfire in the Santa Clarita area near Los Angeles destroyed 18 structures. As of Sunday, the Tick Fire was 70 % contained.
The biggest evacuation was in Northern California's Sonoma County where 180,000 people were told to pack up and leave, many in the middle of the night.
To prevent its power lines from sparking in the high winds and setting off more blazes, Pacific Gas & Electric decided to shut off power to 2.7 million people this weekend. Electricity is expected to begin being restored by Monday, though the utility warned it might cut power again as soon as Tuesday because of another forecast of strong winds that are expected to last until Wednesday.
Concern that the winds could blow embers and spread fire across a major highway prompted authorities to expand evacuation orders that covered parts of Santa Rosa, a city of 175,000 that was devastated by a wildfire two years ago.
"This is the largest evacuation that any of us ... can remember," the Sonoma County Sheriff's Office tweeted Sunday. "Take care of each other."
Some evacuating early Sunday had done so two years ago, when devastating wildfires swept through Sonoma and Napa and neighboring counties, killing 44 people.
At an evacuation center at Napa Valley College, Francisco Alvarado, 15, said he, two younger brothers and his parents decided to vacate their Calistoga home in advance of evacuation orders. Two years ago, the family had to flee, but in the middle of the night.
"I'm pretty mad that we have to keep evacuating," he said. "I just want to be home. I'm trying to leave here tomorrow; I want to sleep in my bed."
He said he wasn't sure who, if anyone, to blame for the repeated fires, but said he didn't fault PG&E for turning off the electricity to try to prevent them.
Hundreds of people arrived at the Sonoma County Fairgrounds in Santa Rosa by Sunday. Some came from senior care facilities. More than 300 people slept inside an auditorium filled with cots and wheeled beds. Scores of others stayed in a separate building with their pets.
Among them was Maribel Cruz, 19, who packed up her dog, four cats and fish as soon as she was told to flee her trailer in the town of Windsor, about 60 miles (97 kilometers) north of San Francisco. She also grabbed a neighbor's cat. "I'm just nervous since I grew up in Windsor," she said. "I'm hoping the wind cooperates."
Sonoma County Sheriff Mark Essick urged residents in the evacuation zone that stretched from the wine country to Bodega Bay on the coast to get out immediately, citing the 24 lives lost when fire swept through the region in October 2017. "Although I've heard people express concerns that we are evacuating too many people, I think those concerns are not valid at this point," Essick said at a news conference Sunday, noting that the winds pushed fire toward the towns of Healdsburg and Windsor overnight.
The Healdsburg area lost one of its historic attractions to the flames Sunday when embers carried by the winds sparked a blaze that engulfed the Soda Rock Winery, whose buildings included a general store and post office founded in 1869. The winery was about 10 miles (16 kilometers) outside Healdsburg.
In the San Francisco Bay Area, winds toppled trees and knocked out power to areas where the utility had not shut off power. The gusts knocked over a 30-foot (9-meter) tree at a farmers' market in Martinez, injuring nine people, including a toddler. Six were taken to a hospital but the injuries were not life-threatening, police said.
During the 2017 fires, winds up to 90 mph (144 kph) lasted for about 12 hours. This time, the gusts were stronger and expected to last more than 36 hours, ending Monday night, said Matt Mehle, a meteorologist with the National Weather Service's Monterey office.
Winds could blow embers and spark fires up to a mile away. Fire officials said they feared that if the Kincade Fire crosses U.S. 101, it could ignite an area that hasn't burned in 80 years.
"The fuel in that area is extremely dense, they're extremely old and dry," said Steve Volmer, a fire behavior analyst with Cal Fire.
The parched vegetation from the unseasonably hot weather and low humidity was already igniting spots elsewhere, and firefighters scrambled to keep up.
Two grass fires shut down a 6-mile (10-kilometer) stretch of Interstate 80, including a bridge between the cities of Crockett and Vallejo, and forced the evacuation of 200 people from California State University Maritime Academy. An ember from one fire possibly sparked the other.
Smoke from another grass fire Sunday forced the closure of a stretch of Interstate 80 running through Sacramento's downtown.
Meanwhile, fire officials spotted downed power lines in the area of a small fire that destroyed a building at a tennis club and three other structures in Lafayette, a leafy suburb in the east San Francisco Bay Area.
The city of Vallejo said the power blackout shut off its pumping station needed to access its well water, prompting an emergency. The city barred residents from watering yards and asked people to limit bathing and flushing toilets, according to The Vallejo Reporter .
Many residents said they feel exasperated.
"It has brought a lot of anxiety," said Cody Rodriguez, 20, who lived for a week at a Santa Rosa shelter during the 2017 fires and checked into a Napa County shelter on Sunday. "I was like, 'I don't want to go through this again.'"
Associated Press writers Daisy Nguyen and Janie Har in San Francisco, Christopher Weber in Los Angeles and Julie Watson in San Diego contributed to this report.