A Northern California blaze forced evacuation orders and warnings for nearly all of Sonoma County stretching to the coast, with forecasts of strong winds prompting officials to start cutting electricity for millions of people in an effort to prevent more fires.
Pacific Gas & Electric started shutting off power Saturday around 5 pm for an estimated 2.35 million people across 38 counties.
About 90,000 residents were ordered to evacuate towns near the 40-square-mile (104-square-kilometer) fire.
Saturday nights evacuation order encompassed a huge swath of wine country stretching from the inland community of Healdsburg west through the Russian River Valley and to Bodega Bay on the coast, Sonoma County Sheriff Mark Essick said.
An even broader area was put under a warning for residents to get ready to leave at a moment’s notice.
Some weekend gusts might reach 75 mph (120 kph) or higher in a “historic” wind event, the National Weather Service said. Winds could lead to “erratic fire behaviour” and send embers for miles, warned the California Department of Forestry and Fire Protection.
Concern that gusts could knock down power lines and spark devastating wildfires prompted two blackouts in recent weeks.
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PG&E said the new wave of blackouts was affecting about 940,000 homes and businesses in 36 counties for 48 hours or longer.
The city of San Francisco was not in line for a blackout amid shut-offs for most of the rest of the San Francisco Bay Area, the wine country to the north and the Sierra foothills.
The sheriff pleaded with residents in the evacuation zone to get out immediately, citing the 24 lives lost when a wildfire swept through the region two years ago.
“I’m seeing people reporting that they’re going to stay and fight this fire,” Essick said.
“You cannot fight this. Please evacuate.”
The wind event expected to peak early Sunday would likely be the strongest in several years, said PG&E meteorologist Scott Strenfel.
He said Saturday that falling trees and breaking branches were likely. Relative humidity will dip into single digits, he said.
Evacuations also hit inmates at the North County Detention Facility in Santa Rosa and about 100 Sutter Santa Rosa Regional Hospital patients.
PG&E ordered shut-offs as firefighters battled flames in Northern and Southern California.
A wildfire on Thursday destroyed 18 structures in the Santa Clarita area north of Los Angeles.
Nearly all the 50,000 residents ordered to evacuate were allowed back home after Santa Ana winds began to ease.
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Marcos Briano found destroyed homes on his street.
“I’m thankful that nothing happened to my house, but I feel bad for my neighbours,” Briano, 71, said Saturday.
Sheriff’s officials said human remains were found within the wide burn area, but it’s unclear if the death is connected to the blaze. The Tick fire was 55% contained.
To the north, firefighters raced to make progress against the blaze near Geyserville in Sonoma County before ferocious “diablo winds” returned.
The blaze, called the Kincade fire, had burned 77 buildings, including 31 homes, and swept through more than 40 square miles (104 square kilometers) of the wine-growing region by Saturday evening. It was roughly 10% contained.
A firefighter shielded two people from flames with his fire shelter and all three were hospitalised with non-life-threatening injuries, Cal Fire said.
Several thousand people in neighbouring Lake County were warned to be ready to evacuate if an order is given.
A 2015 wildfire in the area killed four people and burned nearly 2,000 buildings.
What sparked the current fires is unknown, but PG&E said a 230,000-volt transmission line near Geyserville malfunctioned minutes before that blaze erupted Wednesday night.
The utility acknowledged a tower malfunction prompted a strategy change for determining when to kill high-voltage transmission lines, Andrew Vesey, CEO of Pacific Gas & Electric Co., said on Friday.
Weekend forecasts detail what could be the strongest winds of the year coupled with bone-dry humidity.
Many facing power shut-offs were far from fires. PG&E cast blackouts as public safety efforts to prevent the kind of blazes that killed scores of people over the past couple of years, destroyed thousands of homes, and ran up tens of billions of dollars in claims that drove the company into bankruptcy.
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“Any spark, from any source, can lead to catastrophic results,” Vesey said. “We do not want to become one of those sources.”
The possible link between the wine country fire and a PG&E transmission line contained grim parallels to last year when most of the town of Paradise burned, killing 85 people in the deadliest US blaze in a century.
State officials concluded a PG&E transmission line sparked that fire.
Many residents facing blackouts had barely recovered from a previous shut-off.
Jon Robinson, 52, of Rough and Ready, said the earlier shut-off put him in the hospital for several days for the stomach flu.
He’d been tending to his sick grandson and got worn down between that and taking care of animals on his ranch.
Robinson was unsure if his family, who moved to California seven years ago, will remain in the state.
“Before this, we planned on staying,” he said. “But Ill tell you what, its just too nerve-racking.”