SANTA MARIA — Rising temperatures on Wednesday posed new challenges for firefighters who have made incremental progress against a massive wildfire in central California that has injured four people as it has become the biggest blaze in the state so far this year.
More than 870 remote homes and other structures at the northern edge of Los Padres National Forest are threatened by the Gifford Fire, which grew only slightly overnight after burning out of control for days.
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The fire has scorched at least 131 square miles (339 square kilometers) of Santa Barbara and San Luis Obispo counties, with just 9% containment. It surpassed the 126-square mile (326-square-kilometer) Madre Fire, which erupted last month in southeastern San Luis Obispo County, as the state’s largest fire of 2025.
Crews working in steep, inaccessible terrain will be dealing with temperatures in the mid-90s (35 Celsius) on Wednesday and above 100 (38 Celsius) on Thursday, said Capt. Scott Safechuck with the Santa Barbara County Fire Department.
“We have hot weather, and we have low relative humidity,” Safechuck said Wednesday. “So we expect extreme fire behavior.” Luckily, winds are expected to remain relatively calm, he said.
Wildfire risk will be elevated through the weekend across much of inland California as the heat wave intensifies. The southern part of the state has seen very little rain, drying out vegetation and making it “ripe to burn,” the National Weather Service for Los Angeles warned in a statement. Triple-digit temperatures (around 38 Celsius) are forecast for the Sacramento Valley.
More than 2,200 personnel are battling the Gifford Fire, which grew out of at least four smaller fires that erupted Friday along State Route 166, forcing closures in both directions east of Santa Maria, a city of about 110,000 people. The causes of the fires are under investigation.
Flames are racing through a vast, mostly unpopulated region that includes forestland, ranches, large canyon properties and agricultural parcels growing wine grapes and strawberries.
The weather service warned of health risks from spreading smoke that could affect much of southwest California.
Officials reported four injuries, including a firefighter who was treated for dehydration. Over the weekend, a motorist was hospitalized with burn injuries after getting out of his vehicle and being overrun by flames. And two contract employees assisting firefighters were also hurt when their all-terrain vehicle overturned.
