California’s Oak Fire destroys at least 55 structures as it burns more than 17,000 acres near Yosemite National Park

Crews made progress in their effort to rein in the fire Monday, slowing the burn’s expansion after the blaze exploded over the weekend, though it is still just 16 percent contained, state fire management agency Cal Fire said. More than 2,400 structures are still threatened, according to the agency.

“It was a successful day for aircraft and firefighters, resulting in minimal growth on the fire,” Cal Fire said Monday evening, adding, “Crews continue to construct control lines and extinguish hot spots along existing lines.”

Nearly 3,000 fire personnel are tackling the blaze, deploying air and land efforts including two dozen helicopters, 302 fire engines and 82 bull dozers, according to Cal Fire’s Monday night update.

But challenging terrain and abundant dry vegetation fueling the fire has complicated efforts to tamp down its growth, Cal Fire spokesperson Captain Keith Wade told CNN Monday.

“The footprint out here, the acreage of available fuels to burn when the fire gets going, along with the available topography — the canyons, the drainages — the wind that flows through these areas, can make the fire behavior erratic and it can explode … the ferociousness of that fire at times can be intense,” Wade said.

So far this month, there have been 23 wildfires in California, according to Cal Fire, but only three have exceeded 500 acres. None have come close to the mass destruction of the Oak Fire, due in part to the exceedingly dry conditions in the area, Wade said.

Firefighters mop up hot spots while battling California's Oak Fire.

“I think the real difference that firefighters are experiencing on this one is how dry everything is, it’s definitely been (drier) as the years have been going on,” he said. “We’ve noticed that there seems to be less precipitation, less moisture and the available fuel load is definitely out there.”

The fire’s rapid growth has also made evacuation efforts more difficult, Cal Fire Battalion Chief Jon Heggie told CNN Monday, noting that officials and law enforcement are doing their best to notify residents when they need to leave.

“The reality is, it’s moving so quickly, it’s not giving people a lot of time and they are sometimes just going to have to evacuate with the shirts on their back,” Heggie said.

The incremental progress made by fire crews has allowed officials to reduce evacuation orders in some areas to fire advisements, Cal Fire said.

At least 3,000 people were forced to flee their homes over the weekend, per a Saturday news release from Gov. Gavin Newsom’s office. An evacuation shelter has been set up at Mariposa Elementary School for displaced residents.
Mariposa county has been under a state of emergency since Saturday, when Newsom announced the proclamation.
Southern California fire officials have been expecting this summer to bring an especially challenging fire season due to the increased frequency of wildfires and the dry, hot conditions in much of the state.
Firefighters work to contain hot spots from the Oak Fire, which began burning Friday.

Heggie attributed the Oak Fire’s “velocity and intensity” to the state’s prolonged drought and human-caused climate change.

“What I can tell you is this is a direct result of what is climate change,” he said. “You can’t have a 10-year drought in California and expect things to be the same. And we are now paying the price for that 10-year drought and that climate change.”

California is among the western states that have been suffering under a prolonged megadrought that has been heavily exacerbated by the climate crisis.

“That dead fuel that’s a result from that climate change and that drought is what’s driving these, what we are now calling, ‘mega fires,'” Heggie said.

It’s not just the Western US dealing with extreme fire conditions. Wildfires around the globe have intensified and become more commonplace, according to a report from the UN Environment Programme. The report’s analysis found that the number of extreme wildfire events will increase by 30% by 2050.

The report suggested it’s time we “learn to live with fire,” urging authorities and policymakers to cooperate with local communities to use Indigenous knowledge and invest in planning and prevention efforts.

CNN’s Poppy Harlow, Taylor Romine, Stella Chan, Sara Smart, Rachel Ramirez contributed to this report.

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