Oak Fire in California grows to 18K acres, the state's largest wildfire of 2022

Gov. Gavin Newsom declared a state of emergency for the Mariposa area because of the Oak Fire

Nearly 3,000 responders are attempting to contain the Oak Fire burning in Mariposa, California, near Yosemite National Park that torched dozens of houses Monday afternoon.

The blaze, which has covered more than 18,000 acres and is California’s largest wildfire of the year, is being fueled by "extreme drought" and a "high tree mortality [and a] bark beetle infestation" in the surrounding area, forcing thousands of residents to evacuate from their homes, Natasha Fouts, a spokesperson for the California Department of Forestry and Fire Protection (or Cal Fire) told Fox News Digital’s Jiovanni Lieggi.

On Monday, the fire destroyed 21 homes and 34 other buildings and is about 16% contained, the California Fire Department said. It continues to threaten over 2,400 homes in the nearby areas, Fouts added.

"This is the first fire we’ve had this season that is fast moving and destructive and we’re just getting started, so, I like to tell people to hope for the best but prepare for the worst," Fouts said.

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Smoke from the fire could be seen from the San Francisco Bay Area and Nevada.

"During this fire, they were reporting long-range spotting, almost up to 2 miles ahead of the fire. With everything being so dry, high temperatures and low humidity, when embers do land ahead of the fire, it’s creating spot fires because the fuels are so receptive," she added.

A helicopter drops water while battling the Oak Fire in Mariposa County, California, on July 24, 2022. (AP Photo/Noah Berger)

A firefighter stands atop a fire engine to battle the Oak Fire in Mariposa County, California, on July 24, 2022. (AP Photo/Noah Berger)

An air tanker flies past flames while battling the Oak Fire in Mariposa County, California, Sunday, July 24, 2022. (AP Photo/Noah Berger)

The California Fire PIO also said the fire has moved into a populated neighborhood and the mixture of homes and forest "present challenges for firefighters" looking to douse the flames. By Monday, the fire had consumed more than 27 square miles of forest.

"We’re putting in fire lines and we’re battling this fire from the air and the ground. You can’t just put out a fire with just air support, you have to have boots on the ground," Fouts said.

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"It was a successful day for aircraft and firefighters, resulting in minimal growth on the fire. Helicopters dropped 300,000 gallons of water on the fire. Crews continue to construct control lines and extinguish hot spots along existing lines," Cal Fire said in another statement Monday night.

The state is also enduring one of the worst droughts in decades, making dried vegetation further fuel for the raging flame.

Firefighters are combating a fire burning in California. (Fox News/Jiovanni Lieggi)

Nearly 3,000 workers are attempting to contain a wildfire in Mariposa, California. (Fox News/Jiovanni Lieggi)

A wildfire near Yosemite National Park in California has burned dozens of homes. (Fox News/Jiovanni Lieggi)

A wildfire in California has burned more than 17,000 acres. (Fox News/Jiovanni Lieggi)

She added: "The houses aren’t really close together, but you have what we call the wild urban interface where we have homes mixed in with forest so that presents challenges for firefighters as far as doing structure protection and makes evacuations difficult with narrow roads."

Gov. Gavin Newsom declared a state of emergency for Mariposa County on Saturday as thousands of more people remain in the fire's expected path.

Evacuations remain in place for over 6,000 people living in the fire zone. 

Another wildfire in California, the Anzar Fire, which is burning in San Benito County, is 90% contained. 

GOVERNOR DECLARES EMERGENCY OVER WILDFIRE NEAR YOSEMITE

Firefighters from multiple departments working in Balch Springs, Texas, July 25, 2022. (AP Photo/Tony Gutierrez)

Firefighters work on putting out hot spots in Balch Springs, Texas, July 25, 2022. (AP Photo/Tony Gutierrez)

The sun begins to set as a firefighter on the end of a ladder sprays water in Balch Springs, Texas, July 25, 2022. (AP Photo/Tony Gutierrez)

In Texas, a trio of fires has burned dozens of homes across the state.

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A blaze in Balch Springs burned up to 20 homes, while the Chalk Mountain Fire near Glen Rose destroyed 16 homes and the Possum Kingdom Lake fire destroyed five homes.

The Associated Press contributed to this report.

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