Apocalyptic scenes in California as Line Fire and other wildfires rage - see the terrifying damage the infernos have caused so far

More than 100,000 people are under evacuation orders as several blazing wildfires continue to tear through parts of California. 

Apocalyptic scenes continue in San Bernardino County where the Line Fire has already caused 6,000 residents to flee.

Governor Gavin Newsom declared a state of emergency after several days of triple-digit temperatures stoked the wildfire that burned so violently it created its own thunderstorm-like weather systems.

Elsewhere a the Boyles Fire burned at least 30 homes and commercial buildings and destroyed up to 50 vehicles in Clearlake City, 110 miles north of San Francisco, officials said. 

And on Monday, firefighters used bulldozers, helicopters and airplanes to control the Trabuco Canyon fire, another rapidly spreading blaze that broke out near a remote-controlled airplane airport in Orange County, injuring at least three people.

As of Monday night, the Line Fire had charred more than 23,000 acres, with more than 36,000 structures under threat.

Terrifying images show the skies above San Bernardino County glowing an ominous red and choked with plumes of thick, black smoke. 

Firefighters have been working in steep terrain and challenging conditions in temperatures above 100 degrees, limiting their ability to control the blaze.

'We're dealing with triple-digit temperatures and hard-to-reach steep areas where there has not been fire in decades, or in recorded history, so all that vegetation has led to significant fuel loads,' Cal Fire spokesperson Rick Carhart said.

State fire managers said three firefighters have been injured since the blaze was reported Thursday.

On Monday, Newsom pledged additional resources including Blackhawk helicopters and more feet on the ground to help try and contain the flames.

'As the Line Fire continues to pose a threat to San Bernardino communities, we’re pouring resources into this incident aggressively by deploying more air and ground support through the California National Guard,' Newsom said. 

'This is on top of nearly 2,000 firefighters, nearly 200 engines, and air assets we already have tackling this fire. '

Stephen Richardson, whose 1930s wooden cabin in Mountain Home Village is in the path of the Line Fire, said he installed more fire-resistant siding to the structure and trimmed some branches away from his house.

'That´s about all I can do, aside from standing on the top of the roof with my garden hose, but that´s not in the plans,' said Richardson, a math and physics instructor.

'If we´re seeing flames and the air gets bad, we´re probably going to head down,' he said.

Running Springs resident Steven Michael King said he had planned to stay to fight the fire and help his neighbors until Sunday morning, when the fire escalated. 

He had prepped his house to prevent fire damage but decided to leave out of fear smoke could keep him from finding a way out later.

The affected area is near small mountain towns in the San Bernardino National Forest where Southern California residents ski in the winter and mountain bike in the summer. Running Springs is on the route to the popular ski resort town of Big Bear.

There were hopes cooler weather forecast from Tuesday onwards might help contain the blazes.

An excessive heat warning issued for the Los Angeles area will expire Tuesday night before giving way to cooler high temperatures. 

As of Monday afternoon the Boyles Fire had been 40 percent contained. 

The infernos are one of many wildfires burning across the West, including in Idaho, Oregon and Nevada, where about 20,000 people have had to flee a fire outside Reno.