Live updates: Air quality for most of SoCal impacted by smoke from 3 wildfires

The Mountain High and Big Bear Mountain resorts are both intact, thanks to the hard work of firefighters.

The Mountain High Resort is almost completely intact, thanks to the hard work of firefighters. Only a couple of infrastructures were briefly damaged.

Just days ago, a fire was burning close by, dangerously threatening the property.

The resort says it's expecting to open on time for the upcoming season.

Big Bear Mountain resort is also intact. But because of the Line Fire burning in the area, it's closed until further notice.

The Bridge Fire burning in the Angeles National Forest has now scorched 51,167 acres, according to Cal Fire. Fire crews hope that cooler temperatures will help their efforts.

Meanwhile, the Line Fire in San Bernardino County grew slightly overnight to 37,207 acres. That blaze is 18% contained.

Gov. Gavin Newsom declared a state of emergency Wednesday in four Southern California counties impacted by massive wildfires.

Newsom's proclamation applies to Los Angeles and San Bernardino counties, battling the Bridge Fire, and Orange and Riverside counties for the Airport Fire.

Over the weekend he proclaimed an emergency for the Line Fire in San Bernardino County.

The state has also already obtained federal assistance for the Line, Bridge and Airport fires.

"California is deploying every available resource to combat these devastating fires, and we'll continue to work in lockstep with federal and local partners in this herculean effort," Newsom said. "We are deeply grateful to all the heroic firefighters and first responders on the ground working 24/7 to keep Californians safe."

A declaration of emergency helps the state mobilize resources more quickly, waive certain regulations to obtain equipment and services, and helps expedite assistance to victims of the fires. It also allows the government to mobilize the National Guard to assist when necessary.

At least one home in Running Springs was destroyed by the Line Fire as it continued to grow, scorching more than 36,000 acres in San Bernardino County.

The family was able to evacuate in time.

A GoFundMe page has been started to help the family.

At least one home was destroyed in Running Springs by the Line Fire. The family was able to evacuate on time.

"Really sweet people," said neighbor Travis Debrule, who stayed behind when his own family evacuated. "They have little kids. It's really unfortunate."

The Line Fire is about 18% contained as of Wednesday evening.