Caldor Fire: More than 34,000 people are under evacuation orders in California as state faces dangerous weather conditions for fire activity

A firefighter watches a tree as the French Fire burns in the Sequoia National Forest near Wofford Heights, California, on Wednesday, August 25.

A firefighter tries to extinguish flames at a burning house as the South Fire burns in Lytle Creek, California, on August 25.

From left, Astrid Covarrubias, Jose Lamas and Maria Covarrubias walk through smoke after visiting their burned-out home in Lytle Creek on August 25.

The French Fire continues to spread near Wofford Heights, California, on August 25.

Firefighters are seen behind the flames of a backfire they were setting to battle the French Fire near Wofford Heights on Tuesday, August 24.

Crews battle California’s Caldor Fire as it moves east toward Lake Tahoe on Monday, August 23.

This aerial photo, taken on August 19, shows burned homes at the Creekside Mobile Home Park a day after they were destroyed by the Cache Fire in Clearlake, California.

Firefighters dig a containment line on the Caldor Fire near Pollock Pines, California, on August 18.

Smoke and haze from wildfires obscure the Golden Gate Bridge and the San Francisco skyline on August 18.

In this long-exposure photo, embers light up hillsides as the Dixie Fire burns near Milford, California, on August 17.

Destiney Barnard holds Raymond William Goetchius while stranded at a gas station in Doyle, California, on August 17. Barnard’s car broke down as she was helping Raymond and his family flee the Dixie Fire.

Destroyed property is seen August 17 after the Caldor Fire passed through Grizzly Flats, California.

Firefighters spray water on trees being burned by the Dixie Fire near Janesville, California, on August 17.

A firefighting helicopter flies in front of the sun, which was shrouded in thick wildfire smoke near Lakeview, Oregon, on August 15.

Wind blows smoke away for a moment, revealing damage from the Parleys Canyon Fire in Utah on August 14.

Crews battle a fire in Newhall, California, on August 12.

A table and chairs sit in front of a destroyed home in Greenville, California, on August 12.

A firefighter battles the Dixie Fire near Taylorsville, California, on August 10.

Smoke plumes rise from the Kwis Fire near Eugene, Oregon, on August 10.

A firefighter works to extinguish a controlled burn, a preventative measure, to protect a home in Greenville, California, on August 9.

Firefighters battling the Dixie Fire clear a fallen tree from a roadway in Plumas County, California, on August 6.

Flames from the Dixie Fire consume a pickup truck on Highway 89, south of Greenville, California, on August 5.

Operations Chief Jay Walter passes the historic Sierra Lodge as the Dixie Fire burns through Greenville, California, on August 4. The fire leveled multiple historic buildings and dozens of homes in central Greenville.

Firefighters work at a Greenville home that was engulfed by the Dixie Fire on August 4.

The Dixie Fire burns near Taylorsville, California, on July 29.

California Gov. Gavin Newsom, left, and Nevada Gov. Steve Sisolak tour an area destroyed by the Tamarack Fire in Gardnerville, Nevada, on July 28.

Firefighter Brentt Call walks through a burned-over area of the Bootleg Fire near Klamath Falls, Oregon, on July 27.

Cal Fire Capts. Tristan Gale, left, and Derek Leong monitor a firing operation in California’s Lassen National Forest on July 26. Crews had set a ground fire to stop the Dixie Fire from spreading.

Firefighters try to reach a fire site in Quincy, California, on July 25.

Volunteers sort clothing at a donation shelter for those affected by the Bootleg Fire in Bly, Oregon.

Scott Griffin surveys his property, which was destroyed by the Bootleg Fire in Sycan Estates, Oregon.

Flames consume a home as the Dixie Fire tears through the Indian Falls community of Plumas County, California, on July 24.

People stand behind the fire line as flames from the Steptoe Canyon Fire spread through dry grass in Colton, Washington, on July 22.

Plumes of smoke from the Dixie Fire rise above California’s Plumas National Forest, near the Pacific Gas and Electric Rock Creek Power House, on July 21.

Firefighters walk near a wildfire in Topanga, California, on July 19.

A firefighter does mop-up work in the Fremont-Winema National Forest, which has been struggling with the Bootleg Fire in Oregon.

A car is charred by the Bootleg Fire along a mountain road near Bly, Oregon.

Nicolas Bey, 11, hugs his father, Sayyid, near a donated trailer they are using after their home was burned in the Bootleg Fire near Beatty, Oregon.

Firefighters extinguish hot spots in an area affected by the Bootleg Fire near Bly, Oregon.

A bear cub clings to a tree after being spotted by a safety officer at the Bootleg Fire in Oregon.

Firefighters work to protect Markleeville, California, from the Tamarack Fire on July 17. The Tamarack Fire was started by a lightning strike.

The Tamarack Fire burns in Markleeville, near the California-Nevada border, on July 17.

A member of the Northwest Incident Management Team 12 holds a map of the Chuweah Creek Fire as wildfires devastated Nespelem, Washington, on July 16.

A cloud from the Bootleg Fire drifts into the air near Bly, Oregon, on July 16.

Firefighters spray water from the Union Pacific Railroad’s fire train while battling the Dixie Fire in California’s Plumas National Forest on July 16.

Horses climb a hillside that was burned by the Chuweah Creek Fire in eastern Washington.

Fire from the Bootleg Fire illuminates smoke near Bly, Oregon, on the night of July 16.

A firefighter battles the Bootleg Fire in the Fremont-Winema National Forest, along the Oregon and California border, on July 15.

A firefighting aircraft drops flame retardant on the Bootleg Fire in Bly, Oregon, on July 15.

Firefighters dig away at hot spots underneath stumps and brush after flames from the Snake River Complex Fire swept through the area south of Lewiston, Idaho, on July 15.

Burned cars sit outside a home that was destroyed by the Chuweah Creek Fire in Nespelem, Washington.

Evacuee Dee McCarley hugs her cat Bunny at a Red Cross center in Klamath Falls, Oregon, on July 14.

An airplane drops fire retardant on the Chuweah Creek Fire in Washington on July 14.

Operations Section Chief Bert Thayer examines a map of the Bootleg Fire in Chiloquin, Oregon, on July 13.

Men hug a member of the Red Cross at a Bootleg Fire evacuation center in Klamath Falls, Oregon.

Embers blow across a field as the Sugar Fire burns in Doyle, California, on July 9.

Firefighters monitor the Sugar Fire in Doyle, California, on July 9.

In this long-exposure photograph, taken early on July 2, flames surround a drought-stricken Shasta Lake during the Salt Fire in Lakehead, California.