Fires rage in Northern California

Firefighters work along Highway 9 during the CZU Lightning Complex fire Sunday in Boulder Creek, Calif.  (Kent Nishimura/Los Angeles Times)

Firefighters protect a home in the Berryessa Estates neighborhood of unincorporated Napa County, Calif., as the LNU Lightning Complex fires burn on Friday. The blaze forced thousands to flee and destroyed hundreds of homes and other structures.  (Noah Berger / Associated Press)

Burned vehicles and rubble from homes are left after the CZU Lightning Complex Fire tore through Sunday in Boulder Creek, Calif.  (Marcio Jose Sanchez / Associated Press)

Firefighters respond to a structure fire along Riverdale Boulevard in Boulder Creek.  (Kent Nishimura/Los Angeles Times)

Firefighters watches as the fire line creeps up on Highway 9 during the CZU Lightning complex fire on Sunday.  (Kent Nishimura/Los Angeles Times)

A house is engulfed with flame during the CZU Lightning complex fire on Sunday.  (Kent Nishimura/Los Angeles Times)

Hand crews work on a hillside above the Boulder Creek Community Church as the fire line creeps up on Highway 9 during the CZU Lightning complex fire on Sunday.  (Kent Nishimura/Los Angeles Times)

The Big Basin Redwoods State Park Headquarters & Visitor Center which was built in 1936 was one of the structures lost to the blaze that tore through the state park.  (Kent Nishimura/Los Angeles Times)

Smoke hangs low in the air at Big Basin Redwoods State Park as some redwoods are still on fire on Saturday.  (Kent Nishimura/Los Angeles Times)

Firefighters respond to a structure fire along Riverdale Blvd. during the CZU Lightning complex fire on Sunday.  (Kent Nishimura/Los Angeles Times)

Smoke hangs low in the air along Highway 236 on Saturday, n Boulder Creek, CA.   (Kent Nishimura/Los Angeles Times)

Firefighters keeps watch as the fire line creeps up on Highway 9 during the CZU Lightning complex fire.  (Kent Nishimura/Los Angeles Times)

Firefighters respond to a structure fire along Riverdale Boulevard   (Kent Nishimura/Los Angeles Times)

Ben Lomond firefighters work on a blaze at The Sequoia Retreat Center during the CZU August Lightning Complex Fires on Friday.  (Kent Nishimura/Los Angeles Times)

A crew cuts down foliage and trees near some structures in preparation in Boulder Creek.  (Kent Nishimura/Los Angeles Times)

Charles Chavira, left, and Thomas Henney watch a plume of smoke spread over Healdsburg as the LNU Lightning Complex fire continues to burn.  (Noah Berger / Associated Press)

Scorched homes and vehicles fill Spanish Flat Mobile Villa struck by the LNU Lightning Complex fire in unincorporated Napa County.  (Noah Berger / Associated Press)

A plume of smoke billows over Healdsburg as the LNU Lightning Complex fire continues to burn.  (Noah Berger / Associated Press)

Firefighters from Eugene, Ore., walk beside an area burning along Pine Flat Road during the CZU August Lightning Complex fire in Felton.  (Kent Nishimura / Los Angeles Times)

The remains of a house burned by the CZU August Lightning Complex fire in Felton.  (Kent Nishimura / Los Angeles Times)

Flames from the the CZU August Lightning Complex fire approach a structure along Pine Flat Road in Felton.  (Kent Nishimura / Los Angeles Times)

Burned vehicles rest beneath a tree after the LNU Lightning Complex fire moved through Vacaville.  (Noah Berger / Associated Press)

Firefighters battle the Hennessey fire along Lyon Road in Vacaville.  (Kent Nishimura / Los Angeles Times)

A structure destroyed by the Hennessey fire along English Hills Road in Vacaville.  (Kent Nishimura / Los Angeles Times)

A firefighter walks through an area burned by the Hennessey fire along Solar Hills drive in Vacaville.  (Kent Nishimura / Los Angeles Times)

Firefighters battle the Hennessey fire along Lyon Road in Vacaville.  (Kent Nishimura / Los Angeles Times)

Flames from the LNU Lightning Complex fires consume a home in Napa County.  (Noah Berger / Associated Press)

The charred carcass of a cow rests beside a road in Vacaville.  (Noah Berger / Associated Press)

Flames from the LNU Lightning Complex fires jump Interstate 80 in Vacaville on Wednesday. The highway was closed in both directions shortly afterward.  (Noah Berger / Associated Press)

An air tanker drops retardant as the LNU Lightning Complex fire tears through the Spanish Flat community in unincorporated Napa County.  (Noah Berger / Associated Press)

Bill Nichols, 84, works to save his home as the LNU Lightning Complex fire tears through Vacaville.  (Noah Berger / Associated Press)

Seen in a long-exposure photograph, embers burn along a hillside as the LNU Lightning Complex fire tears through unincorporated Napa County.  (Noah Berger / Associated Press)

Matt Nichols sprays water while trying to save his home as the LNU Lightning Complex fire tears through Vacaville.  (Noah Berger / Associated Press)

Seen in a long-exposure photograph, embers burn along a hillside above Lake Berryessa as the LNU Lightning Complex fire tears through unincorporated Napa County.  (Noah Berger / Associated Press)

Horses stand in an enclosure as the LNU Lightning Complex fire tears through the Spanish Flat community in unincorporated Napa County.  (Noah Berger / Associated Press)

Flames consume a cabin at the Nichelini Family Winery in unincorporated Napa County as the Hennessey fire burns in Napa County.  (Noah Berger / Associated Press)

Mobile homes burn at Spanish Flat Mobile Villa as the LNU Lightning Complex fire tears through unincorporated Napa County.  (Noah Berger / Associated Press)

Members of the Grizzly Firefighters fight the Carmel fire near Carmel Valley.  (Nic Coury / Associated Press)

A plume rises over a vineyard in unincorporated Napa County as the Hennessey fire burns.  (Noah Berger / Associated Press)

A home in the Sky Ranch community burns in the Carmel fire near Carmel Valley.  (Nic Coury / Associated Press)

Firefighter Ian Johnson watches as an air tanker drops retardant to keep the River fire from reaching a home in Salinas.  (Noah Berger / Associated Press)