An aerial photo of the devastation left behind from the North Bay wildfires north of San Francisco. California Highway Patrol | Golden Gate Division | Reuters

Fifteen wildfires ravaged thousands of acres in Northern California this week, killing at least 11 people and destroying over 1,500 commercial and residential buildings. The blaze started on Sun., Oct. 8, and quickly spread through wine country and residential areas. Schools and hospitals were evacuated, and flames threatened the wine operations in Sonoma and Napa counties. Officials say around 20,000 people had been evacuated from their homes as the fires spread across 73,000 acres, fanned by high temperatures and dry conditions. California Governor Jerry Brown declared a state of emergency in the affected counties.

Scorched earth and total destruction

Burned cars sit idle after an out of control wildfire moved through the area on October 9, 2017 in Glen Ellen, California. Justin Sullivan | Getty Images

Burned cars sit idle after an out of control wildfire moved through the area on in Glen Ellen, California.

Surveying the loss

Mark Williams, right, and friend Norina Wong, left, look over the destruction in their friends' neighborhood off Fountaingrove Parkway near the Hilltop in Santa Rosa on October 9, 2017 in Santa Rosa, California. Brian van der Brug | Los Angeles Times | Getty Images

Mark Williams, right, and friend Norina Wong, left, look over the destruction in their friends' neighborhood off Fountaingrove Parkway near the Hilltop in Santa Rosa.

Losing the battle

Firefighters douse flames as a home burns in the Napa wine region in California on October 9, 2017, as multiple wind-driven fires continue to whip through the region. Josh Edelson | AFP | Getty Images

Firefighters douse flames as a home burns in the Napa wine region in California as multiple wind-driven fires continue to whip through the region.

Fire vs power

Power poles and lines block a street at Brookdale and Aaron Dr. in Hidden Valley where most of the homes were destroyed by fire on October 9, 2017 in Santa Rosa, California. Brian van der Brug | Los Angeles Times | Getty Images

Power poles and lines block a street at Brookdale and Aaron Dr. in Hidden Valley where most of the homes were destroyed by fire in Santa Rosa, California.

Complete devastation

A car sits in the middle of property destroyed from fires at Journey's End mobile home park in Santa Rosa, Calif., Tuesday, Oct. 10, 2017. Jeff Chiu | AP

A car sits in the middle of property destroyed from fires at Journey's End mobile home park in Santa Rosa, Calif.

Wildfire threatens wine country

Burned out wine bottles sit on a rack at the fire damaged Signarello Estate winery after an out of control wildfire moved through the area on October 9, 2017 in Napa, California. Tens of thousands of acres and hundreds of homes and businesses have burned in widespread wildfires that are burning in Napa and Sonoma counties. Getty Images

Burned out wine bottles sit on a rack at the fire damaged Signarello Estate winery after an out of control wildfire moved through the area on October 9, 2017 in Napa, California.

Before and after: A neighborhood in Santa Rosa, California

A before and after view of the Coffey Park neighborhood in Santa Rosa, California on Oct. 10th, 2017. Google Earth | Reuters

Ashes and concrete foundations are all that remain on Tuesday of many homes in the Coffey Park neighborhood of Santa Rosa.

Homes completely lost

A firefighter monitors a house burning in Santa Rosa, Calif., Monday, Oct. 9, 2017. Jeff Chiu | AP

Firefighters could only monitor some blazes as suburban homes burned in Santa Rosa.

Residents battling extreme elements

A resident rushes to save his home as an out of control wildfire moves through the area on October 9, 2017 in Glen Ellen, California. Getty Images

A resident in Glen Ellen, California, leaps from a rooftop as he rushes to save his home as an out of control wildfire moves through the area.

An apocalyptic sight in the Napa wine region

A truck burns as fire ravages the Napa wine region in California on October 9, 2017, as multiple wind-driven fires continue to whip through the region. Josh Edelson | AFP | Getty Images

A truck burns in the Napa wine region of Northern California as fires ravaged the area.

Santa Rosa and Napa Valley on fire

Smoke and flames rise as a wildfire from the Santa Rosa and Napa Valley moves through the area in California, on October 10, 2017. Tayfun Coskun | Anadolu Agency | Getty Images

Smoke and flames rise as a wildfire from the Santa Rosa and Napa Valley moves through the area in California.

Remnants of a home in Sonoma

A burned out home sits next a vineyard after an out of control wildfire moved through the area on October 9, 2017 in Sonoma, California. Getty Images

A burned out home sits next a vineyard after an out of control wildfire moved through the area on October 9, 2017 in Sonoma, California.

Hilton Hotel in Santa Rosa

A before and after view of the Hilton Hotel in Santa Rosa, Calif. on October 10, 2017. Google Earth | AP

Charred walls remain at the Hilton Hotel in Santa Rosa, with large portions of its roof burned away.

An out of control wildfire engulfs a barn

Fire consumes a barn as an out of control wildfire moves through the area on October 9, 2017 in Glen Ellen, California. Getty Images

Heroic efforts by firefighters as they protect homes

Napa County firefighter James George hoses down a fireline approaching a home Monday, Oct. 9, 2017, in Napa, Calif. Rich Pedroncelli | AP

Husks are left of damaged buildings after wildfires move on

The remains of a damaged buildings are seen after a wildfire moved through the area in Santa Rosa and Napa Valley in California, United States on October 10, 2017 leaving at least 10 people dead and destroying homes and businesses in their path. Tayfun Coskun | Anadolu Agency | Getty Images

Little remains of a building at the Signarello Estate winery in Napa

The remains of the fire damaged Signarello Estate winery after an out of control wildfire moved through the area on October 9, 2017 in Napa, California. Getty Images

A homeowner searches among the ruins left behind by the wildfires in Santa Rosa

Kristine Pond reacts as she searches the remains of her family's home destroyed by fires in Santa Rosa, Calif., Monday, Oct. 9, 2017. Jeff Chiu | AP

Aerial view as blaze rages on

An aerial photo of the devastation left behind from the North Bay wildfires north of San Francisco, California, October 9, 2017 California Highway Patrol | Golden Gate Division | Reuters