We'll leave you with a few more photos.
Australia's expertise was sought by United States authorities because of our familiarity with bushfires; in the U.S. media such fires are referred to as "wildfires". Almost 10 days after it started near Highway 299 west of Redding, the fire is only 35 percent contained.
The Carr Fire in Redding killed six people and destroyed more than 1,000 homes, making it the sixth most destructive fire in California history.
"Unstable conditions, shifting winds, steep terrain, and dry fuels continue to challenge firefighters", a state fire update warned Wednesday evening (Thursday NZT), noting that 55kmh wind gusts were expected on ridge tops that could whip up the flames.
Our crews spent the next 24 hours providing structure defense as the fire devastated the Redding area.
Approximately 90 large fires are now being fought in 14 states and nearly 400,000 hectares of ground has been lost.
An inmate firefighter watches a helicopter drop water on the Loma fire burning near Morgan Hill, California.
A second wave of wildland firefighters from Florida reported for duty in California on Wednesday.
Only approximately 3800 state prison inmates in California meet the minimum-custody and low-risk requirements for the firefighting assignment. For our Shasta and Trinity County family, that time is now.
The Carr Fire is one of 17 big fires burning throughout the state. Gov.
Cal Fire's public information office Jonathan Cox said the California fires were larger in scale and burning at speeds previously unseen.
"Nature is very powerful and we're not on the side of nature, we are fighting nature with the amount of material we are putting in the environment", he said. It first flared up from what officials reported as a "mechanical failure of vehicle" on California Highway 299.
"We're in for a really rough ride, and it's going to get expensive, it's going to get risky", Brown said.
At a separate news conference on Wednesday, Governor Jerry Brown said the Carr Fire typified a "new normal" authorities are encountering, as large, extremely intense and swiftly spreading wildfires occur more often over a longer fire season.