Thousands of acres on fire in LA

Firefighters are battling to control huge wildfires in Los Angeles that have killed at least 11 people, devoured thousands of buildings and forced tens of thousands of people to flee their homes.

It’s a rapidly changing situation – these maps and pictures show the scale of the challenge, where the fires are and the damage they have caused.

The largest blaze, in the Pacific Palisades area is the most destructive fire in Los Angeles history. More than 21,000 acres have now burnt.

Placing the area affected on to maps of New York and London gives a sense of how big that is, stretching from Clapham to Greenwich in the UK’s capital, or across large areas of lower Manhattan and Queens.

Six fires are currently burning in the Los Angeles area.

• Palisades fire: The largest active fire is burning between Santa Monica and Malibu. Burnt area: 21,596 acres.

• Eaton fire: Second largest fire burning north of Pasadena. Burnt area: 14,117 acres.

• Kenneth fire: In the West Hills area, just north of the Palisades. Began on Thursday afternoon and has so far burned 1,052 acres.

• Hurst fire: To the north east of the city. Burnt area: 771 acres.

• Lidia fire: Reported in the hills north of Los Angeles. Burnt area: 395 acres.

• Archer fire: The newest blaze. Started on Friday and has burnt through 19 acres.

But three fires have been contained.

Woodley fire: Small fire reported in local parkland. Burnt area: 30 acres.

Olivas fire: Small fire first reported in Ventura county about 50 miles (80km) east of Los Angeles. Burnt area: 11 acres.

Sunset fire: Reported in the historic Hollywood Hills area near many famous landmarks, including the Hollywood sign. Burnt area: 43 acres.

Officials say more than 10,000 structures have been destroyed by the two biggest fires – about 5,000 each in the Palisades and Eaton blazes.

As the maps below show, the fires are largely burning uninhabited areas but they have spread into populated areas and many more buildings could be at risk depending on how the infernos spread.

Among the buildings already destroyed in the Palisades blaze are many of the exclusive properties that line the Malibu waterfront.

Slide your cursor across the image below to see an aerial view of what the area used to look like and what it looks like now.

Both the Palisades and Eaton fires can be seen from space, as shown in the satellite image below.

A combination of an exceptionally dry period – downtown Los Angeles has only received 0.16 inches (0.4cm) of rain since October – and powerful offshore gusts known as the Santa Ana winds have created ripe conditions for wildfires.

Santa Ana winds flow east to west through southern California’s mountains, according to the National Weather Service.

Blowing across the deserts further inland, they create conditions where humidity drops, which dries out vegetation. If a fire does start, the winds can fan smouldering embers into an inferno in minutes.

The map below shows just how rapidly the Palisades fire spread, intensifying in a matter of hours. At just after 14:00 on Tuesday it covered 772 acres and within four hours it had approximately tripled in size.

The Palisades fire now covers almost 20,000 acres and thousands of people have been forced to evacuate the area, as more than 1,400 firefighters try to tackle the blaze.

The Eaton fire has also grown rapidly from about 1,000 acres on Tuesday to more than 13,000 acres, forcing thousands more people to flee.

Photographers have also been capturing the heartbreaking level of damage the fires have caused on the ground – as these before-and-after photos demonstrate.

The Jewish Temple in Pasadena was destroyed by the Eaton fire. The Centre’s website says it has been in use since 1941 and has a congregation of more than 400 families.

With authorities still working to contain the fires, the scope of the losses is still unfolding but they are on track to be among the costliest in US history, with losses already expected to exceed $135bn (£109.7bn).

There is a glimmer of hope for firefighters, as the fire weather outlook for southern California has been downgraded from “extremely critical” to “critical”.

But BBC weather forecaster Sarah Keith-Lucas says there is no rain forecast in the area for at least the next week, so conditions remain ripe for fire.