A wildfire is rapidly growing in an area northwest of Los Angeles, forcing thousands of people living in and around Piru and Castaic to evacuate.

The wildfire, now known as the Canyon Fire, was initially believed to cover about 30 acres. However, it has rapidly spread to an overwhelming 1,500 acres across Los Angeles and Ventura counties, as estimated by CALFire by 10pm ET.

The fire ignited on Thursday around 2pm local time northeast of Piru, an unincorporated area with just over 2,000 residents, as reported by Ventura County officials.

The quick spread of the Canyon Fire was exacerbated by a heat wave that experts had previously cautioned about. The National Weather Service noted that temperatures near Lake Piru soared to nearly 100 degrees.

Officials have now said that the fire is moving away from Piru but is moving east toward Interstate 5 in LA County.

This presents a threat chiefly to Hasley Canyon, Val Verde and Hathaway Ranch, as well as the many power lines in that area.  

Andrew Dowd, spokesperson for the Ventura County Fire Department, told The New York Times that approximately 150 firefighters are on the ground working to extinguish the flames.

In addition, authorities have deployed 11 fixed-wing aircraft and seven helicopters to drop water over the affected regions, based on updates from the Ventura County Fire Department.

Pictured: A firefighter battled the growing Canyon Fire, which broke out on Thursday afternoon and has already exploded to 1,500 acres

Pictured: One of the 11 helicopters dispatched to fight the fire is seen dropping water near Lake Piru

In Ventura County, evacuation orders were issued for the Lake Piru Recreation area as well as the communities of Camulos and Piru.

In Los Angeles County, residents of Romero, Val Verde, Oak Canyon, Hasley Canyon and Castaic are also under evacuation orders.

Although Santa Clarita, the nearest major city, hasn’t been ordered to evacuate, officials advise residents to avoid the hazardous area at all costs.

Kathryn Barger, who chairs the Los Angeles County supervisor board, urged citizens to take evacuation orders seriously.

She said the Canyon Fire ‘is spreading fast under extreme heat & dry conditions near Ventura–LA County line’.

‘If you’re in Santa Clarita, Hasley Canyon, or Val Verde, take evacuation orders seriously — when first responders say GO, leave immediately. Keep aware–please don’t risk lives,’ she added.

For people who are fleeing the flames, an evacuation center has been set up in the East Gymnasium of the College of the Canyons, located at 26455 Rockwell Canyon Road in Santa Clarita.

The Canyon Fire is now the fourth major wildfire in southern California in the last few weeks, the most recent being the Gifford Fire last week.

That blaze scorched 98,000 acres of land, making it the largest wildfire in California this year.

The Canyon Fire also comes after a series of wildfires in January destroyed more than 16,000 structures, burned around 40,000 acres of land and killed 30 people (Pictured: A man rides his golf cart away from his home as the Canyon Fire rages around him)

Pictured: A garage burns from the Canyon Fire in Halsey Canyon

The Canyon Fire also comes after a series of wildfires in January destroyed more than 16,000 structures, burned around 40,000 acres of land and killed 30 people.

The most destructive was the Palisades Fire, which made areas of the Pacific Palisades, Topanga, Malibu and the Santa Monica Mountains completely unrecognizable.

The Eaton Fire was second biggest blaze to ignite during that time, burning more than 14,000 acres in the San Gabriel Mountains while devastating the community of Altadena.

These fires costed $250 billion in damages, according to a report from UCLA in February.

Additionally, the damage was estimated to have dinged Los Angeles County’s GDP by $4.6 billion.

It’s unclear how the Canyon Fire will compare. As of the latest update, it is still zero percent contained.