California’s Airport Fire explodes in size, evacuations underway
The Airport Fire, which broke out east of Irvine on Monday, September 9, 2024, has rapidly grown to more than 3 500 ha (8 500 acres) on Tuesday and to 19 028 ha (47 029 acres) by Wednesday — now reaching Riverside County. Authorities have issued evacuation orders and warnings for several communities as firefighting efforts continue amid severe heatwave conditions.

Image credit: Orange County Fire Authority
- The fire spread rapidly, reaching nearly 2 225 ha (5 500 acres) within the first eight hours, moving eastward toward Riverside County.
- As of Wednesday, 7 people have been injured — 2 civilians and 5 firefighters.
- The fire is currently threatening 10 500 structures.
The Airport Fire erupted in the hills of Orange County, Southern California, on Monday, rapidly growing to more than 2 023 ha (5 000 acres) within just a few hours. The fire began around 13:30 local time, roughly 24 km (15 miles) east of Irvine, near an area known for remote-controlled model airplanes. The fire, which remains uncontrolled, has prompted evacuation orders for several communities.
Parts of Trabuco Canyon, located in the foothills of the Santa Ana Mountains, were ordered to evacuate, and surrounding neighborhoods were issued evacuation warnings. The fire occurred during a severe heatwave in Southern California, with temperatures reaching over 38 °C (100 °F) in many areas.
According to Cal Fire, the Airport Fire grew even larger overnight, swelling to over 3 439 ha (8 500 acres). Orange County Fire Authority Deputy Chief TJ McGovern reported that the fire was believed to have been unintentionally started by a public works crew, although Cal Fire stated that the cause is still unclear and under investigation.
“The cause of the fire was a spark from heavy equipment,” said McGovern. He added that the crew was placing boulders to replace barriers restricting access to vegetation when they noticed smoke coming from the loader’s basket.
The fire spread rapidly, reaching nearly 2 225 ha (5 500 acres) within the first eight hours, moving eastward toward Riverside County.
By Tuesday morning, it remained at 0 % containment. Authorities noted that containment represents the portion of the fire’s perimeter that firefighters believe will no longer spread, either due to natural barriers or firefighting efforts.
BREAKING: Airport Fire explodes to 8,500 acres in Southern California, forcing evacuations!
— Facts Prime (@factsprime35) September 10, 2024
Intense heat wave fuels rapid spread.
Firefighters battle to contain blaze. Stay safe, SoCal! #AirportFire #CaliforniaWildfire #HeatWave pic.twitter.com/7F69QfXLcb
Another flare up of the #AirportFire now making its way up the western edge of Santiago Peak. Evacuation warnings now issued for parts of #LakeElsinore on the eastern side of the mountains. The latest @knxnews @ALERTCalifornia pic.twitter.com/rd6KmkSogy
— Brian Douglas (@BrianDouglasKNX) September 10, 2024
Fire retardant plane hard at work along with helicopter drawing water. (Slept a few hours) stay safe all!! Photo from back yard just now. #AirportFire #OrangeCounty pic.twitter.com/WvYDeOf0PO
— Skarsgard Fans (@vs4as) September 10, 2024
The Airport Fire, Rancho Santa Margarita, Orange county, CA. 8500 acres, zero containment #AirportFire #TrabucoCanyon #OrangeCounty #canonusa #R5markII #OCFA #wildfires #wildfire #ktla #canon #TuesdayFeeling #photojournalism #photography pic.twitter.com/E0g405ZtwE
— Deck Photography (@Stever1552Steve) September 10, 2024
Clear skies turned to black smoke in a matter of minutes again as the #AirportFire continues to burn in Trabuco Canyon.
— Gigi Graciette (@GigiGraciette) September 10, 2024
Water and Phoschek drops underway by @OCFireAuthority@foxla pic.twitter.com/q2bzUVlfcG
This is inaccurate. What you're seeing is CDF crews saving the repeaters with a textbook firing operation. That's *their* fire they put on the ground. Here you can see them cleaning up the fire's edge and knocking the lights out. #AirportFire https://t.co/SHX9PsraNZ pic.twitter.com/se1EYqcBk1
— Hotshot – Movie (@Hotshot_Movie) September 10, 2024
Evacuation orders were first issued around 15:00 local time on Monday, for residents living along Meander Lane and in the Robinson Ranch community. O’Neill Regional Park’s campgrounds were also closed. Additionally, Cal Fire issued evacuation warnings for areas in Riverside County, including those east of the Orange County line, west of the 15 Freeway, south of Bedford Motor Way, and north of Ortega Highway.
Several schools were closed on Tuesday, due to the fire, including all schools in the Lake Elsinore Unified School District. The Corona Norco Unified School District also closed Wilson, Temescal Valley, and Todd elementary schools, while the Saddleback Valley Unified School District closed Robinson and Trabuco elementary schools.
Santa Margarita Catholic High School, located above the canyon where the fire started, did not hold classes on Tuesday either. The school was not under immediate threat, but officials stated, “We are taking this precaution for the safety and well-being of our community,” citing nearby evacuation notices.
Not a pretty sight! This is what you're seeing if you're on the NB #5fwy heading thru #SanJuanCapistano right now. That's the #AirportFire ahead burning next to #TrabucoCanyon and so far there is no containment. The latest on all the fires burning in #SoCal @knxnews pic.twitter.com/nqWZRhkOLT
— Brian Douglas (@BrianDouglasKNX) September 10, 2024
1-minute #GOESWest True Color RGB images showed impressive sustained #pyrocumulus jumps associated with the #LineFire, #BridgeFire and #AirportFire in #SoCal: https://t.co/1S2MvZuzf4; #CAwx @NWSSanDiego https://t.co/cuKfTkq7k8 pic.twitter.com/gNQVNKuMRU
— Scott Bachmeier (@Wisc_Satellite) September 10, 2024
Take a look at our fire activity update for September 9, 2024! For more information on active statewide incidents, visit https://t.co/fJhhKfaaAY. pic.twitter.com/puHVGbbscE
— CAL FIRE (@CAL_FIRE) September 9, 2024
Road closures were also reported in several areas of Orange County. These included intersections such as Plano Trabuco Road and Joshua Drive, Plano Trabuco Road and Robinson Ranch Road, Antonio Parkway and Alas de Paz, Trabuco Canyon and Trabuco Creek roads, Santa Margarita and Antonio Parkways, Avenida Empresa and Santa Margarita Parkway, and Santiago Canyon Road and Live Oak Canyon Road.
A shelter was set up at the Rancho Santa Margarita Bell Tour Regional Community Center, located at 22232 El Paseo, for evacuated residents. Animal shelters were also available for those needing to evacuate their pets, with one designated for large animals at the Orange County Fairgrounds in Costa Mesa and another at a Ralphs parking lot at 31481 Santa Margarita Parkway.
As of Tuesday, three people have been injured — 2 firefights who sustained heat-related injuries and one civilian injured due to smoke inhalation.
Updates
06:13 UTC, September 11
According to the latest report by Cal Fire, the Airport Fire has rapidly expanded, growing from 8 510 ha (21 031 acres) to 19 028 ha (47 029 acres), now reaching Riverside County.
The fire has injured two civilians and five firefighters and is currently threatening 10 500 structures.
Currently, 126 engines, 629 firefighting personnel, eight water tenders, seven helicopters, seven hand crews, and six bulldozers have been assigned to control the blaze.
Several areas in Riverside County are under evacuation orders or warnings. Two evacuation sites and one animal shelter have been established in the county.
Three large wildfires continue to burn in Southern California.
— CIRA (@CIRA_CSU) September 11, 2024
All three fires have created large pyrocumulus smoke plumes, blanketing skies with smoke. pic.twitter.com/Tr5gkBupAE
We are proud of the dedicated firefighters and law enforcement officers who have committed themselves to a tireless firefight, and we thank their families who support them while they are away from home. pic.twitter.com/8K5rnPa25p
— OCFA PIO (@OCFireAuthority) September 11, 2024
References:
1 Airport fire incident update – Calfire – September 10, 2024
2 Airport Fire – Calfire – Accessed on September 10, 2024
3 Wildfire Erupts in Orange County, Forcing Evacuations – New York Times – September 9, 2024
4 Airport Fire in Orange County, CA, Spreading Fast – Firehouse – September 10, 2024
I am an Assistant Editor and Severe Weather & Science Journalist at The Watchers, specializing in real-time severe weather coverage, geophysical event reporting, and research-driven scientific analysis. You can reach me at rishav(at)watchers(.)news.


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