Evacuation Orders Issued, Later Lifted
The fire grew to be large and began threatening homes in nearby residential areas. At about 8:15 p.m., Chino Valley Fire District officials ordered a group of homes evacuated in the foothills below the fire. An evacuation center was opened at the Chino Hills Community Center, 14250 Peyton Drive, to aid displaced residents. Roads were also closed, including Chino Hills Parkway between Falling Star and Country Walk, and Grand Avenue between Grand Avenue Park and the Chino Hills city limit. All evacuation orders and warnings were lifted by 10:15 pm as firefighters made progress containing the blaze.
Aerial Footage Shows Burning Vehicle
Aerial footage from the scene showed a car on fire and stopped on Grand Avenue. It is not yet known whether the vehicle had any part in starting the blaze, and the cause of the fire is being actively investigated by firefighters. Sometimes, large flames could be seen racing through the brush, creating a dramatic picture of the danger to the surrounding foothills and residential communities in the area.
Firefighters Get the Upper Hand
By around 9 pm, fire crews seemed to be gaining the upper hand, despite the ferocity of the blaze in its opening hours. Ground crews and water-dropping aircraft were dispatched to attack the flames from many angles. The response included not just Cal Fire San Bernardino County and Chino Valley firefighters but also added crews from Los Angeles County and Cal Fire Riverside County, highlighting the magnitude of the effort it takes to combat the rapidly spreading brush fire.
No injuries or structural damage were reported.
Authorities said no injuries were reported and no structures were damaged during the incident. Evacuation orders were issued in time, and emergency resources were mobilized quickly, which is credited with keeping residents safe at the height of the blaze. The community center's evacuation center was opened as a precaution and did what it was supposed to do before being stood down once the danger had passed.
The investigation continues.
The cause of the Grand Fire is still being investigated. While a burning vehicle on Grand Avenue has received attention, no official link has been established between the vehicle and the source of the fire. All available evidence is still being reviewed by authorities to determine how the fire started. As the fire is mostly contained and evacuation orders are lifted, authorities are now working to investigate and allow residents to return home safely to the foothills area of Chino Hills.
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Grand Fire in Chino Hills Triggers Temporary Evacuation Orders
Multiple fire agencies from the area quickly responded to a brush fire that broke out in the Tonner Canyon area above Chino Hills on the evening of May 13, 2026. The blaze, called the Grand Fire, began around 7:15 p.m. near Grand Avenue and Pleasant Hill Drive, close to Grand Avenue Park. The fire burned through dry brush in the hillside area, with Cal Fire and San Bernardino County Fire Department crews among the first on scene.



