Updates on California wildfires.
The creation of this content included the use of AI based on templates created, reviewed and edited by journalists in the newsroom. Read more on our AI policy here.
Updated: 6:41 p.m. July 22
First discovered: 15 hours ago, 2:55 a.m. July 22
Initial location: Mordigan Ln and Gomez Greek Rd, San Diego County, Calif.
Fire unit: Cal Fire San Diego Unit
Fire type: Wildfire
Fire name: Rainbow 3 Fire
Rainbow 3 Fire initially started today at 2:55 a.m. at Mordigan Ln and Gomez Greek Rd in San Diego County, California.
By Wednesday evening, 26.2 acres of land had been scorched by it. As of Wednesday evening, the fire crew succeeded in containing 5% of the fire. At this time, there are no details on the cause of the fire.
Fire containment
What does it mean for a fire to be 5% contained?
Containment indicates what percentage of the fire perimeter has been surrounded by a control line. In this case, it means that 5% of the wildfire is halted from spreading, while 95% is still uncontrolled.
Containment is part of a larger plan for managing a wildfire. It is normally expressed as a percentage and it refers to how much of the fire perimeter has been surrounded/enclosed by a control line that firefighters create. The containment percentage indicates a certain level of control, but it doesn’t always correlate to safety level. Also, it’s important to note that containment doesn’t mean a fire is out.
How is containment measured?
The incident’s central command constantly receives progress reports from firefighters on the ground. As the fireline is constructed, inspected or reinforced, mappers record those details to adjust the containment percentage. The percentage tells the public how much of the fire perimeter is believed to not go beyond the control lines.
Source: Cal Fire
United Robots Sacramento
This story was originally published July 22, 2026 at 10:30 AM.