Update: Acres burned in San Diego County grows to 560 acres, November Fire hits 50% containment

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Updated: 5:48 p.m. June 10

First discovered: 7 hours ago, 10:01 a.m. June 10

Initial location: Camp Pendleton, San Diego County, Calif.

Fire unit: US Marine Corps

Fire type: Wildfire

Fire name: November Fire

November Fire initially started today at 10:01 a.m. at Camp Pendleton in San Diego County, California.

It has burned 560 acres after being active for seven hours. By Wednesday evening, 50% of the fire was brought under containment. The blaze's cause remains under investigation.

Fire containment

This is what 50% containment means

The percentage indicates how much of the fire perimeter has been surrounded by a control line. In this case, it means that 50% of the wildfire is contained from spreading, while 50% 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

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This story was originally published June 10, 2026 at 11:10 AM.