Update: 10% containment reached for Tusil Fire in San Diego County

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: 8:41 p.m. May 19

First discovered: 7 hours ago, 1 p.m. May 19

Initial location: Tusil Road, Campo Reservation, San Diego County, Calif.

Fire unit: Cal Fire San Diego Unit

Fire type: Wildfire

Fire name: Tusil Fire

Tusil Fire initially started today at 1 p.m. on Tusil Road, Campo Reservation in San Diego County, California.

It has burned 1,000 acres after being active for seven hours. As of Tuesday evening, a crew of 150 firefighters succeeded in containing 10% of the fire. The cause is, however, still being investigated.

According to Cal Fire, "Numerous firefighting air tankers from throughout the State are flying fire suppression missions as conditions allow."

Evacuation information from Cal Fire

Evacuation Orders

Immediate threat to life. This is a lawful order to LEAVE NOW. The area is lawfully closed to public access.

Evacuation Orders have been issued for the following zones:

SDC-2170

SDC-2172

SDC-2240

Evacuation Warnings

Potential threat to life and/or property. Those who require additional time to evacuate, and those with pets and livestock should leave now.

Evacuation Warnings have been issued for the following zones:

SDC-2169

SDC-2171

SDC-2173

SDC-2325

SDC-2326

Fire containment

What does 10% containment mean?

Containment indicates what percentage of the fire perimeter has been surrounded by a control line. In this case, it means that 10% of the wildfire is halted from spreading, while 90% 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 May 19, 2026 at 2:37 PM.