Update: Acres burned in Riverside County grows to 35.5, Yearling Fire now 90% contained

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Updated: 6:36 a.m. April 16

First discovered: 14 hours ago, 4:09 p.m. April 15

Initial location: Yearling Way, Pedley, Riverside County, Calif.

Fire unit: Cal Fire Riverside Unit

Fire type: Wildfire

Fire name: Yearling Fire

Yearling Fire initially started 4:09 p.m. April 15 on Yearling Way, Pedley in Riverside County, California.

After being active for 14 hours, it has burned 35.5 acres, an increase of two acres since the last update. By Thursday morning, 90% of this fire was brought under containment. However, the cause is still under investigation.

Fire containment

Understanding what 90% containment means

Containment indicates what percentage of the fire perimeter has been surrounded by a control line. In this case, it means that 90% of the wildfire is halted from spreading, while 10% 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 April 16, 2026 at 6:41 AM.