Update: 84% containment reached for Shore Fire in Riverside County

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Updated: 6:37 a.m. June 19

First discovered: 4 days ago, 3:23 p.m. June 15

Initial location: San Timoteo Canyon Road, S/west of Calimesa, Riverside County, Calif.

Fire unit: Cal Fire Riverside Unit

Fire type: Wildfire

Fire name: Shore Fire

Shore Fire initially started 3:23 p.m. June 15 on San Timoteo Canyon Road, S/west of Calimesa in Riverside County, California.

After being active for four days, it has burned 3,085 acres. A fire crew of 583 has been working on site and they managed to contain 84% of the fire as of Friday morning. The cause of it remains under investigation.

The firefighting efforts involve 57 engines, 11 water tenders, seven dozers and 13 hand crews. 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 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 Warning in effect for the following zones:

117-Shore Fire Perimeter

Evacuation Shelters

Evacuation and animal shelters established for the Shore Fire have been closed. Residents in need of assistance, shelter information, or access to virtual sheltering resources are encouraged to contact American Red Cross at 1-800-RED-CROSS or 1-800-733-2767.

Residents & citizens in need of assistance or seeking relief from high temperatures are encouraged to utilize Riverside County's Cool Centers. A list of available locations and operating hours can be found at: https://capriverside.org/cool-centers

See live video from the area:

Https://cameras.alertcalifornia.org/?id=Axis-DunlapAcres2

Fire containment

What does it mean for a fire to be 84% contained?

The percentage indicates how much of the fire perimeter has been surrounded by a control line. In this case, it means that 84% of the wildfire is contained from spreading, while 16% 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 19, 2026 at 5:05 AM.