Updates on California wildfires.
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Updated: 6:11 p.m. Aug. 21
First discovered: 15 hours ago, 2:33 a.m. Aug. 21
Initial location: Grantline Road and Glory Lane, Sacramento County, Calif.
Fire unit: Cal Fire Amador-El Dorado Unit
Fire type: Wildfire
Fire name: Grant Fire
Grant Fire initially started today at 2:33 a.m. at Grantline Road and Glory Lane in Sacramento County, California.
As of Friday evening, it had destroyed 18 acres. By Friday evening, the fire crew managed to contain 95% of the wildfire. At this time, there is no information available on the cause of the fire.
Fire containment
Interpreting what 95% containment means
Containment indicates what percentage of the fire perimeter has been surrounded by a control line. In this case, it means that 95% of the wildfire is halted from spreading, while 5% 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 August 21, 2026 at 4:09 AM.