Update: Containment progress - Putah Fire in Yolo County at 20%

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Updated: 8:08 a.m. June 9

First discovered: 20 hours ago, 11:34 a.m. June 8

Initial location: Highway 128, west of Winters, Yolo County, Calif.

Fire unit: Cal Fire Sonoma-Lake-Napa Unit

Fire type: Wildfire

Fire name: Putah Fire

Putah Fire initially started 11:34 a.m. June 8 on Highway 128, west of Winters in Yolo County, California.

After being active for 20 hours, it has burned 361.7 acres. A fire crew of 265 effectively contained 20% of the fire by Tuesday morning. However, the cause is still under investigation.

The fire is fought by 15 engines, seven water tenders, six helicopters, seven dozers and 12 hand crews. According to Cal Fire, "Numerous firefighting air tankers from throughout the State are flying fire suppression missions as conditions allow."

See live video from the area:

Https://cameras.alertcalifornia.org/?id=Axis-Winters2

Fire containment

This is what 20% containment means

Containment indicates what percentage of the fire perimeter has been surrounded by a control line. In this case, it means that 20% of the wildfire is contained from spreading, while 80% 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 9, 2026 at 12:21 AM.