Update, 7 a.m. Thursday
The fire reached 100 percent containment at about 10 p.m. Wednesday night, Cal Fire said. Ultimately, the blaze burned 1,127 acres.
Update, 2:45 p.m.
The forward progress of the fire has been stopped, Cal Fire said. The fire is now 60 percent contained, and the structure threat has been mitigated.
Update, 1:35 p.m.
The fire has burned about 400 acres and is 50 percent contained, Cal Fire said. The agency said a “large amount” of dark smoke may be visible throughout the eastern part of the county.
Update, 1 p.m.
The fire has burned about 120 acres and is 40 percent contained, Cal Fire said. One structure and solar array are threatened by the fire, but “crews are making good progress toward mitigating the threat and containing fire,” Cal Fire said.
Update, 12 p.m.
The fire has burned about 100 acres of grass, Cal Fire said.
Firefighters are responding to a fire in California Valley that has currently burned about 50 acres, according to a tweet from Cal Fire.
The fire was first reported at about 11 a.m. in the area of Boulder Creek Road and Belmont Trail off Highway 58, according to Cal Fire. The fire is burning in the grass, the agency said.
By 11:40 a.m., Cal Fire said the fire had the potential to grow to 100 acres.
The agency said it was designating the fire as a two-alarm blaze based on the potential for growth, which means it will request additional resources.
Last week, a fire in California Valley off Belmont Trail and Costa Mesa Road burned 835 acres.
This story will be updated as information becomes available.