POPE VALLEY - A wildfire in rural Napa County that forced the evacuation of 200 homes has grown to 5.9 square miles.
The blaze, called the Butts Fire by fire officials, began shortly before noon Tuesday off of Butts Canyon Road in Pope Valley, northwest of Lake Berryessa. The fire quickly grew during the afternoon, and by Tuesday night it had burned 2,500 acres. By 4:30 p.m. Wednesday, it had grown to 3,800 acres.
Crews kept containment at 30 percent by late Wednesday night.
Firefighters made progress against the fire overnight and into the day thanks to better weather conditions -- higher humidity and lighter winds. However, Cal Fire spokesperson Daniel Berlant said fire activity increased around noon when temperatures soared into the 90s. The blaze then spread and continued burning northeast into neighboring Lake County.
Berlant said more bulldozers have been requested to help crews strengthen containment lines.
The fire has already damaged one home and four outbuildings. In addition to the mandatory evacuations, another 180 homes were threatened.
The fire is not threatening any major vineyards.
No injuries have been reported. The cause of the fire remains unknown.