The state's largest wildfire gained more ground Tuesday, expanding to 72,500 acres with only 15 percent containment, according to Cal Fire, and nearly 1,000 structures were threatened.
The County Fire has moved rapidly since Saturday, ripping through dry grass, oak stands and brush about 55 miles northwest of Sacramento between Highway 16 and Lake Berryessa. The blaze still has the potential to grow, Cal Fire said Tuesday. Crews are working to build containment lines to prevent the spread of fire, but the difficult terrain is posing a challenge.
Mandatory evacuations for areas of Yolo and Napa counties remain in effect. The Napa County Sheriff's Office also issued evacuation warnings for communities at the southern end of Lake Berryessa on Monday night. Residents of Berryessa Highlands, Markley Cove Resort and Pleasure Cove Resort should be prepared to evacuate in case a mandatory order is necessary, Cal Fire said in a news release. On Tuesday night, Cal Fire officials said 980 structures were threatened.
An evacuation center is located at the Boy Scout Cabin at 17020 Yolo Ave. in Esparto, and it is staffed 7 a.m. to midnight.
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About 2,162 firefighters are fighting the blaze with the help of 18 helicopters, 50 bulldozers and 187 fire engines.
No structures have been reported destroyed.
The County Fire erupted Saturday afternoon in Guinda amid a red flag weather warning for hot temperatures and high winds in Northern California.
As of Monday, Cal Fire said 269 fires broke out in the last week, including nine large fires over the weekend that included the County Fire.