This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

A wildfire burning in Yolo County grew Wednesday as high temperatures and breezy conditions continued to stoke the blaze.

The County fire had spread to 86,000 acres and was 27% contained as of Wednesday evening, the California Department of Forestry and Fire Protection said. More than 3,400 fire personnel are on hand to fight the blaze, which has moved into Napa County as well.

Crews worked aggressively through Tuesday night to build containment lines around the fire, though steep and inaccessible terrain made it difficult for firefighters on the northern side of the blaze to make progress.

Forecasters say record-breaking heat and gusty winds expected by the weekend will prime California’s brush-covered hills and valleys for fast-moving wildfires, but fire officials said Wednesday’s cooler weather and higher humidity helped firefighters before temperatures warm up over the weekend.

Read the full story on LATimes.com.