On Sunday, crews battled a massive fire in northern California, as authorities in the western US state warned of increasing winds and rising daytime temperatures. The Park Fire, located outside of Chico, had burned over 357,000 acres (144,500 hectares) by Sunday afternoon, making it the seventh-largest fire ever recorded in the state's history, according to Cal Fire incident commander Billy See. Progress was made on Saturday due to light wind and cool weather, allowing firefighters to declare 12 percent of the blaze controlled. However, See warned that conditions were changing, with increased solar heating and stronger winds in the upper canyons, leading to heightened fire activity. The fire, which has forced around 4,200 people to evacuate their homes in Butte County, is burning through a predominantly rural, mountainous area about 90 miles (145 kilometers) north of Sacramento. Firefighters are dealing with challenging terrain, among other issues, said operations section chief Mark Brunton. Approximately 4,000 personnel are working on the fire, supported by aircraft and bulldozers. Although no deaths have been reported, 67 structures have been damaged or destroyed. The fire spans across Butte County, where 53,000 acres have burned, and neighboring Tehama County, where 304,000 acres have been affected. The blaze has produced a massive column of dense gray smoke, which has spread over nearby states. On Thursday, a 42-year-old man was detained on suspicion of starting the fire by pushing a burning car into a ravine. Chico is close to Paradise, a city devastated by a 2018 fire that was California's deadliest ever, claiming 85 lives. Experts attribute the increase in extreme weather events to climate change, accelerated by human actions. In Oregon, the Durkee Fire, sparked by a lightning strike earlier this month, has consumed nearly 290,000 acres and was about 50 percent contained, according to the state's wildfire response and recovery agency. In western Canada, wildfires destroyed nearly a third of the tourist town of Jasper before being brought under control on Sunday.