Cooler Weather Helps Firefighters Corral a Third of Massive California Blaze

CHICO, Calif.—Fire crews battling California’s largest wildfire this year have corralled a third of the blaze aided in part by cooler weather, but a return of triple-digit temperatures could allow it to grow, fire officials said Sunday. Cooler temperatures and increased humidity gave firefighters “a great opportunity to make some good advances” on the fire in the Sierra Nevada foothills, said Chris Vestal, a spokesman for the California Department of Forestry and Fire Protection. The Park Fire has scorched 627 square miles (1,623 square kilometers) since igniting July 24 when authorities said a man pushed a burning car into a gully in Chico and then fled. The blaze was 30 percent contained as of Sunday....