The largest fire in the United States is burning through tinder-dry forest in Utah. It is fueled by conditions that fire managers and experts call unprecedented. There was little relief from the strong winds on Saturday. But crews were treated to higher humidity levels than expected while fighting the fast-moving Cottonwood Fire. Gov. Spencer Cox asked people to pray for rain. He also declared an emergency, and the state restricted fireworks as a result. Red flag warnings were also in effect for parts of California, Nevada, Arizona, New Mexico and Colorado.