Updated at 12:06 a.m. ET on Sunday
Fire crews battling blazes across the western United States are hoping a change in conditions, including increased humidity and cooler temperatures, will aid them in containment efforts.
Some 29,000 personnel are working to stop 97 large fires that have burned some 4.7 million acres across several states, according to the National Interagency Fire Center. About 40 of those fires have prompted evacuation orders in California, Oregon, Washington, Colorado, Idaho and Utah.