Wildfires burn across US West threatening Flagstaff, Arizona

Officials are warning rural residents near an Arizona wildfire to be ready to leave at a moment’s notice.

Dozens of wildfires were burning in hot, dry conditions across the western United States, including a blaze touched off by lightning that was moving towards northern Arizona’s largest city. The mountainous city of Flagstaff was shrouded in smoke Monday. The national forest surrounding it announced a full closure set to begin later this week — the first time that has happened since 2006. Intense heat that has hampered firefighting efforts more broadly was expected to moderate in the coming days. But, the National Weather Service noted it could bring uncertainty for fire crews.