Making steady progress Saturday against the most destructive wildfire in Colorado history, crews kept a wary eye on weather that was getting warmer and drier as National Guard troops were deployed to help local police get things back to normal.

“The weather is making progress in a bad direction. Hotter, drier, with a chance of thunderstorms in the afternoon. Winds will shift from one direction to another,” said Incident Commander Rich Harvey.

The 26-square-mile Waldo Canyon fire was 45 percent contained by Saturday afternoon. It was one of many burning across the West, including eight in Utah and a fast-growing blaze in Montana that forced residents in several small communities to leave.