A rare winter storm is sweeping through the northern Rockies this weekend.
Forecasts predict up to 16 inches of snow in the mountains of Idaho and Montana.
Freezing temperatures are anticipated, and wet conditions are possible across Wyoming and lower elevations.
Winter Storm Warnings are in effect for higher ground in the region.
In the eastern United States, officials are reviewing preparedness measures after earlier winter events, including a recent report on the Nashville storm that spotted issues and advised revisions.
The active warnings and cold spell have led to road advisories and readiness actions in the affected states.