The nation's weather

Active weather will linger in the West on Sunday, while the eastern U.S. remains sunny and dry.

A low pressure system in the Gulf of Alaska continues pushing waves of low pressure over the western U.S., creating disturbed weather. The system that brought snow to the Rockies will advance northeastward and move over the Northern Plains and into central Canada on Sunday. Temperatures will remain above freezing, mainly producing rain showers. However, the back side of this system will pull in cool air from the North and churn up a wintry mix of rain and snow over western North and South Dakotas.

A cold front extending southward from this system will spread over the Upper Midwest …