Just how many rivers are there in the United States? Based on this map, a hell of a lot more than you might think. Nelson Minar put this wonderful map together. He ...

Southern California is bracing for heavy rain, gusty winds and cooler temperatures as a Pacific storm, fed by an atmospheric ...

A "strong atmospheric river" could bring more rain and mountain snow to the Northwest, according to forecasters.

Atmospheric rivers are a major factor in extreme rain and snowfall in the West. Atmospheric rivers carry huge amounts of water over thousands of miles. Atmospheric rivers have been in the headlines ...

Advocacy group American Rivers compiles a yearly list of America's most endangered rivers. This year's most endangered river is the Colorado River. It's the river's second year topping the list.