A round of frigid temperatures is sweeping across much of the United States this week, bringing dangerously cold conditions ...

Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land, they can cause heavy rains and snow. Here’s a look at the phenomenon: ...

The rain has intensified in California, where an atmospheric river brought heavy downpours, winds and flooding to areas ...

Flood warnings issued in parts of Southeast as heavy rains and severe storms threaten. And melting snow could lead to ice jams in some areas.

Snow, sleet and freezing rain were expected to continue pummeling the central Appalachians and mid-Atlantic states Wednesday, ...

Heavy snow and freezing rain from Kentucky to the nation's capital caused hundreds of crashes and left tens of thousands of ...

SAN FRANCISCO – A series of "atmospheric river" storms aimed at Northern California have already caused flooding, downed trees, landslides and at least one house on a scenic river to slide into ...