An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Storms dumped heavy snow and freezing rain on a swath of the eastern U.S. stretching from Kentucky to the nation’s capital, ...

A new rain storm is bearing down on California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

Southern California is in desperate need of rain, but it could come far too fast this week, especially in areas recently ...

An atmospheric river is expected to bring torrential rain to California this week, threatening parts of the state with flash ...

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

A winter storm warning has been issued for an area of central Minnesota ahead of up to 7 inches of snow through Saturday ...

There is now a 30% chance of intense rain between Feb. 12 and 15 in Los Angeles, Ventura, Santa Barbara and San Luis Obispo ...

The Bay Area saw significant storm impacts Tuesday as an atmospheric river brought heavy rain, urban and river flooding, and ...

A Pineapple Express forms when the jet stream dips south into the tropical Pacific near Hawaii, scooping up warm, moist air ...

Another storm will impact Northern California starting Thursday morning. That event is forecast to be somewhat less impactful than the high winds and mudslides on Tuesday that caused a home to ...