The wording and definition were changed and refined a bit as atmospheric scientists at MIT studied these storms in the 1970s.

The National Weather Service warned of potentially "catastrophic" impacts from the flooding that's setting new records.

An atmospheric river-fuelled storm is soaking Western Washington and other parts of the Pacific Northwest, bringing heavy rain and snowfall that’s resulted in flooding, road closures and emergency ...

Record river flooding is ongoing in parts of Washington State, but following a drier weekend, a new worry for wetter weather ...

A powerful atmospheric river is set to bring heavy rain and mountain snow to the Pacific Northwest. Parts of Washington and Oregon could see a month's worth of rain in just a few days, raising flood ...

A powerful atmospheric river is set to bring heavy rain, strong winds, and mountain snow to the Pacific Northwest. The storm system also poses a risk of flash flooding and mudslides for parts of ...

“Deja vu.” That was how John Perry, the mayor of Everson, Washington, described what it felt like to watch as flood waters ...

There has been a lot of talk about the term “atmospheric river” in the last month or so. Some feel the term is now being overused or even misused. So what is an atmospheric river? The term first ...

SAN DIEGO COUNTY, Calif. — An intense storm is poised to bring strong rain, wind, cooler temperatures, and maybe even thunderstorms to San Diego as an atmospheric river sweeps across Southern ...

As a storm moves through Northern California, the real work is just beginning for atmospheric river researchers. "Understanding the storms helps them make the simple decision of do you fill or do you ...

A powerful atmospheric river will hit the Pacific Northwest starting Thursday, bringing heavy rain, gusty winds and mountain snow. The system may also impact parts of California, raising the risk of ...