The Pineapple Express is a type of atmospheric river— a narrow, fast-moving "river in the sky" that transports significant ...

A stronger atmospheric river is set to hit Northern California on Monday and then hit L.A. County on Tuesday, aiding hopes of ...

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

The second peak of an ongoing atmospheric river storm arrived in Northern California Monday afternoon, prompting flood ...

The West Coast is in the middle of a long-lasting and potent atmospheric river event, which will bring days of heavy rain and ...

Here's the latest forecast for an upcoming winter storm that forecasters hope could finally lift Los Angeles County from the ...

The wet weather fueled by an atmospheric river represents an about-face after a dry January helped ignite fires that ...

You may have heard meteorologists using the phrases "atmospheric river" and "Pineapple Express" when talking about wet weather in California, but what do they really mean?

Forecasters believe there's little risk that the rains expected next week will trigger debris flows and mudslides in Southern ...

The second of three atmospheric rivers is battering the West, bringing prolific mountain snows and soaking rains in the lower elevations and driving the risk of flooding and avalanches. Yet another in ...

Monday will offer a brief break from a weekend of wet weather before another storm arrives in Northern California.