Snow and ice in whiteout conditions contributed to a pileup of as many as 30 cars on a major highway connecting Oregon and ...

Snow and ice in whiteout conditions contributed to a pileup of more than 100 cars on a major highway connecting Oregon and Idaho, reportedly injuring several people, as a winter storm descended on the ...

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

Many atmospheric river events are weak. But the powerful ones can transport extraordinary amounts of moisture. Studies have ...

Parts of Pacific Coast Highway remained closed due to heavy flooding and mudslides in Southern California, according to state ...

Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring ...

Despite El Niño and La Niña’s pervasive influence on global climate, atmospheric rivers don’t appear to follow their lead.

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

Evacuation orders were still in effect on Wednesday afternoon for the low-lying areas of the Russian River for 34 miles all the way from Healdsburg to Jenner on the Pacific. People under the 36 ...

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