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

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

A much wetter stretch is ahead from California to Washington as multiple systems crash into the Pacific Coast. Here’s how much rain and snow is on the way and when.

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

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

Malibu’s Pacific Coast Highway, which just reopened after last month’s devastating Palisades Fire, is closing again Tuesday ...

An atmospheric river was pummeling Southern ... of Transportation said it was shuttering part of the Pacific Coast Highway, a major north-south state route, due to heavy flooding and mudslides.

While most look for ways to avoid the steady rain falling from atmospheric rivers ... it feeds into the Feather River, is also affected by the Middle and South Yuba rivers, which feed into ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, while thunderstorms added ...

Hang onto your umbrellas: An “impressive” atmospheric river is set to deliver ... A plume of moisture from the South Pacific, near the vicinity of Hawaii, has been producing steady ...