Using the space telescope, a team of astronomers has detected with unprecedented precision two tails of helium escaping from ...

They are responsible for producing heavy rain and snow, especially when pushed up against mountain ranges like the Cascades and Sierra Nevada. A well-known type of atmospheric river is called a ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. In recent years, "atmospheric river" ...

An atmospheric river is a weather feature that can be beneficial and crucial, but can also be a damaging event - particularly for those near the West Coast of the United States. The definition: An ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Qian Cao, University of California, San Diego (THE CONVERSATION) Along the U.S. West ...

National Weather Service meteorologists are monitoring a phenomenon developing over the Pacific Ocean that will slam the West Coast by the weekend. Portions of California and the Pacific Northwest are ...

It’s been relatively dry in Seattle and western Washington for the first half of this week, but dry periods are about to become few and far between, with several atmospheric rivers on their way to ...

Most people hear “atmospheric river” and imagine flooded roads. That’s only half the story. Atmospheric rivers are moving weather systems in the sky that contain large amounts of moisture. These ...

A sign for a Christmas tree farm is pictured as flood waters from the Snohomish River cover Marsh Road off State Route 9 in Snohomish, Washington, on December 11, 2025. Tens of thousands of people ...

An atmospheric river brought heavy rain to western Washington late Friday afternoon — the eve of Halloween. “The main threat with this system is the heavy rain, though wind gusts in the 20–35 mph ...

SAN DIEGO COUNTY, Calif. — A strong winter storm is bringing heavy rain and strong winds at times to Southern California from Wednesday to Friday through an atmospheric river known as the 'Pineapple ...