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

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

An atmospheric river event is forecast to rainfall, snow, and the potential for flooding to parts of California this week.

Downtown San Francisco was drier, but it still had a big day. The area recorded 2.53 inches on Tuesday, its highest daily ...

Impact from a moisture-laden storm is expected to persist in the San Francisco Bay Area through Friday, with more rain likely ...

The first storm from the tail end of an atmospheric river brought light to moderate rain throughout the Los Angeles area.

Cooler, cloudier conditions and periods of light rain are forecast in San Diego County through Friday night as a weakening ...

The biggest storm of the winter, packing a firehose of rain across much of California, will trigger flooding, mudslides and road closures that may put lives and property at risk during the latter part ...

The latest NWS forecast says an atmospheric river remains on track to deliver as much as 2 inches of rain in Fresno on ...

In the 1990s, Lockheed envisioned an aircraft so massive it needed Airbus and Boeing to build it. Explore the story of the ...

Rainy conditions are expected to begin sometime Wednesday, and the National Weather Service has already issued a flash flood ...

Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.