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.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another ...

Another atmospheric river is preparing to take aim at the Bay Area and Central California, bringing “impactful rain,” flash ...

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

The rainfall was so intense that in one dramatic example, a mudslide caused an entire house to slip down a bank into the ...

The second atmospheric river in a pair of storms will bring more rain and cooler temperatures to the Los Angeles area.

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 ...