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

Two atmospheric rivers dumped heavy rain from the valley to the Sierra resulting in rises on area waterways. Here's how the ...

Chain controls and flooded roads impacted drivers Tuesday as significant wet weather rolled into Northern California. Heavy ...

Chain controls, interstate closures and flooded roads were an obstacle for drivers Wednesday morning as significant wet ...

The National Weather Service placed much of Sacramento under a flood watch an atmospheric river-fueled rain storm continued to pour rain in the region. The Sacramento area could see periods of ...

Two atmospheric rivers have ended Northern California's dry spell, bringing heavy rains and setting records in San Francisco.

Heavy precipitation is falling mostly in mountain areas. A flood watch in also in effect for the coast of central California, ...

Both storms will be carrying moisture from an atmospheric river that stretches from the Hawaiian Islands to Northern California. The Sacramento Valley could see up to two inches of rain by Monday.

There is now a 30% chance of intense rain between Feb. 12 and 15 in Los Angeles, Ventura, Santa Barbara and San Luis Obispo ...

The second peak of an ongoing atmospheric river storm arrived in Northern California Monday afternoon, prompting flood ...

Here's the latest forecast for an upcoming winter storm that forecasters hope could finally lift Los Angeles County from the ...

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