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

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

The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into ...

After weeks of dry weather, an atmospheric river event begins Friday, kicking off a dramatic flip in the forecast for Lake ...

The storm brought heavy rain and high-elevation snowfall to Northern California over the weekend, and a similar one is ...

Instead of major fires the Golden State will be delt with major rainfall with precipitation amounts that could reach over ...

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

A Pineapple Express is expected to produce heavy amounts of rain and snow in Northern California over the next week.

This second event comes on the heels of a "Pineapple Express" atmospheric river event over the weekend that has pushed rainfall totals to more than 3 inches across the hills north of the Bay Area ...

Another storm will impact Northern California starting Thursday morning. That event is forecast to be somewhat less impactful ...

Happy weekend, Utah! We have a dry set up in southern Utah for the weekend, while a moisture-rich storm targets the northern half of the state.

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