The San Jacinto Tunnel is a 13-mile-long, concrete-lined water tunnel built between 1933 and 1939, carrying Colorado River ...

Marin County’s water supply could get a healthy boost during wet years if a pipeline project initiated this week by the Marin Municipal Water District ...

Coast Guard rescue missions failing after running into unexpected currents. Surprise atmospheric river storms flooding downtown San Francisco. Seafood contaminated by unseen algal blooms. California ...

The Argo program collects data vital to global weather forecasting and developing seasonal scale forecasts like El Niño and La Niña, for producing drought forecasts across the U.S., and for mapping ...

The past six months have proven to be a tale of two Californias when it comes to atmospheric river events. While Northern ...

The Argo program collects data vital to global weather forecasting and developing seasonal scale forecasts like El Niño and ...

Tuesday is Earth Day, and it is happening on a year the earth could use a day off. While lawsuits pour into courts over the Trump administration's cancelation of funds for climate-directed projects ...

California has run a pilot program since 2023 to try out so-called pop-up gear to find a solution to crabbers' woes.

Drought conditions in most of California will worsen air quality and increase airborne particulates like dust and pollen.

As atmospheric rivers pounded the U.S. West Coast last winter, scientists deployed increasingly advanced observing tools over ...

SACRAMENTO, Calif. - A barrage of atmospheric river events that swept across California during the winter and spring has left ...

New data compiled by the National Oceanic and Atmospheric Administration ... of the water year (that’s October 1, per the California Nevada River Forecast Center), the amount of California ...