Areas scarred by the Eaton Fire are at “high to very high risk” of debris flows this week. How do they happen? What is being done to prepare for storms?

Reflecting intensifying wildfires and updated science, new state maps designate more than 2.3 million acres of local land in ...

Several cities in Southern California are expecting heavy bouts of rain Wednesday through Friday, with the flash flood risk increased in burned areas. In January, several massive wildfires tore ...

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

A system-wide evaluation of California’s marine reserve network finds conservation benefits across multiple ecosystems.

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

In the wake of the Los Angeles fires, President Trump blamed California for not sending enough water to help with ...

Hydrojet propulsion, ultrasonic sensors, and thermal cameras enable seamless land-to-water transitions in this amphibious marvel. The interior of CROSSER is fully modular, accommodating up to four ...

Built in the 1950s, the dam has obstructed the upriver migration of fish, including chinook, whose numbers are a fraction of ...

As flooding continues to affect parts of Tehama County, an emergency shelter has been opened to assist those in need of ...

TEHAMA COUNTY, Calif. - Tehama County has issued over 20 evacuation warnings in response to rising flood risks.

An agreement between four Native American Tribes, two states, and the U.S. government unlocks investments that can restore salmon runs and meet growing energy demands in the Snake River Basin—and will ...