Historic rains filled Greater Los Angeles reservoirs and shallow aquifers nearly to capacity in 2023. But drought conditions persisted in deeper aquifers, according to a new analysis of seismic data ...

A major atmospheric river storm is barreling toward California, raising the specter of damaging landslides and flooding ...

El Niño and La Niña are climate phenomena that are generally associated with wetter and drier winter conditions in the ...

Both reservoirs have been steadily rising since November, after the start of California's water year in October. A series of ...

While the wet weather may bring an end to a devastating run of wildfires in the state, it could also cause flooding and other hazards.

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

The second of back-to-back atmospheric rivers hit Southern ... works One of the worst debris flows in modern California history occurred when a river of mud and rock flowed through Montecito ...

Then came this week’s atmospheric rivers ... risk never goes away.” California saw the consequences of that risk in 2023, when a levee along the Pajaro River that was decades overdue for ...

A major atmospheric river storm — strong enough ... string of powerful systems that hammered California from late December 2022 through mid-January 2023. This season has been far drier ...

A major atmospheric river storm — strong enough ... string of powerful systems that hammered California from late December 2022 through mid-January 2023. This season has been far drier ...