Atmospheric rivers are long, narrow regions of water vapor in the atmosphere, like a river in the sky. These systems gather ...

Have you ever wondered what it feels like to stand under a sky that suddenly turns into a river? For millions living along ...

Atmospheric rivers, while vital for replenishing water on the U.S. West Coast, are also the leading cause of floods though ...

Melting snow from California's Sierra Nevada is filling reservoirs. But dry conditions have shrunk the flow of the Colorado River, straining a vital supply for Southern California.

Researchers analyzed more than 43,000 atmospheric river storms across 122 watersheds on the West Coast between 1980 and 2023.

Atmospheric rivers are responsible for most flooding on the West Coast of the U.S., but also bring much needed moisture to the region. The size of ...

Eight people died when a surprise storm caused dangerous waves on the lake along the California-Nevada border, upending boats ...

A study by UC San Diego researchers reveals that pollutants found in the sewage-laden Tijuana River are ending up in the air near the U.S.-Mexico border in San Diego County.

EVERETT — Anna Kagley was working at a federal lab in Seattle in 1989 when the Exxon Valdez tanker spilled some 11 million ...

The storm has a 10% chance of developing into a tropical cyclone by Thursday, approaching the coast of Oaxaca and Chiapas ...

Learn about the extreme weather events that tested Santa Monica's resilience, from a powerful February storm to a sudden May ...

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater — including sewage, industrial waste and runoff — into the Pacific Ocean ...