Thousands of acres have been burned in Los Angeles, and the burn scars could flood easily should a moisture-laden storm hit.

Cooler, wet weather is forecast to bring moisture to the parched landscape and reduce the fire threat. But heavy rainfall could also trigger flash floods in burn scars.

In total, the states affected by the atmospheric river are Washington, Oregon, California, Idaho, western Montana, western Wyoming, northern Nevada and northern Utah. Impacts mostly consist of ...

The state is seeing a sharp water divide this year, with lots of rain in the north while the south has stayed dry. A ...

Forecasters warn of dangerous conditions as another powerful atmospheric river takes aim at California. While these storms are dreaded for the damage they can cause, they are also essential to the ...

(THE CONVERSATION) Atmospheric rivers – those long, narrow bands of water vapor in the sky that bring heavy rain and storms to the U.S. West Coast and many other regions – are shifting toward higher ...

Two men row a boat in front of a flooded RV park after an extreme atmospheric river event brought flooding to Sonoma County in California in November 2024. An atmospheric river is a long plume of ...

California’s first snowpack measurement of 2025 on Thursday showed promising figures for the water year, complemented by high storage levels in some of the state’s most critical reservoirs. However, ...

A strong atmospheric river was making landfall in the Pacific ... strong winds and potentially dangerous surf in areas from Northern California to British Columbia. Atmospheric rivers are long ...

Global warming changed the behavior of the jet stream, and a new pattern is now clear: sapping moisture from the West Coast ...