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

An atmospheric river is a long, narrow band of moisture that oftentimes comes ahead of a storm system. It's a big source of moisture for the Western U.S. and, specifically, the Sierra Nevada and ...

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...

Parts of Pacific Coast Highway remained closed due to heavy flooding and mudslides in Southern California, according to state officials.

The atmospheric river is being driven by a low pressure system midway between Hawaii and the West Coast, as well as a secondary low-pressure system offshore of the Pacific Northwest. Both are ...

An atmospheric river gathers moisture from the tropics and moves it inland ... Those hoping for moisture in Arizona from ...

The remnants of an "atmospheric river" will move across Arizona Friday into the weekend, but most of the river's flow will ...

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

An atmospheric ... the range in western Nevada, resulting in localized wind damage, including around Reno. While AccuWeather meteorologists expect the worst of this atmospheric river to wane ...

An atmospheric river gathers moisture from the tropics and ... gardens healthy NAU researcher outlines new risks of warming, warns of faltering US science leadership Arizona geologist Daniel ...