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 ...

Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another rainy storm system.

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 ...

Breakthrough materials that pull water from thin air could offer a sustainable solution to the West's worsening drought ...

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

An atmospheric river originating from near Hawaii known as a 'Pineapple Express,' will send copious amounts of moisture into a large portion of the Northwest and California into the new week, ...

An atmospheric river gathers moisture from the tropics and ... likely to be discharged in coming weeks 'He’s on a list': US veteran with conviction detained by ICE near Laveen home Arizona ...