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 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 ...

What is a Pineapple Express? It's a type of atmospheric river that forms a long, narrow tract in the Earth’s atmosphere. This jet stream gathers moisture from the tropics near the equator and ...

A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

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

One atmospheric river is already affecting the West right ... Kauai and Oahu islands as a spattering of intense storms affected the western half of the archipelago. There were even tornadic ...

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, ...