The term “atmospheric river” was coined in 1994 and has since quickly gained popularity. But what does it really mean?

After months of extremely dry conditions in Southern California, an atmospheric river storm delivered much-needed rain to a ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, triggering evacuation ...

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 ...

The NWS says excessive rainfall is expected to cause flooding along the Russian River, affecting roadways and agricultural ...

The Bay Area saw significant storm impacts Tuesday as an atmospheric river brought heavy rain, urban and river flooding, and ...

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

After an atmospheric river doused the North Bay Tuesday, forecasters say more rain will return to the region Thursday and ...

The first in what’s expected to be a series of three atmospheric river storms has arrived in California. Forecasters are hopeful the winter storms might finally lift Los Angeles County from the ...

An atmospheric river is a weather feature that can be beneficial and crucial, but can also be a damaging event - particularly for those near the West Coast of the United States. The definition ...