Places like California, Oregon, Washington, Idaho, Utah and Nevada are (somewhat) used to this sort of phenomenon. You can ...

An atmospheric river is essentially a narrow band of Pacific moisture, water vapor, that is funneled into a long narrow flow. These rivers transport tropical moisture to higher latitudes ...

A persistent trough of low pressure has parked itself along the Pacific Northwest. As it spins counterclockwise it is pumping ...

It's not only a California soaking, but also lowland snowfall for the Pacific Northwest. Here's our latest forecast.

The Nashville May 2010 flood was found to have had a contribution from an atmospheric river which began in the eastern tropical Pacific basin. - An AR even chipped its moisture into the infamous ...

You may have heard meteorologists using the phrases "atmospheric river" and "Pineapple Express" when talking about wet weather in California, but what do they really mean?

Atmospheric river storms are long plumes of water vapor that can pour over from the Pacific Ocean into California. They carry so much water, they’re said to be like a river in the sky.

An atmospheric river brought heavy rain and mountain snow to parts of California and the Pacific Northwest on Friday, January 31. Satellite imagery released by the Cooperative Institute for Research ...

"The Pineapple Express is an atmospheric river which has its origin in the tropical Pacific," said AccuWeather Senior Meteorologist Alex Sosnowski. Since the pineapple express starts thousands of ...