The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into ...

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

It's a type of atmospheric river that forms a long ... responsible for as much as 65% of the West's extreme rain and snow events, a 2017 study said. AccuWeather warned of possible flooding ...

After weeks of dry weather, an atmospheric river event begins Friday, kicking off a dramatic flip in the forecast for Lake ...

This second event comes on the heels of a "Pineapple Express" atmospheric river event over the weekend that has pushed rainfall totals to more than 3 inches across the hills north of the Bay Area ...

An NWS forecast issued on Tuesday: "A prolonged atmospheric river event will continue to bring moderate to heavy rain with a risk for flooding to northern and central California with heavy ...

Another atmospheric river-driven storm will impact Northern California and the Pacific Northwest starting Thursday morning. That event is forecast to be somewhat less impactful than the high winds and ...

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 ...

Instead of major fires the Golden State will be delt with major rainfall with precipitation amounts that could reach over half a foot over the next week.

While the wet weather may bring an end to a devastating run of wildfires in the state, it could also cause flooding and other ...