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

Heavy rain is hitting the Bay Area and coastal areas this week as an atmospheric river moves through Northern California.

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

An atmospheric river is moving through the Lake Tahoe and Reno in the following days, but what does that mean?

Steady rain will spread along Northern California's coast, including areas like ... as an atmospheric river brings LOTS of moisture. As the system approaches we will continue to look at the ...

NOW, SOME OF THOSE SYSTEMS WILL TAP INTO SOME OF THAT ATMOSPHERIC RIVER MOISTURE ... COULD BE SOME SNOW SHOWERS ON FRIDAY. SATURDAY IT LOOKS LIKE THE SNOW LEVEL GOES ABOVE LAKE LEVEL AND ABOVE ...

An atmospheric ... River, about 176,000 tons per second. Taken together, ARs are responsible for 90% of the moisture tapped from the tropics into higher latitudes globally. They can be rated like ...