The storm brought heavy rain and high-elevation snowfall to Northern California over the weekend, and a similar one is ...

Atmospheric river to target the Western U.S. this week Places like California, Oregon, Washington, Idaho, Utah and Nevada are (somewhat) used to this sort of phenomenon. You can see how this week ...

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 ...