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

A atmospheric river is barreling into Southern California tonight, bringing 1.5 to 6 inches of rain and posing significant ...

The Pineapple Express is a specific atmospheric river in the Pacific Ocean traveling from Hawaii to California. The darker ...

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 weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently burned areas.

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