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

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.

The wet weather fueled by an atmospheric river represents an about-face after a dry January helped ignite fires that devastated California.

This story was updated to correct spelling in headline. An atmospheric phenomenon called a Pineapple Express is expected to bring heavy rains and snowfall to California and the Northwest this week.

The first of two “Pineapple Express” storms arrived in Southern California early Wednesday after delivering a stronger-than-expected pounding to Northern California, breaking rainfall records ...

The Pineapple Express, already evident on weather maps this weekend, will bring a variety of hazards to the West over the next few days, such as major flooding, avalanches, strong winds and travel ...