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.

Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

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.

Call it an atmospheric river, a Pineapple Express or just weather, but some parts of California and the U.S. Northwest are being slammed by up to foot of rain before the storm runs out of moisture ...

Light rain continued to fall across Southern California on Wednesday afternoon as the first in a series of Pacific storm systems moved through the region. Rain generally ...

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 ...