"The average atmospheric river carries an amount of water vapor roughly equivalent to the average flow of water at the mouth ...

Forecasters said a final round of rain, snow and high winds were targeting the Pacific Northwest and Northern California ...

A developing storm system forecast to swing off the Oregon and Washington coastline on Friday will add to the region's ...

A bomb cyclone occurs when a storm's pressure drops quickly, which intensifies the storm and ramps up wind gusts. Atmospheric ...

A bomb cyclone slammed the Pacific Northwest earlier this week, causing widespread power outages. Here's what it looked like ...

Starting Tuesday, the Pacific Northwest could get at least 6 inches of rain, with 20-plus inches possible in the mountains.

A high-end atmospheric river continued to pound Northern California on Friday on the tail end of a historic bomb cyclone.

The northwestern U.S. avoided getting hit by a second "bomb cyclone" on Thursday when the storm's fury came up short of ...

The Northwest is bracing for a strong storm system to move in this week, fueled by an atmospheric river​ and bomb cyclone. What do those terms mean?

Areas of northern California and the Pacific Northwest were drenched with intense rainfall and placed under warnings of ...

In northern California, flood and high wind watches were in effect, with up to 8 inches (20 centimeters) of rain predicted ...

While one atmospheric river is still pumping rain toward California, another storm is waiting in the wings.