Strengthening temperature inversion in our atmosphere means more gray days this week.

A powerful atmospheric river has drenched Washington state with nearly 5 trillion gallons of rain over the past week.

Some wildfires are so intense, they create their own weather—thunderstorms driven by heat that hurtle smoke as high as 10 ...

The evacuation area sits between the Puyallup and Carbon rivers, which have swelled due to an atmospheric river.

The Skagit River is predicted to crest at more than 47 feet near the town of Concrete, north of Seattle, 15 inches above the ...

An atmospheric river is tearing through Western Washington this week, dumping massive quantities of water and flooding some ...

Are you over the cold yet? Astronomical winter is more than a week away, and the subfreezing temperatures on most days have ...

The wording and definition were changed and refined a bit as atmospheric scientists at MIT studied these storms in the 1970s.

Here's how an atmospheric river, particularly the powerful Pineapple Express, works and why it can carry so much ...

As another atmospheric river inundates the Pacific Northwest, here are key words to know to understand flooding in WA.

An AccuWeather forecast says there will be further cold waves expanding from central Canada, Midwestern and eastern U.S. states because of a breakdown of the polar vortex. A polar vortex is a low ...

An atmospheric river is impacting the entire West Coast, fueling a warming trend in Idaho and bringing widespread rain to ...