WHAT IS AN ATMOSPHERIC RIVER? It starts when a large amount of water vapor from tropical oceans is carried by a jet stream ...

The Columbia River Gorge is essentially Mother Nature showing off, and Multnomah Falls is her grand finale. It’s the tallest waterfall in Oregon, and the second-tallest year-round waterfall in the ...

A new study reveals how an atmospheric river led to more devastation after two earthquakes hit Türkiye and Syria, ...

Unexpected relief for the Pacific Northwest's drought has come from short-term cooler, wetter conditions, which also helped ...

“We found there were 268 landslides and debris flows that occurred during atmospheric river-type storms in the region that ...

The Northwest River Forecast Center is ... which track atmospheric conditions. Pacific County is served by the NWS’s Portland ...

As an atmospheric river surged into the Pacific Northwest in late February 2025, it carried not just warm tropical moisture—but ...

Microplastics, which the National Oceanic and Atmospheric Administration defines as being smaller than five millimeters long, ...

The Oregon Department of State Lands keeps a map of the vital waterways where the state's most iconic and vulnerable fish ...

PORTLAND, Ore. (KOIN) — The Oregon Department of Emergency Management is asking victims of the March floods to complete a survey, which will help ensure that no damages are missed in the state ...

COQUITLAM, B.C. - An atmospheric river weather system drenched parts of southern British Columbia over the weekend, dumping more than 100 millimetres of rain in some locations and setting off a ...

An atmospheric river is expected to bring ample rainfall to the south B.C. coast this weekend. Environment Canada meteorologist Lisa Ervin says a parade of storms will target the south coast of B ...