The storm will usher in warm temperatures, which will contribute to the flooding risk from heavy rain as snow melts.

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

As a series of Pacific storms continues in the northwestern United States and in southwestern Canada, the biggest storm of the bunch will include an atmospheric river in portions of Washington and ...

Forecasters are getting an in-depth look at the next storm that's about to wallop the West Coast this weekend, thanks to the efforts of the Hurricane Hunters.

Oregon's snowpack jumped to 144% of normal by Thursday, the best in the western US. However, a warm atmospheric river will hit the state this weekend.

The 2025 water year took a big step forward in February after atmospheric rivers delivered rain and snow to California.

An atmospheric river of moisture is expected to enter portions of western Montana on Saturday night and linger for several ...

There's a place on Earth where lightning flashes almost every night—until, one day, it stopped. What causes the Catatumbo ...

Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land, they can cause heavy rains and snow. Here’s a look at the phenomenon: ...

National Weather Service forecasts suggest that through the weekend, about 1 to 3 inches of rain will fall around the coast, ...

Rescuers from several agencies set out during an atmospheric river weather condition in Monterey County after the hiker sent ...