"An atmospheric river will surge onshore Wednesday/Thursday bringing heavy rain and snow to the Pacific Coast," the National Weather Service says.

At a week out, specific details are likely to change but Northern Californians should keep a close eye on this forecast.

Extreme weather will affect many regions of the country this week. Here are the places that will be hardest hit.

What is an atmospheric river? Meteorologist Derek Lee breaks down the weather phenomenon, which came to the forefront in 2021 ...

During a previous atmospheric river event, cities in Washington reported record flooding, resulting in necessary evacuations and highway closures. Such incidents illustrate the severity of threats ...

The storm that pummeled California this week was fueled by an atmospheric river, a plume of moisture that extended over the Pacific to near Hawaii. Heavy rain and gusty winds that began hitting ...

In the Pacific Northwest, it’s been a messy few days. Surges of wind and moisture battered local ski resorts as an atmospheric river passed through. Fickle freezing levels presented the risk of rain, ...

Some local experts say discourse has gone too far.

The Bay Area is in for another weather whiplash, with some cities likely to break record high temperatures for the first time ...

The final weekend of winter will be on the stormy side with areas of snow, rain, wind and even a few thunderstorms.

In a state with harsh weather and many industries that rely on accurate weather data and forecasts, the Trump ...