After a brief respite of quiet weather, another round of "atmospheric river" storms is forecast to slam into California over the next few days, dumping heavy rain and snow and raising fears of ...

Extreme California storm causes deadly flooding 02:38. Another "atmospheric river" is bringing widespread flooding to parts of California this week — and it's not the first time the strong ...

Apparently, atmospheric rivers also occur in the eastern US, unleashing a river of moisture like what we will see this week. The reason East Coast atmospheric rivers aren’t talked about much isn ...

After an extraordinarily dry start to the year, three atmospheric river storms are expected to hit California over the next week — with one of them potentially bringing much-needed moisture to ...

A powerful storm known as an atmospheric river swept over California on Thursday, soaking the state with rain and leaving a trail of damage that has become familiar to residents in recent years ...

The atmospheric river coming ashore in Northern California this weekend has been deemed a 5 — or “exceptional,” which is as strong as they get — because it exceeds a threshold of water ...

An atmospheric river is a plume of moisture, or water vapor, that moves from the tropics and is dumped over a region as heavy rain or snow. Atmospheric rivers are narrow bands that tend to occur ...

Some of Earth’s largest rivers are in the sky, and they can produce powerful storms, like the ones that have drenched northern California.

Based on the storm’s intensity and duration, the weather event is given an overall category from 1 to 5. Under this system, Los Angeles’ most recent storm would be a Category 2 because it had ...

During a series of strong atmospheric river storms that hit California in 2023, the dropsondes helped advance some forecasts of heavy precipitation by roughly 12 percent, ...

An aerial view of the Los Angeles River swollen by runoff from a long-duration atmospheric river storm in February of 2024 in Los Angeles, California. Mario Tama/Getty Images.