When he was 14, Cappucci became the youngest-ever presenter at the American Meteorological Society, where he The jet stream is like a river of west-to-east winds in the upper atmosphere.

The storm brought heavy rain and high-elevation snowfall to Northern California over the weekend, and a similar one is ...

Several feet of snow are expected to fall across the Sierra in the coming days as an atmospheric river moves across Northern ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, with an increasing chance ...

An atmospheric river is pounding Northern California with heavy rain and the threat of flooding before heading to Southern California.

An atmospheric river is a weather feature that can be beneficial and crucial, but can also be a damaging event - particularly for those near the West Coast of the United States. The definition ...

Numerous weather alerts are in place across Northern California as an atmospheric river is set to bring excessive moisture to the region this weekend. They include a winter storm warning ...

An atmospheric river is expected to bring three major storms with significant rain, snow and wind to Northern Nevada for the next several days. But what is an atmospheric river? Here's a look at ...

This atmospheric river plume of moisture is known as the "Pineapple Express" because of its connection to Hawaii. The second system is now approaching the West Coast. Precipitation will become ...

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 ...

An atmospheric river brought heavy rain and mountain snow to parts of California and the Pacific Northwest on Friday, January 31. Satellite imagery released by the Cooperative Institute for Research ...

A prolonged atmospheric river event is set to continue delivering moderate to heavy rain across the Pacific Northwest, with the Portland area bracing for a cold week ahead. Showers are expected to ...