Typically, they strike the U.S. West Coast from late fall through early ... powerful atmospheric river storm breaks on February 14, 2025 in the San Gabriel Mountains above Altadena, California.

A barrage of atmospheric river events that swept ... the season can extend into August. Conversely, in drier years, the snowpack melt season may peak and melt early, sometimes concluding in ...

Southern California's risk will come after. One of the changes we could see this year is an earlier start of offshore Santa Ana winds by late August or early September. "Typically, with the Santa ...

To many, atmospheric rivers are a West Coast phenomenon. But they’re also responsible for the devastating flooding that hit the Central United States in early ... river” can feel like a ...