Places like California, Oregon, Washington, Idaho, Utah and Nevada are (somewhat) used to this sort of phenomenon. You can ...

In late January and early February, two atmospheric rivers hit the West Coast. They dumped large amounts of rain over Southern California, causing flooding and mudslides and killing at least nine ...

An atmospheric river is a long, narrow band of moisture that oftentimes comes ahead of a storm system. It's a big source of moisture for the Western U.S. and, specifically, the Sierra Nevada and ...

While atmospheric rivers share a similar origin – moisture supply from the tropics ... can be explained as a chain of interconnected processes. Conversely, during El Niño conditions ...

Heavy rain is hitting the Bay Area and coastal areas this week as an atmospheric river moves through Northern California.

If this late-week atmospheric river pattern shifts south, Sacramento's rain totals will increase. The same rule applies to snow chances around Lake Tahoe. If the northward trend continues, many of ...

Weather, climate and hydrometeorology forecasts require accurate surface–atmosphere coupled modeling. This requires the use ...

An atmospheric river is slamming portions of California, with multiple inches of rain expected to drench the area until the storm runs out of moisture Wednesday morning, forecasters say.