A series of atmospheric river events during the winter and spring have caused reservoirs to swell to more than 118% than is ...

The above-average rainfall totals come in the wake of atmospheric river systems that have dumped rain on Sacramento since the ...

Atmospheric rivers can bring much needed rain to drought-struck places, but may be dangerous when they are strong and last long.

Map of Sierra Nevada in California showing how an atmospheric river develops. Most atmospheric rivers are weak and do not cause damage. In fact, they can provide much-needed rain or snow.

When a bomb cyclone meets an atmospheric river, the result is like an out-of-control fire hose A powerful storm hitting the West Coast combines these weather phenomena for a wet week in many areas.