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

Parts of northern California could see up to a foot of rain, but Phoenix will remain dry and warmer than usual.

A University of Hawaii at Mānoa study on the freezing of water droplets suspended in air sheds light on a key process in ...

At atmospheric river continues to slam portions of California Tuesday, with multiple inches of rain expected until Wednesday ...

The National Weather Service said Tuesday would see the strongest weather elements, with precipitation continuing to fall until Wednesday at 4 a.m. Atmospheric rivers are long bands of water ...

When the vapor reaches land, it ascends higher into the atmosphere, cooling enough to form water droplets and coming down as rain or snow in higher elevations. This can create extreme rain and ...