A group of scientists from Southern California recently came to the Bay Area to send up a series of weather balloons to help ...

The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into ...

Days after an atmospheric river brought record-setting rainfall to California, the state is in the crosshairs of another rainy storm system.

Rain fell across northern California on Saturday and could continue for days with an atmospheric river hanging over the ...

Atmospheric rivers, also described as "rivers in the sky," cause more than 80 percent of all flooding damage across the West ...

U.S. Senators Alex Padilla (D-Calif.) and Lisa Murkowski (R-Alaska) announced bipartisan legislation that will reduce flood ...

Only if it falls as snow. A 2016 study by NASA, NOAA, UCLA, and Scripps Institution of Oceanography found that atmospheric river events are 2.5 times more likely to produce "rain over snow" events ...