Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...

An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Researchers using the Hubble Space Telescope have discovered water vapor in the atmosphere of planet K2-18b, located about ...

Weather balloons and “hurricane hunter” planes aid the science of understanding California’s atmospheric rivers.

Both reservoirs have been steadily rising since November, after the start of California's water year in October. A series of ...

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...

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