What Exactly Is an Atmospheric River? Think of atmospheric rivers as narrow regions in the atmosphere that transport water ...

The second peak of an ongoing atmospheric river storm arrived in Northern California Monday afternoon, prompting flood watches and a winter storm warning up in the Sierra.

California’s snowpack has fallen sharply after an unusually dry January, creating new uncertainty for area farmers who rely on Sierra runoff to irrigate thousands of acres of cropland.

While much of the eastern U.S. has been frozen by rounds of Arctic air and snow, the West has experienced weeks of ...

The recent winter storm did not alleviate the "snow drought" plaguing Colorado, Utah and other western states. Snowpack ...

Boat rentals and personal vessel launching are now open! Please note that due to the 30-day Quagga restrictions, boats must ...

As Super Bowl Sunday approaches, all eyes aren’t just on the Seahawks and Patriots, but the weather forecast as well. Here’s ...

While winter weather blanketed much of the United States in snow last week, mountains in the western part of the country are ...

Satellite imagery reveals how man-made structures, like breakwaters, accumulate sediment and enhance beaches.

A 150‑vehicle pileup in dense tule fog shut Highway 99 near Earlimart, California, on Jan. 31, sending 10 to hospitals and ...

A north breeze is helping to dry things out and warm temps into the upper 50s to low 60s today. Fog will re-form overnight, ...

British Columbia limits data centers and crypto mining to prioritize jobs and affordability while investing $32B in clean ...