What is an atmospheric river? Why the Bay Area is under a flood watch

Another atmospheric river is forecast to drench the Bay Area beginning Tuesday evening and lasting through Christmas, bringing heavy rain and triggering a flood watch. As the storm intensifies, plumes of moisture from a Pacific cyclone are pushing toward the region, raising the threat of damaging winds.

Bay Area storm to intensify into powerful bomb cyclone

The Bay Area saw heavy rain over the weekend, with showers lingering into early this week. However, a bomb cyclone developing in the Pacific now brings the threat of damaging winds to the region.

North Bay prepares for a Christmas week storm swarm

North Bay first responders are no strangers to atmospheric rivers, and the experience has left them well-equipped to handle the swarm of storms heading to the Bay Area for the holiday week.

North Bay preps for atmospheric river

Wednesday was the calm before the storm in parts of the Bay Area, including at the Golden Gate Bridge, where by night, winds whipped in the air as the atmospheric river approached.

Timeline: Atmospheric river approaches Bay Area

An atmospheric river is headed for the Bay Area, bringing heavy rainfall and strong winds beginning late Wednesday and lasting through early Friday. The storm system is expected to deepen as it slides down the West Coast.