Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Dec 26, 2025 at 12:00:13 am PST

Watches, Warnings & Advisories

National Weather Service Seattle/Tacoma, WA

Zoom Out

Winter Weather Advisory

Dense Fog Advisory

Freezing Fog Advisory

Colder and Snow

Expect travel conditions to be impacted for Friday and Saturday of this holiday weekend. Snow will primarily affect the mountain passes and northern ID, though colder temps and plummeting snow levels may lead to slick conditions into the valleys Saturday morning as well.