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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 >

The 1-800-247-0212 phone line into the National Weather Service Office in Bismarck, ND, is out of service. We expect the line to be returned to service sometime Wednesday afternoon, May 19, 2021. If you need to contact the NWS call 1-701-223-4582.