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 >

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Passionate about the weather, always taking rainfall measurements, and want to help extend our climate data for Watertown? We could really use your help. Records at Watertown date back to 1893.

Cooperative Observer Program overview: https://www.weather.gov/coop/overview

Cooperative Observer Program Sites: https://www.weather.gov/coop/

For more information, please contact us: timothy.kearns@noaa.gov or 605-225-0519

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

Watertown area Cooperative Observer Needed!