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 >

December 2022 will go down in the books as having been cold and snowy, thanks in large part to a couple of potent winter storm systems in the middle and later parts of the month. Find all the details for select locations in the graphics below. Some of the highlights include: Pierre recorded their 4th wettest and 3rd snowiest December on record, Mobridge recorded their 5th wettest December on record, Sisseton recorded their 5th wettest and 2nd snowiest December on record, Kennebec recorded their 2nd wettest and 3rd snowiest December on record, Timber Lake recorded their 4th wettest and 3rd snowiest December on record, and Wheaton recorded their 2nd wettest December on record.

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

December 2022 In Review