National Weather Service United States Department of Commerce

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 >

 Today's Weather Trivia

Today's Date is Wednesday December 24, 2025...\n ON... Dec 24, 1983 The barometric pressure reached 31.42 inches at Miles City MT to establish a record for the U.S. It was the coldest Christmas Eve of record. More than 125 cities reported record low temperatures for the date, and all-time record lows for December were reported at seventeen cities, including Chicago with a low of 25 degrees below zero, and Havre MT with a reading of 50 below zero. IN 1955...The high of 86 degrees established the record high for the month of December at Dodge City.

 

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