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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Last Map Update: Fri, Dec 26, 2025 at 5:42:12 am EST

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There are no watches, warnings, or advisories at this time.

Christmas Weekend Forecast

Island Chain

Marine Winds

Wave Heights

Christmas Weekend Forecast
The best way to describe it is nice
Sunny, light breezes, and near nil rain chances across the Keys
Weak high pressure over the eastern Gulf will keep weather quiet for the weekend. While a touch warmer than climatological norms, it will be nicer and drier than what we've seen through much of December.

TODAY...Mostly sunny. Highs in the upper 70s. North to northeast winds near 10 mph, decreasing to near 5 mph.

Today: Gentle to moderate N breezes, becoming light to gentle NE breezes
Seas 1 to 2 ft, Except 2 to 3 in the FL Straits
Nearshore waters a light to moderate chop, becoming smooth to a light chop
Isolated showers in the FL Straits