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 >
| NWS Forecast for: Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 nm (PZZ271) Issued by: National Weather Service Portland, OR Last Update: 904 PM PST Wed Dec 24 2025 |  |
Tonight: S wind around 10 kt, backing to E late this evening, rising to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 5 to 7 ft. Wave detail: E 4 ft at 6 seconds, W 6 ft at 10 seconds and S 4 ft at 10 seconds. A slight chance of showers early this evening. A slight chance of rain after midnight. Thu: E wind 15 to 20 kt, veering to SE in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft, building to 8 to 11 ft in the afternoon. Wave detail: SE 6 ft at 6 seconds, NW 4 ft at 11 seconds and S 9 ft at 12 seconds. Rain. Thu Night: SE wind 15 to 20 kt with gusts up to 30 kt. Seas 13 to 16 ft, subsiding to 12 to 14 ft after midnight. Wave detail: SE 6 ft at 6 seconds, NW 4 ft at 11 seconds and S 14 ft at 12 seconds. Rain. Fri: NW wind 20 to 25 kt with gusts up to 30 kt. Seas 11 to 14 ft. Wave detail: NW 10 ft at 9 seconds and S 12 ft at 11 seconds. Showers. Fri Night: NW wind 20 to 25 kt with gusts up to 30 kt. Seas 10 to 13 ft. Wave detail: NW 10 ft at 9 seconds and S 6 ft at 10 seconds. Showers likely, mainly in the evening. Sat: NW wind 15 to 20 kt, easing to 5 to 10 kt in the afternoon. Seas 9 to 11 ft, subsiding to 7 to 10 ft in the afternoon. Wave detail: NW 4 ft at 7 seconds, NW 10 ft at 10 seconds and S 4 ft at 10 seconds. Sat Night: NW wind around 5 kt. Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight. Wave detail: S 2 ft at 9 seconds and NW 7 ft at 10 seconds. Sun: E wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: NE 2 ft at 4 seconds and NW 4 ft at 9 seconds. Sun Night: NE wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NE 2 ft at 4 seconds and NW 7 ft at 14 seconds. Mon: NE wind 5 to 10 kt. Seas around 7 ft. Wave detail: NE 2 ft at 4 seconds and W 7 ft at 13 seconds. Mon Night: NE wind 5 to 10 kt. Seas 7 to 8 ft. Wave detail: NE 2 ft at 4 seconds and W 8 ft at 14 seconds. | |
| Zone Forecast: Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 nm (PZZ271) | |
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