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: Coastal waters from Cape Shoalwater WA to Cape Falcon OR out 10 nm (PZZ251) Issued by: National Weather Service Portland, OR Last Update: 342 AM PST Wed Dec 24 2025 | |
Today: E wind 15 to 20 kt with gusts up to 30 kt, becoming SE 20 to 25 kt with gusts up to 45 kt late this morning, then becoming SW 25 to 30 kt with gusts up to 40 kt this afternoon. Seas 7 to 9 ft, building to 10 to 14 ft this afternoon. Wave detail: SW 11 ft at 9 seconds, NW 8 ft at 10 seconds and SW 3 ft at 12 seconds. Rain until late afternoon, then a chance of rain late. Tonight: SE wind 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 9 to 12 ft, subsiding to 6 to 8 ft after midnight. Wave detail: SE 11 ft at 7 seconds, W 8 ft at 10 seconds and SW 5 ft at 12 seconds. A slight chance of rain in the evening, then a chance of rain after midnight. Thu: E wind 15 to 20 kt, becoming SE 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave detail: E 4 ft at 5 seconds, W 5 ft at 10 seconds and SW 4 ft at 12 seconds. Rain. Thu Night: S wind 10 to 15 kt with gusts up to 20 kt. Seas 7 to 10 ft. Wave detail: SE 4 ft at 5 seconds, SW 9 ft at 12 seconds and NW 5 ft at 12 seconds. Rain likely in the evening, then showers after midnight. Fri: NW wind 15 to 20 kt with gusts up to 25 kt. Seas 8 to 11 ft, building to 10 to 12 ft in the afternoon. Wave detail: NW 5 ft at 7 seconds, NW 9 ft at 10 seconds and SW 7 ft at 11 seconds. Showers. Fri Night: NW wind 15 to 20 kt with gusts up to 25 kt. Seas 9 to 11 ft, subsiding to 7 to 10 ft after midnight. Wave detail: NW 9 ft at 8 seconds and SW 6 ft at 11 seconds. A chance of showers in the evening. Sat: NW wind 5 to 10 kt. Seas 5 to 8 ft. Wave detail: NW 3 ft at 4 seconds, NW 6 ft at 9 seconds and SW 3 ft at 10 seconds. Sat Night: N wind around 5 kt, veering to E after midnight. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and S 2 ft at 10 seconds. Sun: NE wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: E 2 ft at 4 seconds and NW 5 ft at 8 seconds. Sun Night: NE wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NE 2 ft at 4 seconds and NW 6 ft at 13 seconds. | |
| Zone Forecast: Coastal waters from Cape Shoalwater WA to Cape Falcon OR out 10 nm (PZZ251) | |
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