Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Last Update: 130 AM PST Thu Dec 11 2025

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Portland, OR Local Forecast Office

16NM SSW Newport OR

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM PST THIS AFTERNOON...

Today
S wind 10 to 15 kt with gusts up to 20 kt, easing to around 5 kt. Seas 8 to 9 ft. Wave detail: S 3 ft at 4 seconds and W 9 ft at 15 seconds. A chance of showers until late afternoon, then a slight chance of showers late. Patchy dense fog late.
Tonight
SE wind around 5 kt, backing to NE after midnight. Seas 7 to 8 ft. Wave detail: W 8 ft at 15 seconds. Patchy dense fog.
Fri
NE wind around 5 kt. Seas 5 to 7 ft. Wave detail: W 7 ft at 13 seconds. Patchy dense fog in the morning. A slight chance of showers.
Fri Night
NE wind around 5 kt. Seas 4 to 5 ft. Wave detail: W 5 ft at 12 seconds. Patchy dense fog after midnight.
Sat
E wind around 5 kt, veering to S in the afternoon. Seas 4 to 5 ft. Wave detail: S 2 ft at 4 seconds and W 5 ft at 12 seconds.
Sat Night
S wind 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. Wave detail: S 3 ft at 5 seconds and W 7 ft at 12 seconds. A chance of rain in the evening, then rain likely after midnight.
Sun
S wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 5 to 8 ft. Wave detail: S 3 ft at 6 seconds and SW 7 ft at 11 seconds. Rain likely, mainly in the morning.
Sun Night
S wind 10 to 15 kt, rising to 20 to 25 kt after midnight. Seas 5 to 7 ft, building to 7 to 10 ft after midnight. Wave detail: S 4 ft at 7 seconds and SW 5 ft at 12 seconds. A chance of rain in the evening, then rain after midnight.
Mon
S wind 25 to 35 kt, veering to SW 30 to 40 kt in the afternoon. Seas 12 to 16 ft. Wave detail: S 8 ft at 11 seconds and W 9 ft at 14 seconds. Rain.
Mon Night
SW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 11 to 13 ft, subsiding to 9 to 13 ft after midnight. Wave detail: SW 7 ft at 9 seconds and W 10 ft at 12 seconds. Rain.



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130 AM PST Thu Dec 11 2025
 
 

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