National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

For More Weather Information:

Portland, OR Local Forecast Office

7NM N Cape Lookout OR

Marine Point Forecast

[NOTICE]

    • Tuesday

      Tuesday:ENE wind 7 to 12 kt becoming SSW 18 to 23 kt in the afternoon. Winds could gust as high as 30 kt. Rain. W swell 11 to 13 ft at 12 seconds. Wind waves 1 ft building to 4 ft.

      ⇑SSW 23kt
      12-13ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:SSW wind 31 to 34 kt, with gusts as high as 40 kt. Rain. WNW swell 11 ft at 12 seconds. Wind waves 7 to 8 ft.

      SSW 34kt
      11-13ft

      Gale Warning
      Gale Warning

    • Wednesday

      Wednesday:SSW wind 27 to 30 kt, with gusts as high as 37 kt. Rain. W swell 9 ft at 11 seconds. Wind waves 6 to 7 ft.

      SSW 30kt
      11ft

      Gale Warning
      Gale Warning

    • Wednesday Night

      Wednesday Night:SSW wind 22 to 25 kt, with gusts as high as 31 kt. Rain. W swell 11 ft. Wind waves 4 to 5 ft.

      SSW 25kt
      11-12ft

      Gale Warning
      Gale Warning

    • Thursday

      Thursday:SSW wind 10 to 16 kt. Rain. W swell 9 to 10 ft. Wind waves 2 to 3 ft.

      SSW 16kt
      9-10ft

    • Thursday Night

      Thursday Night:S wind around 6 kt. Rain likely, mainly before 10pm. W swell 7 to 8 ft. Wind waves around 1 ft.

      S 6kt
      7-8ft

    • Friday

      Friday:Variable winds 5 kt or less. A chance of rain. W swell 6 to 7 ft. Wind waves around 1 ft.

      Light Wind
      6-7ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. A slight chance of rain. W swell 6 ft. Wind waves around 1 ft.

      Light Wind
      6ft

    • Saturday

      Saturday:SE wind 6 to 10 kt becoming S in the afternoon. Rain likely. W swell 5 ft. Wind waves 1 to 2 ft.

      S 10kt
      5ft


Associated Zone Forecast which includes this point

Last Update: 2:46 am PST Dec 9, 2025
Forecast Valid: 3am PST Dec 9, 2025-6pm PST Dec 15, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

Tuesday
ENE wind 7 to 12 kt becoming SSW 18 to 23 kt in the afternoon. Winds could gust as high as 30 kt. Rain. W swell 11 to 13 ft at 12 seconds. Wind waves 1 ft building to 4 ft.
Tuesday Night
SSW wind 31 to 34 kt, with gusts as high as 40 kt. Rain. WNW swell 11 ft at 12 seconds. Wind waves 7 to 8 ft.
Wednesday
SSW wind 27 to 30 kt, with gusts as high as 37 kt. Rain. W swell 9 ft at 11 seconds. Wind waves 6 to 7 ft.
Wednesday Night
SSW wind 22 to 25 kt, with gusts as high as 31 kt. Rain. W swell 11 ft. Wind waves 4 to 5 ft.
Thursday
SSW wind 10 to 16 kt. Rain. W swell 9 to 10 ft. Wind waves 2 to 3 ft.
Thursday Night
S wind around 6 kt. Rain likely, mainly before 10pm. W swell 7 to 8 ft. Wind waves around 1 ft.
Friday
Variable winds 5 kt or less. A chance of rain. W swell 6 to 7 ft. Wind waves around 1 ft.
Friday Night
Variable winds 5 kt or less. A slight chance of rain. W swell 6 ft. Wind waves around 1 ft.
Saturday
SE wind 6 to 10 kt becoming S in the afternoon. Rain likely. W swell 5 ft. Wind waves 1 to 2 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 45.46°N 123.99°W
Last Update: 2:46 am PST Dec 9, 2025
Forecast Valid: 3am PST Dec 9, 2025-6pm PST Dec 15, 2025
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