Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Small Craft Advisory until December 10, 10:00 PM PST

For More Weather Information:

Portland, OR Local Forecast Office

32NM WSW Long Beach WA

Marine Point Forecast

[NOTICE]

Tonight
SW 27kt
14ft

Small Craft Advisory
Wednesday
SW 27kt
13-14ft

Small Craft Advisory
Wednesday Night
WSW 23kt
11-13ft

Small Craft Advisory
Thursday
WNW 10kt
9-10ft
Thursday Night
SE 8kt
7-8ft
Friday
SW 8kt
6-7ft
Friday Night
SW 8kt
5ft
Saturday
S 14kt
6-7ft
Saturday Night
SSW 17kt
8ft

Associated Zone Forecast which includes this point

Last Update: 5:45 pm PST Dec 9, 2025
Forecast Valid: 6pm PST Dec 9, 2025-6pm PST Dec 16, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

Tonight

SW wind 22 to 27 kt. Rain. WSW swell 11 to 12 ft at 11 seconds. Wind waves 5 to 7 ft.

Wednesday

SW wind 25 to 27 kt. Rain. WSW swell 12 ft at 11 seconds. Wind waves 5 to 7 ft.

Wednesday Night

WSW wind 16 to 23 kt. Rain. W swell 12 ft at 12 seconds. Wind waves 3 to 5 ft.

Thursday

WNW wind 8 to 10 kt becoming E in the afternoon. Rain. W swell 9 to 10 ft. Wind waves 1 to 2 ft.

Thursday Night

SE wind around 8 kt becoming SSW after midnight. Rain. W swell 8 ft. Wind waves around 1 ft.

Friday

SW wind around 8 kt. Rain likely, mainly before 10am. W swell 6 to 7 ft. Wind waves around 1 ft.

Friday Night

SW wind around 8 kt. A chance of rain. W swell 5 ft. Wind waves around 1 ft.

Saturday

S wind 9 to 14 kt. Rain likely. W swell 6 ft. Wind waves 2 to 3 ft.

Saturday Night

SSW wind 15 to 17 kt. Rain. WSW swell 7 ft. Wind waves around 3 ft.

*Notices:

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.
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.