Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 22, 04:00 AM PDT until April 22, 08:00 PM PDT

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SSW Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
SSW 13kt
1ft

Small Craft Advisory
Wednesday
SW 21kt
1ft

Small Craft Advisory
Wednesday Night
SSW 19kt
1ft

Small Craft Advisory
Thursday
SSW 8kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
⇑N 12kt
< 1ft
Friday Night
N 10kt⇓
< 1ft
Saturday
Light Wind
< 1ft
Saturday Night
N 7kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:15 pm PDT Apr 21, 2026
Forecast Valid: 10pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH

Tonight

SSW wind 10 to 13 kt. Rain, mainly after 1am. Waves around 1 ft.

Wednesday

SW wind 14 to 21 kt, with gusts as high as 27 kt. Rain, mainly before 1pm. Waves around 1 ft.

Wednesday Night

SSW wind 11 to 19 kt, with gusts as high as 25 kt. A slight chance of rain before 11pm. Waves around 1 ft.

Thursday

SSW wind 5 to 8 kt becoming WNW in the afternoon. Partly sunny. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming N 7 to 12 kt in the afternoon. Sunny. Waves 1 ft or less.

Friday Night

N wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Clear. Waves 1 ft or less.

Saturday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Saturday Night

N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

*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.