Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains today. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 1, 03:00 PM PDT until April 1, 11:00 PM PDT

For More Weather Information:

Seattle, WA Local Forecast Office

17NM S Seattle WA

Marine Point Forecast

[NOTICE]

Late Afternoon
SSW 15kt
1ft

Small Craft Advisory
Tonight
SSW 18kt
< 1ft

Small Craft Advisory
Thursday
SW 13kt
< 1ft
Thursday Night
SSW 13kt
1ft
Friday
S 6kt⇓
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
⇑N 8kt
< 1ft
Saturday Night
NNE 8kt
< 1ft
Sunday
NNE 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Apr 1, 2026
Forecast Valid: 5pm PDT Apr 1, 2026-6pm PDT Apr 8, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM PDT THIS EVENING...

Late Afternoon

SSW wind around 15 kt. Rain. Waves around 1 ft.

Tonight

SSW wind 11 to 18 kt. A chance of rain. Waves 1 ft or less.

Thursday

SW wind 10 to 13 kt. A chance of rain, mainly before 3pm. Waves 1 ft or less.

Thursday Night

SSW wind 8 to 13 kt. Mostly cloudy. Waves around 1 ft.

Friday

S wind around 6 kt becoming variable and less than 5 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Friday Night

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

Saturday

Variable winds less than 5 kt becoming N 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

Saturday Night

NNE wind 5 to 8 kt. Partly cloudy. Waves 1 ft or less.

Sunday

NNE wind 5 to 7 kt. Partly sunny. 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.