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

35NM SW Seattle WA

Marine Point Forecast

[NOTICE]

Today
SSE 8kt
< 1ft
Tonight
SW 8kt⇓
< 1ft
Thursday
⇑WSW 9kt
< 1ft
Thursday Night
WSW 10kt⇓
< 1ft
Friday
Light Wind
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
Light Wind
< 1ft
Saturday Night
NE 6kt⇓
< 1ft
Sunday
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Mar 31, 2026
Forecast Valid: 9am PDT Apr 1, 2026-6pm PDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM PDT THIS AFTERNOON

Today

SSE wind 6 to 8 kt becoming SSW in the afternoon. Rain. Waves 1 ft or less.

Tonight

SW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. A chance of rain before 9pm, then a chance of rain after 11pm. Waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming WSW 5 to 9 kt in the afternoon. A chance of rain. Waves 1 ft or less.

Thursday Night

WSW wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.

Friday

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

Friday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Saturday

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

Saturday Night

NE wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. 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.