Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Hazardous Weather Conditions

Gale Warning until April 14, 11:00 PM PDT

For More Weather Information:

Seattle, WA Local Forecast Office

6NM WSW Seattle WA

Marine Point Forecast

[NOTICE]

This Afternoon
S 26kt
3ft

Gale Warning
Tonight
SSW 24kt⇓
1-3ft

Gale Warning
Wednesday
S 9kt
< 1ft
Wednesday Night
N 7kt⇓
< 1ft
Thursday
S 8kt
< 1ft
Thursday Night
SSE 8kt
< 1ft
Friday
Light Wind
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:27 am PDT Apr 14, 2026
Forecast Valid: 3pm PDT Apr 14, 2026-6pm PDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

...GALE WARNING IN EFFECT UNTIL 11 PM PDT THIS EVENING...

This Afternoon

S wind around 26 kt, with gusts as high as 33 kt. Rain. Waves around 3 ft.

Tonight

SSW wind 19 to 24 kt becoming SE 7 to 12 kt in the evening. Winds could gust as high as 30 kt. Rain, mainly before 1am. Waves 1 to 3 ft.

Wednesday

S wind 7 to 9 kt becoming N in the afternoon. A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 1pm. Waves 1 ft or less.

Wednesday Night

N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Rain likely before 11pm. Waves 1 ft or less.

Thursday

S wind 5 to 8 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

SSE wind 5 to 8 kt. Mostly cloudy. Waves 1 ft or less.

Friday

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

Friday Night

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

Saturday

Variable winds 5 kt or less. Mostly cloudy. 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.