Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 14, 05:00 AM PDT until April 15, 05:00 AM PDT

For More Weather Information:

Portland, OR Local Forecast Office

Ocean Park WA

Marine Point Forecast

[NOTICE]

This Afternoon
W 8kt
4-5ft
Tonight
WSW 8kt
4ft
Tuesday
SSW 18kt
9ft

Small Craft Advisory
Tuesday Night
SW 17kt
12ft

Small Craft Advisory
Wednesday
WNW 10kt
7-8ft
Wednesday Night
NW 11kt
8-9ft
Thursday
WNW 10kt
7-8ft
Thursday Night
NW 9kt
5-7ft
Friday
Light Wind
3-4ft

Associated Zone Forecast which includes this point

Last Update: 12:41 pm PDT Apr 13, 2026
Forecast Valid: 12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

W wind around 8 kt. A slight chance of showers between 1pm and 2pm. W swell 5 ft at 8 seconds. Wind waves around 2 ft.

Tonight

WSW wind 5 to 8 kt. Showers likely, mainly between 4am and 5am. W swell 4 ft at 8 seconds. Wind waves 1 to 2 ft.

Tuesday

SSW wind 10 to 18 kt, with gusts as high as 26 kt. Showers before 10am, then rain between 10am and 11am, then showers and possibly a thunderstorm after 11am. W swell 4 ft at 5 seconds becoming WNW. Wind waves 3 ft building to 8 ft.

Tuesday Night

SW wind 8 to 17 kt becoming NNW after midnight. Winds could gust as high as 25 kt. Rain. W swell 7 to 8 ft. Wind waves 10 ft subsiding to 5 ft.

Wednesday

WNW wind 7 to 10 kt. Rain likely, then showers and possibly a thunderstorm after 11am. WNW swell 6 to 7 ft. Wind waves around 4 ft.

Wednesday Night

NW wind 8 to 11 kt. Showers and possibly a thunderstorm. WNW swell 8 ft. Wind waves around 4 ft.

Thursday

WNW wind 7 to 10 kt. A chance of showers. WNW swell 7 ft. Wind waves 3 to 4 ft.

Thursday Night

NW wind 6 to 9 kt. A slight chance of rain. NW swell 5 to 7 ft. Wind waves 1 to 3 ft.

Friday

Variable winds 5 kt or less. A slight chance of rain. NW swell 3 to 4 ft. Wind waves around 1 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.