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 13, 03:00 PM PDT until April 15, 03:00 AM PDT

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

37NM SSE Point Arena CA

Marine Point Forecast

[NOTICE]

Today
NW 19kt
6ft

Small Craft Advisory
Tonight
NW 22kt
7ft

Small Craft Advisory
Tuesday
NW 22kt
6-7ft

Small Craft Advisory
Tuesday Night
NW 22kt
5-7ft

Small Craft Advisory
Wednesday
NW 18kt
4-5ft
Wednesday Night
NNW 22kt
7ft
Thursday
NNW 24kt
8ft
Thursday Night
NNW 26kt
8-10ft
Friday
NNW 13kt
6ft

Associated Zone Forecast which includes this point

Last Update: 8:52 am PDT Apr 13, 2026
Forecast Valid: 9am PDT Apr 13, 2026-6pm PDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

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

Today

NW wind 9 to 19 kt. Sunny. Mixed swell...WNW 4 to 6 ft at 10 seconds and SSW 2 ft at 14 seconds. Wind waves 1 to 3 ft.

Tonight

NW wind 20 to 22 kt. Mostly clear. Mixed swell...WNW 6 ft at 7 seconds and SSW 2 to 4 ft at 14 seconds. Wind waves around 4 ft.

Tuesday

NW wind 18 to 22 kt. Sunny. Mixed swell...WNW 5 to 6 ft at 8 seconds and SSW 2 ft at 14 seconds. Wind waves around 3 ft.

Tuesday Night

NW wind 19 to 22 kt. Increasing clouds. Mixed swell...NW 4 to 5 ft and SSW 1 to 2 ft. Wind waves 3 to 4 ft.

Wednesday

NW wind 16 to 18 kt. Partly sunny. Mixed swell...WNW 2 to 3 ft and SSW 1 to 2 ft. Wind waves 2 to 3 ft.

Wednesday Night

NNW wind 16 to 22 kt. Partly cloudy. Mixed swell...NW 6 ft and SSW 2 ft. Wind waves 3 to 4 ft.

Thursday

NNW wind 22 to 24 kt. Sunny. Mixed swell...NW 7 ft and SSW 1 ft. Wind waves around 4 ft.

Thursday Night

NNW wind 16 to 26 kt. Mostly clear. Mixed swell...NW 7 to 8 ft and SSW 1 ft. Wind waves 4 to 5 ft.

Friday

NNW wind 10 to 13 kt. Sunny. Mixed swell...NW 3 to 5 ft and SW 4 ft. Wind waves around 2 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.