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 14, 03:00 AM PDT

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

15NM SSW San Francisco CA

Marine Point Forecast

[NOTICE]

Today
NW 14kt
5ft

Small Craft Advisory
Tonight
NW 16kt
5-6ft

Small Craft Advisory
Tuesday
WNW 15kt
5-6ft
Tuesday Night
NW 16kt
5ft
Wednesday
NW 15kt
4-5ft
Wednesday Night
NW 17kt
3-5ft
Thursday
NNW 18kt
6-7ft
Thursday Night
NW 19kt
7ft
Friday
N 11kt
4-5ft

Associated Zone Forecast which includes this point

Last Update: 8:52 am PDT Apr 13, 2026
Forecast Valid: 11am PDT Apr 13, 2026-6pm PDT Apr 19, 2026

View Nearby Observations

Detailed Forecast

Today

NW wind 6 to 14 kt. Sunny. Mixed swell...W 4 ft at 10 seconds and S 2 ft at 15 seconds. Wind waves around 2 ft.

Tonight

NW wind around 16 kt. Partly cloudy. Mixed swell...WNW 5 ft at 7 seconds and SSW 1 to 2 ft at 14 seconds. Wind waves around 3 ft.

Tuesday

WNW wind 12 to 15 kt. Mostly sunny. Mixed swell...WNW 4 to 5 ft at 8 seconds and SSW 2 ft at 14 seconds. Wind waves 2 to 3 ft.

Tuesday Night

NW wind around 16 kt. Partly cloudy. Mixed swell...NW 4 ft and SSW 1 to 2 ft. Wind waves around 2 ft.

Wednesday

NW wind around 15 kt. Partly sunny. Mixed swell...NW 3 to 4 ft and SSW 1 ft. Wind waves around 2 ft.

Wednesday Night

NW wind 13 to 17 kt. Mostly cloudy. Mixed swell...WNW 3 ft and SSW 1 ft. Wind waves 2 to 3 ft.

Thursday

NNW wind 16 to 18 kt. Sunny. Mixed swell...NW 5 to 6 ft and SSW 1 ft. Wind waves around 3 ft.

Thursday Night

NW wind 13 to 19 kt. Mostly clear. Mixed swell...WNW 6 ft and SSW 1 ft. Wind waves 2 to 3 ft.

Friday

N wind 9 to 11 kt becoming NW in the afternoon. Sunny. Mixed swell...WNW 3 to 5 ft and SW 2 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.