Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 15, 03:00 PM PDT until April 16, 09:00 PM PDT

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

10NM SSW San Francisco CA

Marine Point Forecast

[NOTICE]

This Afternoon
WNW 15kt
3ft

Small Craft Advisory
Tonight
WNW 18kt
3ft

Small Craft Advisory
Thursday
NW 15kt
4-5ft

Small Craft Advisory
Thursday Night
NW 16kt
5ft

Small Craft Advisory
Friday
N 9kt
3-4ft
Friday Night
NW 10kt
3ft
Saturday
⇑WNW 7kt
2-3ft
Saturday Night
WNW 8kt⇓
2ft
Sunday
⇑W 11kt
2ft

Associated Zone Forecast which includes this point

Last Update: 2:41 pm PDT Apr 15, 2026
Forecast Valid: 3pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WNW wind around 15 kt, with gusts as high as 21 kt. Mostly sunny. Mixed swell...WNW 3 ft at 6 seconds and SSW 1 ft at 14 seconds. Wind waves around 2 ft.

Tonight

WNW wind 14 to 18 kt, with gusts as high as 24 kt. Mostly cloudy, then gradually becoming mostly clear. Mixed swell...WNW 3 ft at 6 seconds and SSW 1 ft at 15 seconds. Wind waves 2 to 3 ft.

Thursday

N wind 10 to 15 kt becoming NW in the afternoon. Winds could gust as high as 21 kt. Sunny. Mixed swell...WNW 4 to 5 ft at 10 seconds and SW 1 ft at 13 seconds. Wind waves around 2 ft.

Thursday Night

NW wind 11 to 16 kt, with gusts as high as 22 kt. Mostly clear. Mixed swell...WNW 5 ft and SW 1 ft becoming S. Wind waves 2 to 3 ft.

Friday

N wind 5 to 9 kt becoming WNW in the afternoon. Sunny. Mixed swell...NW 3 to 4 ft and SSW 1 ft. Wind waves around 1 ft.

Friday Night

NW wind 5 to 10 kt. Partly cloudy. Mixed swell...NW 3 ft and SSW 1 to 2 ft. Wind waves around 1 ft.

Saturday

Variable winds less than 5 kt becoming WNW 5 to 7 kt in the afternoon. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SSW 1 to 2 ft. Wind waves 1 ft or less.

Saturday Night

WNW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Mixed swell...WNW 2 ft and SW 1 to 2 ft. Wind waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming W 6 to 11 kt in the morning. A chance of rain. Mixed swell...W 1 to 2 ft and S 1 ft. Wind waves 1 to 2 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 feet at 13 seconds. ACROSS THE BAR...Swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 2.1 kt at 03:43 PM Wednesday and 3.6 kt at 04:02 AM Thursday.

*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.