Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Small Craft Advisory until April 12, 03:00 PM PDT

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

15NM SSW San Francisco CA

Marine Point Forecast

[NOTICE]

Sunday
WSW 22kt
9ft

Small Craft Advisory
Sunday Night
W 10kt⇓
7-8ft
Monday
⇑WNW 11kt
5-6ft
Monday Night
NW 15kt
5-6ft
Tuesday
WNW 15kt
5-6ft
Tuesday Night
NW 16kt
4-5ft
Wednesday
NW 18kt
4-5ft
Wednesday Night
WNW 17kt
4ft
Thursday
NW 18kt
5-6ft

Associated Zone Forecast which includes this point

Last Update: 1:25 am PDT Apr 12, 2026
Forecast Valid: 1am PDT Apr 12, 2026-6pm PDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Sunday

WSW wind 15 to 22 kt. Showers and possibly a thunderstorm before 2pm, then showers likely. Mixed swell...W 8 ft at 10 seconds and WSW 7 ft at 9 seconds becoming SSW 2 ft at 15 seconds . Wind waves around 4 ft.

Sunday Night

W wind 5 to 10 kt becoming variable and less than 5 kt after midnight. A slight chance of showers before 9pm, then a slight chance of showers after 11pm. Mixed swell...W 6 to 7 ft at 10 seconds and SSW 2 ft at 15 seconds. Wind waves 1 to 2 ft.

Monday

Variable winds less than 5 kt becoming WNW 6 to 11 kt in the afternoon. Mostly sunny. Mixed swell...W 4 to 5 ft at 10 seconds and SSW 2 ft at 15 seconds. Wind waves 1 to 2 ft.

Monday Night

NW wind around 15 kt. Mostly clear. Mixed swell...WNW 5 ft and SSW 2 ft. Wind waves around 2 ft.

Tuesday

WNW wind 12 to 15 kt. Mostly sunny. Mixed swell...WNW 3 to 5 ft and SSW 2 ft. Wind waves around 2 ft.

Tuesday Night

NW wind around 16 kt. Mostly clear. Mixed swell...NW 4 ft and SSW 1 ft. Wind waves around 3 ft.

Wednesday

NW wind 15 to 18 kt. Mostly sunny. Mixed swell...WNW 3 to 4 ft and SSW 1 ft. Wind waves around 3 ft.

Wednesday Night

WNW wind 15 to 17 kt. Mostly cloudy. Mixed swell...NW 2 to 3 ft and SSW 1 ft. Wind waves around 3 ft.

Thursday

NW wind 16 to 18 kt, with gusts as high as 24 kt. Sunny. Mixed swell...NW 4 ft and SSW 1 ft. Wind waves around 3 ft.

Winds and seas higher in and near tstms. .....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 6 to 8 feet at 6 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 1.4 kt at 01:39 AM Sunday and 1.7 kt at 01:34 PM Sunday.

*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.