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

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

13NM WNW San Francisco CA

Marine Point Forecast

[NOTICE]

Late Afternoon
S 27kt
6ft

Small Craft Advisory
Tonight
SW 23kt
6-7ft

Small Craft Advisory
Sunday
W 22kt
8-9ft

Small Craft Advisory
Sunday Night
W 14kt⇓
5-6ft
Monday
⇑W 10kt
3-4ft
Monday Night
NW 16kt
4-5ft
Tuesday
NW 14kt
3-4ft
Tuesday Night
NW 18kt
3-4ft
Wednesday
NW 19kt
3ft

Associated Zone Forecast which includes this point

Last Update: 1:26 pm PDT Apr 11, 2026
Forecast Valid: 5pm PDT Apr 11, 2026-6pm PDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Late Afternoon

S wind around 27 kt, with gusts as high as 34 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mixed swell...WNW 2 ft at 11 seconds and SSW 2 ft at 6 seconds. Wind waves around 5 ft.

Tonight

SW wind 20 to 23 kt, with gusts as high as 29 kt. Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Mixed swell...NW 2 ft at 11 seconds and SW 5 ft at 7 seconds. Wind waves 4 to 5 ft.

Sunday

W wind 15 to 22 kt, with gusts as high as 28 kt. Showers and thunderstorms, mainly before 1pm. Mixed swell...W 6 ft at 11 seconds and SW 5 ft at 9 seconds becoming 2 ft at 14 seconds . Wind waves 3 to 4 ft.

Sunday Night

W wind 9 to 14 kt becoming variable and less than 5 kt after midnight. A slight chance of showers before 11pm. Mixed swell...W 4 to 6 ft and S 2 ft. Wind waves 1 to 2 ft.

Monday

Variable winds less than 5 kt becoming W 5 to 10 kt in the afternoon. Sunny. Mixed swell...WNW 3 to 4 ft and SW 2 ft. Wind waves 1 ft or less.

Monday Night

NW wind 14 to 16 kt. Mostly clear. Mixed swell...WNW 3 ft and SSW 2 ft. Wind waves around 2 ft.

Tuesday

NW wind 11 to 14 kt. Sunny. Mixed swell...WNW 1 to 3 ft and SW 2 ft becoming S. Wind waves around 2 ft.

Tuesday Night

NW wind 15 to 18 kt, with gusts as high as 24 kt. Mostly clear. Mixed swell...WNW 3 ft and SSW 1 to 2 ft. Wind waves 2 to 3 ft.

Wednesday

NW wind 14 to 19 kt, with gusts as high as 25 kt. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SSW 1 ft. Wind waves 2 to 3 ft.

Winds and seas higher in and near tstms. .....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 feet at 15 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.