Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Small Craft Advisory until March 11, 03:00 AM PDT

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM W San Francisco CA

Marine Point Forecast

[NOTICE]

This Afternoon
NW 25kt
7ft

Small Craft Advisory
Tonight
NW 22kt
6-7ft

Small Craft Advisory
Wednesday
NW 12kt
4-5ft
Wednesday Night
NW 13kt
4ft
Thursday
NNW 12kt
4ft
Thursday Night
NW 15kt
4-5ft
Friday
NNW 14kt
4ft
Friday Night
NW 20kt
5ft
Saturday
NNW 20kt
4-5ft

Associated Zone Forecast which includes this point

Last Update: 12:27 pm PDT Mar 10, 2026
Forecast Valid: 1pm PDT Mar 10, 2026-6pm PDT Mar 16, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NW wind 23 to 25 kt, with gusts as high as 31 kt. Sunny. Mixed swell...WNW 6 ft at 10 seconds and SSW 1 ft at 17 seconds. Wind waves around 4 ft.

Tonight

NW wind 13 to 22 kt, with gusts as high as 28 kt. Mostly clear. Mixed swell...NW 5 to 6 ft at 10 seconds and SSW 1 ft at 19 seconds. Wind waves 3 to 4 ft.

Wednesday

NW wind 8 to 12 kt. Sunny. Mixed swell...WNW 4 to 5 ft at 9 seconds and SSW 1 ft at 20 seconds. Wind waves around 2 ft.

Wednesday Night

NW wind 11 to 13 kt. Mostly clear. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 2 ft.

Thursday

NNW wind 9 to 12 kt. Sunny. Mixed swell...WNW 3 to 4 ft and SSW 1 ft. Wind waves 1 to 2 ft.

Thursday Night

NW wind around 15 kt. Mostly clear. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 2 ft.

Friday

NNW wind 12 to 14 kt. Partly sunny. Mixed swell...WNW 3 to 4 ft and SSW 1 ft. Wind waves 2 to 3 ft.

Friday Night

NW wind 16 to 20 kt, with gusts as high as 26 kt. Mostly cloudy. Mixed swell...NW 4 ft and SSW 1 ft. Wind waves 3 to 4 ft.

Saturday

NNW wind 16 to 20 kt, with gusts as high as 26 kt. Sunny. Mixed swell...WNW 3 ft and SSW 1 ft. Wind waves around 3 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 6 to 8 feet at 11 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 1.9 kt at 09:14 AM Tuesday and 0.7 kt at 11:25 PM Tuesday.

*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.