Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains into the morning. Read More >

Hazardous Weather Conditions

Small Craft Advisory until April 3, 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]

Tonight
NW 18kt
2-4ft

Small Craft Advisory
Thursday
NW 23kt
5-6ft

Small Craft Advisory
Thursday Night
NNW 24kt
8ft

Small Craft Advisory
Friday
WNW 13kt
5-6ft
Friday Night
NW 9kt⇓
4-5ft
Saturday
NE 10kt
4ft
Saturday Night
NW 6kt⇓
3-4ft
Sunday
⇑WNW 7kt
3ft
Sunday Night
WNW 8kt⇓
3ft

Associated Zone Forecast which includes this point

Last Update: 8:46 pm PDT Apr 1, 2026
Forecast Valid: 10pm PDT Apr 1, 2026-6pm PDT Apr 8, 2026

View Nearby Observations

Detailed Forecast

Tonight

SW wind 14 to 18 kt becoming NW after midnight. Rain, mainly before midnight. Mixed swell...WNW 1 ft at 12 seconds and SW 3 ft at 5 seconds building to at 12 seconds . Wind waves 2 to 3 ft.

Thursday

NW wind 16 to 23 kt. Sunny. Mixed swell...WNW 2 ft at 10 seconds and SSW 1 ft at 12 seconds. Wind waves 3 to 4 ft.

Thursday Night

NNW wind 14 to 24 kt. Mostly clear. Mixed swell...WNW 6 ft at 12 seconds and SSW 1 ft at 13 seconds. Wind waves around 4 ft.

Friday

WNW wind 8 to 13 kt. Sunny. . Wind waves around 3 ft.

Friday Night

NW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. . Wind waves 2 to 3 ft.

Saturday

NE wind 6 to 10 kt. Sunny. . Wind waves around 1 ft.

Saturday Night

NW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. . Waves 3 to 4 ft.

Sunday

Variable winds less than 5 kt becoming WNW 5 to 7 kt in the afternoon. Mostly sunny. . Waves around 3 ft.

Sunday Night

WNW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Partly cloudy. . Waves around 3 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 4 feet at 14 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 3.6 kt at 05:36 AM Thursday and 2.0 kt at 06:01 PM 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.