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 today. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from April 1, 03:00 PM PDT 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]

This Afternoon
WSW 13kt
3ft

Small Craft Advisory
Tonight
NW 19kt
2-4ft

Small Craft Advisory
Thursday
NW 21kt
5-6ft

Small Craft Advisory
Thursday Night
NW 25kt⇓
8ft

Small Craft Advisory
Friday
NW 14kt
6ft
Friday Night
NW 10kt⇓
5ft
Saturday
NE 10kt
4ft
Saturday Night
Light Wind
3-4ft
Sunday
⇑W 7kt
3ft

Associated Zone Forecast which includes this point

Last Update: 1:26 pm PDT Apr 1, 2026
Forecast Valid: 2pm PDT Apr 1, 2026-6pm PDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

WSW wind around 13 kt. Rain likely, mainly between 4pm and 5pm. Mixed swell...W 2 ft at 8 seconds and SSW 1 ft at 5 seconds. Wind waves around 2 ft.

Tonight

SW wind 12 to 19 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 15 to 21 kt. Sunny. Mixed swell...WNW 2 ft at 10 seconds and SSW 1 ft at 12 seconds decreasing to at 9 seconds . Wind waves 3 to 4 ft.

Thursday Night

NW wind 20 to 25 kt decreasing to 9 to 14 kt after midnight. Mostly clear. Mixed swell...WNW 6 ft and SSW 1 ft. Wind waves around 4 ft.

Friday

NNE wind 6 to 14 kt becoming NW in the morning. Sunny. . Wind waves around 3 ft.

Friday Night

NW wind 5 to 10 kt becoming variable and less than 5 kt. Mostly clear. . Wind waves 2 to 3 ft.

Saturday

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

Saturday Night

Variable winds 5 kt or less. Partly cloudy. . Waves 3 to 4 ft.

Sunday

Variable winds less than 5 kt becoming W 5 to 7 kt in the afternoon. Mostly sunny. . 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 2.2 kt at 05:16 PM Wednesday and 3.6 kt at 05:36 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.