National Weather Service United States Department of Commerce

Winter weather forecast from Great Lakes to Northeast, Four Corners region

Snow is expected Thursday and Friday from the Great Lakes to the Northeast, as a clipper system moves across the region. This will be nothing like the nor'easter that brought up to three feet of snow to parts of the Northeast earlier this week, as snowfall totals of six inches or less are expected. Snow and freezing rain are forecast for parts of the Four Corners region through the weekend.
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30NM WNW San Francisco CA

Marine Point Forecast [NOTICE]

Today

Mostly Sunny

NW 11kt
4ft

Tonight

Partly Cloudy

NW 17kt
6ft

Friday

Mostly Sunny

NW 15kt
5ft

Friday
Night

Mostly Clear

NW 15kt
6ft

Saturday

Sunny

NNW 9kt
6-7ft

Saturday
Night

Mostly Clear

NW 14kt
5-6ft

Sunday

Partly Sunny

NW 8ktWinds Decreasing
5ft

Sunday
Night

Mostly Cloudy

Light Wind
3ft

Monday

Partly Sunny

NNW 7kt
5ft

Associated Zone Forecast which includes this point

Last Update: 2:39 am PST Jan 29, 2015
Forecast Valid: 9am PST Jan 29, 2015-6pm PST Feb 4, 2015

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Detailed Forecast



  • SynopsisTHE SURFACE PRESSURE GRADIENT WILL STRENGTHEN TODAY RESULTING IN INCREASING NORTHWESTERLY WINDS. WINDS WILL BE STRONGEST TONIGHT THROUGH EARLY SATURDAY MORNING...ESPECIALLY OVER THE OUTER WATERS. THE SURFACE PRESSURE GRADIENT WILL WEAKEN ON SATURDAY PROMOTING GENERALLY LIGHT WINDS THROUGH THE WEEKEND. A LONG PERIOD WESTERLY SWELL WILL PASS THROUGH THE WATERS TODAY. THIS LONG PERIOD SWELL WILL RESULT IN BREAKING WAVES AT REEFS AND SANDBARS ALONG THE COAST TODAY...ESPECIALLY DURING TIMES OF LOW TIDE.
  • Today NW wind 8 to 11 kt. Mostly sunny. W swell 4 ft at 18 seconds. Wind waves around 1 ft.
  • Tonight NW wind around 17 kt. Partly cloudy. WNW swell 5 ft at 17 seconds. Wind waves around 2 ft.
  • Friday NW wind 12 to 15 kt. Mostly sunny. WNW swell 5 ft at 16 seconds. Wind waves 1 to 2 ft.
  • Friday Night NW wind around 15 kt. Mostly clear. W swell 6 ft. Wind waves around 2 ft.
  • Saturday NNW wind around 9 kt. Sunny. W swell 6 to 7 ft. Wind waves around 1 ft.
  • Saturday Night NW wind 11 to 14 kt. Mostly clear. W swell 5 to 6 ft. Wind waves 1 to 2 ft.
  • Sunday NW wind 5 to 8 kt becoming variable and less than 5 kt in the morning. Partly sunny. W swell 5 ft. Wind waves around 1 ft.
  • Sunday Night Variable winds 5 kt or less. Mostly cloudy. W swell 3 ft. Wind waves around 1 ft.
  • Monday NNW wind around 7 kt. Partly sunny. WNW swell 5 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 4 TO 5 FEET WITH A DOMINANT SWELL PERIOD OF 18 SECONDS. ACROSS THE BAR...COMBINED SEAS 5 TO 6 FEET WITH A DOMINANT SWELL PERIOD OF 18 SECONDS. MAXIMUM EBB CURRENT OF 2.1 KNOTS AT 11:19 AM THIS MORNING AND 1.1 KNOTS AT 12:02 AM EARLY FRIDAY MORNING.

*Notices:
  1. 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.
  2. 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.