National Weather Service United States Department of Commerce

A Wintry Mix of Precipiatation Will Cross the Great Lakes Thursday

Light to moderate precipitation will spread from the Great Lakes and Ohio Valley to the northeast and mid-Atlantic states Thursday and Friday. The unusually warm temperatures over the Great Plains will come to an end. The southwest and four corners states will become increasingly wet Thursday and Friday.
Read More...

19NM S San Francisco CA

Marine Point Forecast [NOTICE]

Today

Mostly Sunny

Winds IncreasingNW 10kt
4ft

Tonight

Partly Cloudy

NW 10kt
4ft

Friday

Mostly Sunny

NW 11kt
3ft

Friday
Night

Decreasing Clouds

NW 10kt
5ft

Saturday

Sunny

Winds IncreasingNNW 7kt
5-6ft

Saturday
Night

Mostly Clear

WNW 8kt
4-5ft

Sunday

Mostly Sunny

Light Wind
4ft

Sunday
Night

Mostly Cloudy

Light Wind
3ft

Monday

Partly Sunny

Light Wind
4-5ft

Associated Zone Forecast which includes this point

Last Update: 2:39 am PST Jan 29, 2015
Forecast Valid: 7am PST Jan 29, 2015-6pm PST Feb 4, 2015

View Nearby Observations

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 Variable winds less than 5 kt becoming NW 5 to 10 kt in the morning. Mostly sunny. WNW swell 4 ft at 18 seconds. Wind waves around 1 ft.
  • Tonight NW wind around 10 kt. Partly cloudy. WNW swell 4 ft at 17 seconds. Wind waves around 1 ft.
  • Friday NW wind 8 to 11 kt. Mostly sunny. WNW swell 3 ft at 16 seconds. Wind waves around 1 ft.
  • Friday Night NW wind 6 to 10 kt. Mostly cloudy, then gradually becoming clear. W swell 5 ft. Wind waves around 1 ft.
  • Saturday Variable winds less than 5 kt becoming NNW 5 to 7 kt in the morning. Sunny. W swell 5 to 6 ft. Wind waves around 1 ft.
  • Saturday Night WNW wind 6 to 8 kt. Mostly clear. WNW swell 4 to 5 ft. Wind waves around 1 ft.
  • Sunday Variable winds 5 kt or less. Mostly sunny. WNW swell 4 ft. Wind waves around 1 ft.
  • Sunday Night Variable winds 5 kt or less. Mostly cloudy. WNW swell 3 ft. Wind waves around 1 ft.
  • Monday Variable winds 5 kt or less. Partly sunny. W 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.