National Weather Service United States Department of Commerce

Powerful snowstorm, including blizzard conditions, forecast in parts of the Northeast Monday into Tuesday

The clipper system bringing snow to the Ohio Valley and mid-Atlantic Sunday and Monday will transition to a strong nor'easter Monday into Tuesday. Heavy snow and strong wind, even blizzard conditions, are possible in parts of the northern mid-Atlantic and New England. A Blizzard Watch is in effect from coastal New Jersey to Massachusetts. Winter Storm Watches stretch from Delaware to Maine.
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6NM WNW San Francisco CA

Marine Point Forecast [NOTICE]

This
Afternoon

Sunny

ENE 7kt
4ft

Tonight

Mostly Clear

Light Wind
4-5ft

Monday

Mostly Sunny

ENE 8kt
4-5ft

Monday
Night

Mostly Cloudy

Light Wind
4ft

Tuesday

Slight Chc Showers

S 9kt
4ft

Tuesday
Night

Mostly Cloudy

Light Wind
3ft

Wednesday

Partly Sunny

Light Wind
3-4ft

Wednesday
Night

Mostly Cloudy

Light Wind
2-3ft

Thursday

Mostly Sunny

Light Wind
2ft

Associated Zone Forecast which includes this point

Last Update: 2:44 am PST Jan 25, 2015
Forecast Valid: 1pm PST Jan 25, 2015-6pm PST Jan 31, 2015

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Detailed Forecast



  • SynopsisHIGH PRESSURE SHIFTS DOWNSTREAM AND WEAKENS OVER THE COASTAL WATERS THROUGH THE NEXT 24 HOURS. OFFSHORE FLOW WILL PERSIST INTO EARLY NEXT WEEK ALONG THE COASTLINE WITH SOUTHERLY FLOW PREVAILING FURTHER OFFSHORE. NORTHERLY WINDS RETURN LATE WEDNESDAY/EARLY THURSDAY. THE LARGE LONG PERIOD SWELL HAS TAPERED OFF BUT WILL CONTINUE TO IMPACT THE COASTAL WATERS THROUGH THIS AFTERNOON. THIS LONG PERIOD SWELL WILL RESULT IN LARGE BREAKERS NEAR BARS...SHOALS AND JETTIES LEADING TO HAZARDOUS CONDITIONS ALONG THE COAST.
  • This Afternoon ENE wind around 7 kt. Sunny. W swell 4 ft at 15 seconds. Wind waves around 1 ft.
  • Tonight Variable winds 5 kt or less. Mostly clear. W swell 5 ft at 15 seconds. Wind waves around 1 ft.
  • Monday ENE wind 6 to 8 kt. Mostly sunny. W swell 4 to 5 ft at 15 seconds. Wind waves around 1 ft.
  • Monday Night Variable winds 5 kt or less. Mostly cloudy. W swell 4 ft. Wind waves around 1 ft.
  • Tuesday S wind 7 to 9 kt. A slight chance of showers after 10am. W swell 4 ft. Wind waves around 1 ft.
  • Tuesday Night Variable winds 5 kt or less. Mostly cloudy. W swell 3 ft. Wind waves around 1 ft.
  • Wednesday Variable winds 5 kt or less. Partly sunny. WNW swell 3 to 4 ft. Wind waves around 1 ft.
  • Wednesday Night Variable winds 5 kt or less. Mostly cloudy. W swell 2 to 3 ft. Wind waves around 1 ft.
  • Thursday Variable winds 5 kt or less. Mostly sunny. W swell 2 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 6 TO 8 FEET WITH A DOMINANT SWELL PERIOD OF 15 SECONDS. ACROSS THE BAR...COMBINED SEAS 7 TO 9 FEET WITH A DOMINANT SWELL PERIOD OF 15 SECONDS. MAXIMUM EBB CURRENT OF 1.8 KNOTS AT 07:39 PM SUNDAY AND 2.0 KNOTS AT 08:08 AM MONDAY.

*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.