National Weather Service United States Department of Commerce

Winter weather forecast for Rockies and southern Plains

A developing storm system will bring snow to parts of the Rockies and southern Plains on Friday, which will move into the central U.S. on Saturday. Freezing rain is also forecast from Texas to the mid-Mississippi Valley and into the Carolinas. Meanwhile, temperatures will be 20-40 degrees below normal across parts of the central and southern U.S. on Friday.
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30NM WNW San Francisco CA

Marine Point Forecast [NOTICE]

Today

Slight Chc Showers

NW 23kt
8ft

Tonight

Chance Showers

NW 22kt
7-8ft

Saturday

Chance Showers

NNW 12kt
5-6ft

Saturday
Night

Slight Chc Thunderstorms

NE 8kt
6-7ft

Sunday

Sunny

W 7kt
6-7ft

Sunday
Night

Partly Cloudy

WNW 9kt
6ft

Monday

Slight Chc Showers

WNW 12kt
5-6ft

Monday
Night

Slight Chc Showers

NNW 18kt
6-7ft

Tuesday

Slight Chc Showers

NW 14kt
5-6ft

Associated Zone Forecast which includes this point

Last Update: 7:35 am PST Feb 27, 2015
Forecast Valid: 10am PST Feb 27, 2015-6pm PST Mar 5, 2015

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

  • SynopsisA STORM SYSTEM WILL APPROACH THE REGION TODAY RESULTING IN VERY GUSTY NORTHERLY WINDS OVER COASTAL WATERS...INCLUDING BAYS. THE GUSTY WINDS WILL PRODUCE HAZARDOUS CONDITIONS WITH STEEP WIND WAVES AND FRESH SWELL. THE STORM SYSTEM WILL BRING A POSSIBILITY OF SHOWERS AND THUNDERSTORMS TO THE COASTAL WATERS BEGINNING THIS AFTERNOON LASTING INTO SATURDAY EVENING. WINDS WILL DECREASE AND SEA CONDITIONS WILL IMPROVE FOR A MAJORITY OF THE WATERS BY SATURDAY AFTERNOON AS THE CENTER OF THE STORM SYSTEM PASSES ALONG THE CALIFORNIA COAST.
  • Today NW wind around 23 kt, with gusts as high as 29 kt. A slight chance of showers after 1pm. WNW swell 6 ft at 9 seconds. Wind waves around 5 ft.
  • Tonight NW wind 17 to 22 kt, with gusts as high as 28 kt. A chance of showers. WNW swell 6 ft at 9 seconds. Wind waves 5 ft subsiding to 2 ft.
  • Saturday NNW wind 9 to 12 kt. A chance of showers, with thunderstorms also possible after 10am. WNW swell 5 ft at 9 seconds. Wind waves around 1 ft.
  • Saturday Night NE wind around 8 kt. A slight chance of showers and thunderstorms. WNW swell 6 ft. Wind waves around 1 ft.
  • Sunday NE wind around 7 kt becoming W in the morning. Sunny. WNW swell 6 ft. Wind waves around 1 ft.
  • Sunday Night WNW wind 7 to 9 kt. Partly cloudy. WNW swell 5 to 6 ft. Wind waves around 1 ft.
  • Monday WNW wind 8 to 12 kt. A slight chance of showers. WNW swell 5 ft. Wind waves around 1 ft.
  • Monday Night NNW wind around 18 kt. A slight chance of showers. WNW swell 6 ft. Wind waves around 2 ft.
  • Tuesday NW wind 10 to 14 kt. A slight chance of showers. WNW swell 5 to 6 ft. Wind waves 1 to 2 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 6 TO 8 FEET WITH A DOMINANT SWELL PERIOD OF 9 SECONDS. ACROSS THE BAR...COMBINED SEAS 7 TO 9 FEET WITH A DOMINANT SWELL PERIOD OF 9 SECONDS. MAXIMUM EBB CURRENT OF 1.6 KNOTS AT 10:47 AM FRIDAY AND 1.2 KNOTS AT 11:48 PM FRIDAY.

*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.