National Weather Service United States Department of Commerce

More heavy rain and mountain snow in the Pacific Northwest on Saturday

Active weather will persist in the Pacific Northwest on Saturday. The hardest hit areas will likely be from the northern California coastline to eastern Washington as rainfall totals will range from 1 to 4 inches. In the higher elevations, precipitation will fall as snow with the some mountain peaks receiving up to a foot.
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12NM SSE San Francisco CA

Marine Point Forecast [NOTICE]

Overnight

Chance Showers

Light Wind
< 1ft

Saturday

Mostly Cloudy

Light Wind
< 1ft

Saturday
Night

Slight Chc Showers

Light Wind
< 1ft

Sunday

Partly Sunny

Light Wind
< 1ft

Sunday
Night

Partly Cloudy

NW 8kt
< 1ft

Monday

Mostly Sunny

N 6kt
< 1ft

Monday
Night

Partly Cloudy

N 7kt
< 1ft

Tuesday

Sunny

NE 6kt
< 1ft

Tuesday
Night

Partly Cloudy

Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 9:19 pm PST Dec 19, 2014
Forecast Valid: 11pm PST Dec 19, 2014-6pm PST Dec 26, 2014

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Detailed Forecast



  • SynopsisA STRONG STORM SYSTEM MOVING THROUGH THE GULF OF ALASKA HAS GENERATED A LARGE LONG PERIOD WESTERLY SWELL. THIS SWELL WILL MOVE INTO THE WATERS OVERNIGHT TONIGHT AND CONTINUE TO BUILD ON SATURDAY. SWELLS ARE EXPECT TO BEGIN TO DECREASE SATURDAY AFTERNOON. THE LARGE LONG PERIOD SWELL WILL RESULT IN LARGE BREAKING WAVES ACROSS THE SAN FRANCISCO BAR AND OFFSHORE REEFS AND ROCK OUTCROPPINGS. MARINERS ARE URGED TO USE CAUTION WHILE NAVIGATING THE WATERS TONIGHT INTO SATURDAY.
  • Overnight Variable winds 5 kt or less. A chance of showers. . Wind waves 1 ft or less.
  • Saturday Variable winds 5 kt or less. Mostly cloudy. . Wind waves 1 ft or less.
  • Saturday Night Variable winds 5 kt or less. A slight chance of showers. . Wind waves 1 ft or less.
  • Sunday Variable winds 5 kt or less. Partly sunny. . Wind waves 1 ft or less.
  • Sunday Night NW wind 5 to 8 kt. Partly cloudy. . Wind waves 1 ft or less.
  • Monday N wind around 6 kt. Mostly sunny. . Wind waves 1 ft or less.
  • Monday Night N wind around 7 kt. Partly cloudy. . Wind waves 1 ft or less.
  • Tuesday NE wind around 6 kt. Sunny. . Wind waves 1 ft or less.
  • Tuesday Night Variable winds 5 kt or less. Partly cloudy. . Wind waves 1 ft or less.
*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.