National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the Pacific Northwest through late Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
Read More...

Last Update: 247 AM PST SUN DEC 21 2014

View Nearby Observations

Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm

Marine Zone Forecast

...SMALL CRAFT ADVISORY FOR ROUGH BAR IN EFFECT THROUGH THIS
EVENING...


  • SynopsisHIGH PRESSURE BUILDING OFF THE CALIFORNIA COAST WILL RESULT IN INCREASING NORTHWEST WINDS OVER THE SOUTHERN AND OUTER WATERS THIS AFTERNOON THROUGH MONDAY. WINDS WILL DECREASE BY TUESDAY AS THE HIGH MOVES INTO THE GREAT BASIN. THE LARGE SWELLS THAT IMPACTED THE COAST ON SATURDAY ARE DECREASING. HOWEVER KING TIDES WILL IMPACT THE COAST AND INLAND BAYS OVER THE NEXT THREE DAYS. KING TIDE IMPACTS FOR SEAFARING VESSELS WILL OCCUR PRIMARILY DURING LOW TIDES...WITH THE POSSIBILITIES OF BOAT KEELS TOUCHING HARBOR BOTTOM...STRONG CURRENTS IN HARBOR ENTRANCES...AND ADDITIONAL BREAKING WAVES OVER OFFSHORE REEFS.
  • Today NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 10 to 13 ft at 14 seconds.
  • Tonight NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 9 to 11 ft at 14 seconds.
  • Mon NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 8 to 10 ft at 13 seconds.
  • Mon Night NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 7 to 9 ft at 13 seconds.
  • Tue NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 8 to 10 ft at 18 seconds.
  • Wed NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 8 to 10 ft. Slight chance of rain.
  • Christmas Day N winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 7 to 9 ft.

    .....san francisco bar/fourfathom bank forecast.....

    in the deep water channel...combined seas 11 to 13 feet with a dominant swell period of 14 seconds...becoming 10 to 12 feet tonight.

    across the bar...combined seas 11 to 13 feet with a dominant period of 14 seconds...becoming 10 to 12 feet tonight. maximum ebb current of 1.1 knots at 02:42 am sunday and 2.8 knots at 02:15 pm sunday.



Additional Forecasts and Information

Zone Area Forecast for Coastal Waters from Point Reyes to Pigeon Point California out to 10 nm
Mobile Version