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 West Coast through 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.
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Last Update: 247 AM PST SUN DEC 21 2014

View Nearby Observations

Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM PST THIS AFTERNOON
THROUGH MONDAY MORNING...


  • 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 15 to 25 kt. Wind waves 3 to 6 ft. NW swell 11 to 13 ft at 15 seconds.
  • Tonight NW winds 20 to 30 kt. Wind waves 4 to 7 ft. NW swell 10 to 12 ft at 14 seconds.
  • Mon NW winds 15 to 25 kt. Wind waves 3 to 6 ft. NW swell 8 to 10 ft at 14 seconds.
  • Mon Night NW winds 15 to 25 kt. Wind waves 3 to 6 ft. W swell 8 to 9 ft at 13 seconds.
  • Tue NE winds 10 to 20 kt...becoming W 5 to 15 kt. Wind waves 3 to 5 ft. W swell 8 to 10 ft at 18 seconds.
  • Wed NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 9 to 10 ft. Slight chance of rain.
  • Christmas Day N winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 8 to 10 ft.



Additional Forecasts and Information

Zone Area Forecast for Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm
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