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.
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Last Update: 259 AM PST SUN DEC 21 2014

View Nearby Observations

Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...



  • SynopsisA RIDGE OVER THE REGION WILL MAINTAIN A LIGHT TO MODERATE BREEZE THROUGH TUESDAY. AS A FRONT APPROACHES THE REGION MIDWEEK...WINDS WILL INCREASE TO NEAR GALES ACROSS THE OUTER WATERS WHILE THE INNER WATERS CAN EXPECT ELEVATED CONDITIONS. WESTERLY SWELL GENERATED BY DISTANT STORMS SHOULD CONTINUE THIS WEEK.
  • Today NW winds 10 to 15 kt. Waves W 13 ft at 14 seconds. Chance of rain.
  • Tonight NW winds 5 to 10 kt. Waves W 12 ft at 13 seconds. Slight chance of rain.
  • Mon N winds 5 to 15 kt. Waves N 2 ft at 5 seconds...and W 11 ft at 14 seconds. Slight chance of rain.
  • Mon Night N winds 15 to 20 kt. Waves N 4 ft at 6 seconds... And W 11 ft at 19 seconds.
  • Tue N winds 10 to 20 kt. Waves N 4 ft at 6 seconds...and W 11 ft at 18 seconds.
  • Wed N winds 15 to 25 kt. Waves N 7 ft at 7 seconds...and NW 11 ft at 16 seconds.
  • Thu N winds 20 to 30 kt. Waves N 8 ft at 8 seconds...and NW 8 ft at 14 seconds.



Additional Forecasts and Information

Zone Area Forecast for Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm
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