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: 1228 PM EST SUN DEC 21 2014

View Nearby Observations

Moriches Inlet NY to Montauk Point NY out 20 nm

Marine Zone Forecast





  • SynopsisHIGH PRESSURE BUILDS TO THE NORTH AND EAST OF THE WATERS THROUGH MONDAY. A VERY WEAK LOW PASSES SOUTH OF THE WATERS ON TUESDAY WITH A WARM FRONT REMAINING TO THE SOUTH. A STRONG COLD FRONT CROSSES THE WATERS WEDNESDAY NIGHT. HIGH PRESSURE BUILDS IN FOR THE END OF THE WEEK.
  • This Afternoon N winds 5 to 10 kt. Seas around 2 ft. A chance of light rain.
  • Tonight NE winds 5 to 10 kt. Seas around 2 ft. Scattered sprinkles and flurries.
  • Mon E winds 5 to 10 kt. Seas around 2 ft.
  • Mon Night E winds 5 to 10 kt. Seas 2 to 4 ft. A chance of rain.
  • Tue E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft...building to 4 to 5 ft in the afternoon. A chance of rain.
  • Tue Night E winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Rain likely.
  • Wed SE winds 15 to 20 kt with gusts up to 25 kt...becoming S 20 to 25 kt with gusts up to 30 kt in the afternoon...then increasing to 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft...building to 9 to 12 ft. Rain. Vsby 1 to 3 nm.
  • Thu W winds 20 to 25 kt with gusts up to 40 kt. Seas 9 to 12 ft...subsiding to 7 to 10 ft after midnight. Rain likely in the morning.



Additional Forecasts and Information

Zone Area Forecast for Moriches Inlet NY to Montauk Point NY out 20 nm
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