Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.
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Coastal Waters Forecast for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) (Text-Only)
NWS Forecast for: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170)
Issued by: National Weather Service Seattle, WA
Last Update: 258 AM PST Mon Dec 18 2017




Today: NW wind 10 to 20 kt easing to 10 kt in the afternoon. Wind waves 2 to 3 ft subsiding to 1 ft or less in the afternoon. W swell 9 ft at 11 seconds. A slight chance of rain in the morning then a chance of rain in the afternoon.

Tonight: E wind to 10 kt rising to 15 to 25 kt after midnight. Wind waves 2 ft or less building to 3 to 5 ft after midnight. W swell 9 ft at 15 seconds. Rain.

Tue: SW wind 20 to 30 kt becoming NW in the afternoon. Wind waves 5 to 7 ft. W swell 10 ft at 14 seconds. Rain in the morning then a chance of rain in the afternoon.

Tue Night: NW wind 20 to 30 kt easing to 15 to 25 kt after midnight. Wind waves 5 to 7 ft subsiding to 3 to 5 ft after midnight. W swell 15 ft at 11 seconds.

Wed: N wind 15 to 20 kt becoming NE 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft. W swell 15 ft at 12 seconds subsiding to 13 ft at 12 seconds in the afternoon.

Wed Night: E wind to 10 kt. Wind waves 1 ft or less. W swell 11 ft at 11 seconds.

Thu: SE wind to 10 kt becoming W 5 to 15 kt. Wind waves 2 ft or less. NW swell 7 ft.

Fri: N wind 5 to 15 kt becoming NE 10 to 20 kt. Wind waves 1 to 3 ft. W swell 7 ft.



Zone Forecast: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170)

Visit your local NWS office at: http://www.wrh.noaa.gov/sew