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 Waters From James Island To Point Grenville 10 To 60 Nm (PZZ173) (Text-Only)
NWS Forecast for: Waters From James Island To Point Grenville 10 To 60 Nm (PZZ173)
Issued by: National Weather Service Seattle, WA
Last Update: 258 AM PST Mon Dec 18 2017




Today: NW wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less. W swell 8 ft at 11 seconds. A slight chance of rain in the morning then a chance of rain in the afternoon.

Tonight: E wind 5 to 15 kt becoming SE 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 25 to 35 kt becoming W 25 to 30 kt in the afternoon. Combined seas 11 to 14 ft with a dominant period of 14 seconds. Rain in the morning then rain likely in the afternoon.

Tue Night: NW wind 20 to 30 kt. Wind waves 5 to 7 ft.

Wed: N wind 15 to 25 kt easing to 5 to 15 kt in the afternoon. Wind waves 3 to 5 ft subsiding to 2 ft or less in the afternoon. W swell 14 ft at 12 seconds.

Wed Night: NE wind to 10 kt becoming E after midnight. Wind waves 1 ft or less. NW swell 11 ft at 11 seconds.

Thu: SE wind to 10 kt becoming W 5 to 15 ft. 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 6 ft.



Zone Forecast: Waters From James Island To Point Grenville 10 To 60 Nm (PZZ173)

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