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.
Read More...

Coastal Waters Forecast for Coastal Waters From James Island To Point Grenville Out 10 Nm (PZZ153) (Text-Only)
NWS Forecast for: Coastal Waters From James Island To Point Grenville Out 10 Nm (PZZ153)
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 9 ft at 11 seconds. A chance of rain.

Tonight: E wind to 10 kt becoming SE 15 to 25 kt after midnight. Wind waves 1 ft or less building to 2 to 4 ft after midnight. W swell 8 ft at 15 seconds. Rain.

Tue: SW wind 25 to 35 kt. Combined seas 11 to 14 ft with a dominant period of 15 seconds. Rain.

Tue Night: W wind 15 to 25 kt becoming NW 10 to 20 kt after midnight. Wind waves 3 to 5 ft subsiding to 1 to 3 ft after midnight. W swell 13 ft at 12 seconds.

Wed: N wind 5 to 15 kt becoming to 10 kt in the afternoon. Wind waves 2 ft or less. W swell 12 ft at 12 seconds.

Wed Night: NE wind to 10 kt becoming E after midnight. Wind waves 1 ft or less. W swell 10 ft at 12 seconds.

Thu: SE wind to 10 kt becoming SW. Wind waves 1 ft or less. W swell 6 ft.

Fri: N wind to 10 kt becoming NE 5 to 15 kt. Wind waves 2 ft or less. W swell 6 ft.



Zone Forecast: Coastal Waters From James Island To Point Grenville Out 10 Nm (PZZ153)

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