Turning Stormy in the Northwest

An active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rain and high elevation snow. Northern California will benefit from rainfall this week that will aid firefighters given the recent large wildfires.
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Last Update: 856 PM PDT Tue Oct 17 2017

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Seattle, WA Local Forecast Office

63NM SSW Forks WA

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM PDT WEDNESDAY...
...GALE WARNING IN EFFECT FROM 4 AM PDT WEDNESDAY THROUGH WEDNESDAY EVENING...
Synopsis: PZZ100-181300- 856 PM PDT Tue Oct 17 2017 .Synopsis for the northern and central Washington coastal and inland waters...Onshore flow will ease across the region tonight. A strong frontal system will affect the area Wednesday with gales expected most waters. Onshore flow will prevail Thursday and Friday with swells reaching 20 feet over the Coastal Waters. Another strong frontal system will reach the area Saturday. $$

Tonight
S wind to 10 kt rising to 15 to 25 kt after midnight. Wind waves 1 ft or less building to 3 to 5 ft after midnight. W swell 9 ft at 10 seconds. Rain likely after midnight.
Wed
S wind 25 to 35 kt becoming SW 30 to 40 kt in the afternoon. Combined seas 8 to 11 ft with a dominant period of 10 seconds building to 13 to 16 ft with a dominant period of 8 seconds in the afternoon. Rain.
Wed Night
SW wind 25 to 35 kt easing to 15 to 25 kt after midnight. Combined seas 14 to 17 ft with a dominant period of 10 seconds subsiding to 11 to 13 ft with a dominant period of 10 seconds after midnight. Rain in the evening then a chance of rain after midnight.
Thu
SW wind 15 to 25 kt becoming 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft. W swell 16 ft at 11 seconds building to 23 ft at 15 seconds in the afternoon.
Thu Night
W wind 15 to 25 kt becoming 10 to 20 kt after midnight. Wind waves 2 to 4 ft. W swell 24 ft at 18 seconds subsiding to 22 ft at 17 seconds after midnight.
Fri
W wind 15 to 25 kt becoming SW 5 to 15 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 2 ft or less in the afternoon. W swell 20 ft at 16 seconds.
Fri Night
SE wind 10 to 20 kt rising to 20 to 30 kt after midnight. Wind waves 1 to 3 ft building to 4 to 6 ft after midnight. W swell 16 ft at 14 seconds.
Sat
SE wind 25 to 35 kt becoming W 15 to 25 kt. Combined seas 14 to 17 ft.
Sun
SW wind 10 to 20 kt. Wind waves 1 to 3 ft. W swell 14 ft.
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Last Update: 856 PM PDT Tue Oct 17 2017
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