Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains
A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for portions of the central and southern High Plains. Read More >
| 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: 119 PM PDT Tue Apr 21 2026 |  |
Tonight: W wind 10 to 15 kt, rising to 15 to 20 kt late. Seas 6 to 7 ft, building to 6 to 9 ft after midnight. Wave detail: S 2 ft at 7 seconds, NW 5 ft at 9 seconds and W 8 ft at 14 seconds. Rain likely, mainly this evening. Wed: NW wind 20 to 30 kt. Seas 8 to 11 ft, building to 10 to 14 ft in the afternoon. Wave detail: NW 2 ft at 5 seconds and W 14 ft at 13 seconds. Wed Night: NW wind 20 to 30 kt, becoming N 15 to 20 kt after midnight. Seas 13 to 16 ft, subsiding to 11 to 15 ft after midnight. Wave detail: NW 16 ft at 12 seconds. Thu: E wind 10 to 15 kt, veering to S in the afternoon. Seas 9 to 12 ft, subsiding to 8 to 9 ft in the afternoon. Wave detail: NW 11 ft at 11 seconds. Thu Night: NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: NW 8 ft at 11 seconds. Fri: NE wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 10 seconds and W 2 ft at 16 seconds. Fri Night: N wind 5 to 10 kt. Seas 5 to 6 ft. Wave detail: N 2 ft at 4 seconds, NW 5 ft at 9 seconds and W 3 ft at 14 seconds. Sat: N wind 5 to 10 kt. Seas 5 to 6 ft. Wave detail: NW 5 ft at 9 seconds and W 4 ft at 16 seconds. Sat Night: NW wind 5 to 10 kt. Seas 5 to 6 ft, building to 6 to 8 ft after midnight. Wave detail: N 2 ft at 5 seconds, NW 3 ft at 8 seconds and NW 7 ft at 15 seconds. Sun: W wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: N 2 ft at 5 seconds, SW 2 ft at 5 seconds and NW 2 ft at 8 seconds. Sun Night: W wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: N 2 ft at 5 seconds, SW 2 ft at 5 seconds and NW 7 ft at 13 seconds. | |
| Zone Forecast: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) | |
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