Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest
Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. 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: 247 PM PDT Tue Apr 14 2026 |  |
Tonight: W wind 20 to 25 kt, easing to 15 to 20 kt late this evening and overnight. Seas 8 to 10 ft. Wave detail: S 6 ft at 8 seconds, W 10 ft at 9 seconds and S 2 ft at 14 seconds. A chance of rain with a slight chance of tstms after midnight. Showers with a slight chance of tstms late. Wed: NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave detail: SW 2 ft at 8 seconds, W 9 ft at 10 seconds and SW 2 ft at 14 seconds. showers in the morning, then a chance of rain in the afternoon. Wed Night: NW wind 20 to 25 kt. Seas 9 to 12 ft. Wave detail: W 11 ft at 10 seconds. Thu: NW wind 15 to 20 kt. Seas 8 to 10 ft, subsiding to 7 to 8 ft in the afternoon. Wave detail: W 9 ft at 10 seconds. Thu Night: NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 7 to 9 ft, subsiding to 6 to 7 ft after midnight. Wave detail: NW 8 ft at 9 seconds. Fri: W wind 5 to 10 kt, backing to SW in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds. Fri Night: SE wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 8 seconds and SW 2 ft at 14 seconds. Sat: SE wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas around 3 ft, building to 4 to 6 ft in the afternoon. Wave detail: SE 5 ft at 5 seconds, W 4 ft at 9 seconds and W 2 ft at 12 seconds. A chance of rain. Sat Night: SE wind 15 to 20 kt. Seas 6 to 8 ft. Wave detail: S 7 ft at 9 seconds, W 4 ft at 9 seconds and S 2 ft at 16 seconds. Rain. Sun: SE wind 15 to 20 kt. Seas 6 to 7 ft. Wave detail: S 6 ft at 8 seconds and W 2 ft at 14 seconds. Rain likely, mainly in the morning. Sun Night: S wind around 15 kt, veering to W after midnight. Seas 6 to 8 ft. Wave detail: S 6 ft at 8 seconds and W 5 ft at 14 seconds. A chance of rain. winds and seas higher in and near tstms. | |
| Zone Forecast: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) | |
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