Dangerous Heat and Heavy Rainfall into the Weekend
Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. 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: 129 AM PDT Sat Sep 19 2026 |  |
| Today: W wind around 5 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 8 seconds. Tonight: NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 3 ft at 4 seconds and W 3 ft at 7 seconds. Sun: NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: N 3 ft at 4 seconds and NW 4 ft at 10 seconds. Sun Night: NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: N 3 ft at 4 seconds, W 4 ft at 9 seconds and SW 2 ft at 18 seconds. Mon: NW wind 5 to 10 kt. Seas 4 to 6 ft, building to 7 to 9 ft in the afternoon. Wave detail: N 3 ft at 5 seconds, W 8 ft at 14 seconds and SW 2 ft at 18 seconds. Mon Night: NW wind 10 to 15 kt. Seas 8 to 9 ft. Wave detail: N 3 ft at 5 seconds, W 9 ft at 13 seconds and SW 2 ft at 18 seconds. Tue: NW wind 5 to 10 kt. Seas 7 to 9 ft, subsiding to 6 to 7 ft in the afternoon. Wave detail: N 2 ft at 5 seconds, W 8 ft at 12 seconds and SW 2 ft at 17 seconds. Tue Night: W wind 5 to 10 kt. Seas 5 to 6 ft. Wave detail: W 6 ft at 11 seconds and SW 2 ft at 17 seconds. A chance of rain after midnight. Wed: W wind 5 to 10 kt. Seas 5 to 6 ft. Wave detail: W 6 ft at 10 seconds and SW 2 ft at 16 seconds. A chance of rain in the morning. Wed Night: NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: W 6 ft at 10 seconds and SW 2 ft at 16 seconds. | |
| Zone Forecast: Coastal Waters From Cape Flattery To James Island 10 To 60 Nm (PZZ170) | |
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