Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Coastal Waters Forecast for Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm (PZZ156) (Text-Only)
NWS Forecast for: Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm (PZZ156)
Issued by: National Weather Service Seattle, WA
Last Update: 214 PM PDT Sat Apr 18 2026
Print


Tonight: SE wind 5 to 10 kt, backing to E late. Seas 3 to 4 ft. Wave detail: NW 2 ft at 8 seconds, SW 4 ft at 9 seconds and W 2 ft at 12 seconds. A slight chance of rain late.

Sun: NE wind 5 to 10 kt, backing to N in the afternoon. Seas 3 to 4 ft. Wave detail: SW 4 ft at 8 seconds.

Sun Night: W wind 5 to 10 kt, veering to NW after midnight. Seas 4 to 6 ft. Wave detail: SW 4 ft at 9 seconds and W 4 ft at 14 seconds.

Mon: NE wind around 5 kt, backing to W in the afternoon. Seas 4 to 6 ft. Wave detail: SW 4 ft at 8 seconds and W 4 ft at 12 seconds.

Mon Night: SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: SW 3 ft at 8 seconds and W 4 ft at 10 seconds. A chance of rain after midnight.

Tue: SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave detail: SW 3 ft at 8 seconds and W 4 ft at 10 seconds. Rain likely.

Tue Night: W wind around 10 kt. Seas 4 to 6 ft. Wave detail: SW 2 ft at 7 seconds, W 5 ft at 9 seconds and W 4 ft at 15 seconds. A chance of rain.

Wed: W wind 10 to 15 kt. Seas 5 to 8 ft, building to 7 to 10 ft in the afternoon. Wave detail: W 10 ft at 11 seconds. A chance of rain.

Wed Night: W wind 10 to 15 kt, becoming S 5 to 10 kt after midnight. Seas 8 to 10 ft. Wave detail: W 10 ft at 12 seconds.

Thu: SE wind 5 to 10 kt, veering to SW in the afternoon. Seas 6 to 9 ft. Wave detail: W 9 ft at 12 seconds.

Thu Night: NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: NW 2 ft at 7 seconds and W 6 ft at 11 seconds.







Zone Forecast: Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm (PZZ156)

Visit your local NWS office at: https://www.weather.gov/sew