


Coastal Waters Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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783 FZUS51 KGYX 311017 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 617 AM EDT Sun Aug 31 2025 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM ANZ100-010030- 617 AM EDT Sun Aug 31 2025 .Synopsis for Stonington ME to Merrimack River Ma out to 25 NM The forecast remains dry and winds are expected to be light with small seas into the middle of the week as high pressure builds into the region. $$ ANZ154-010030- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 617 AM EDT Sun Aug 31 2025 .TODAY...N winds 5 to 10 kt, becoming S this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TONIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .MON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds. .MON NIGHT...NE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .TUE...NE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .TUE NIGHT...S winds around 5 kt, becoming SW after midnight. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .WED...SW winds 5 to 10 kt. Seas around 4 ft. .WED NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 3 to 4 ft. .THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers after midnight. $$ ANZ152-010030- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 617 AM EDT Sun Aug 31 2025 .TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TONIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .MON NIGHT...E winds around 5 kt, becoming NE after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .TUE...E winds around 5 kt. Seas 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: SE 2 ft at 8 seconds, becoming SE 4 ft at 9 seconds. .WED...SW winds 5 to 10 kt. Seas 4 to 5 ft. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. .THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers after midnight. $$ ANZ150-010030- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 617 AM EDT Sun Aug 31 2025 .TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .MON...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds. .MON NIGHT...SE winds around 5 kt, becoming NE after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. .TUE...NE winds around 5 kt. Seas 1 foot or less, then around 2 ft in the afternoon. .TUE NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds. .WED...SW winds 5 to 10 kt. Seas 4 to 5 ft. .WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers after midnight. $$ ANZ153-010030- Casco Bay- 617 AM EDT Sun Aug 31 2025 .TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. .TONIGHT...SW winds around 5 kt, becoming NW after midnight. Seas around 2 ft. .MON...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. .MON NIGHT...SE winds around 5 kt, becoming NE after midnight. Seas around 2 ft. .TUE...NE winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas 1 foot or less. .TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas 2 to 4 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. .THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers after midnight. $$ ANZ151-010030- Penobscot Bay- 617 AM EDT Sun Aug 31 2025 .TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas around 2 ft. .TONIGHT...W winds around 5 kt, becoming NW after midnight. Seas around 2 ft. .MON...N winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. .MON NIGHT...S winds around 5 kt in the evening, becoming light and variable. Seas 1 foot or less. .TUE...NE winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas 1 foot or less. .TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. $$