FZUS51 KGYX 182103 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 502 PM EDT Mon May 18 2026 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM ANZ100-191000- 502 PM EDT Mon May 18 2026 .Synopsis for Stonington ME to Merrimack River Ma out to 25 NM... Ocean waters remain very cold, and air temperatures will be warming through midweek. The warm air temperatures may cause people to underestimate the dangers of cold ocean waters. High pressure slowly moves over the western Atlantic through Tuesday with a cold front approaching. The front crosses Wednesday afternoon and evening with winds become west to northwesterly into Wednesday night. High pressure then builds across the region through late week. $$ ANZ151-191000- Penobscot Bay- 502 PM EDT Mon May 18 2026 .TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds. .THU...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas around 2 ft. .SAT...NE winds around 5 kt, becoming S around 5 kt in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. .SAT NIGHT...S winds around 5 kt, becoming E after midnight. Seas 1 foot or less. A chance of showers. $$ ANZ153-191000- Casco Bay- 502 PM EDT Mon May 18 2026 .TONIGHT...SE winds around 5 kt this evening, becoming light and variable, then becoming S around 5 kt towards daybreak. Seas around 2 ft. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers in the afternoon. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .THU...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds around 5 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW around 5 kt after midnight. Seas 2 to 3 ft. .SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .SAT NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less. A chance of showers. $$ ANZ150-191000- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...S winds 5 to 10 kt, becoming SW towards daybreak. Seas 3 to 4 ft. Wave Detail: S 3 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog in the morning with vsby 1to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and NW 3 ft at 3 seconds. .THU...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and NW 2 ft at 4 seconds. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers in the afternoon. .SAT NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. A chance of showers. $$ ANZ152-191000- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...SE winds 5 to 10 kt, becoming SW towards daybreak. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 7 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and W 3 ft at 3 seconds. A chance of showers in the evening. .THU...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and NW 2 ft at 4 seconds. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .SAT NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft. A chance of showers. $$ ANZ154-191000- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...SE winds 5 to 10 kt with gusts up to 20 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds and W 2 ft at 3 seconds. A chance of showers in the evening. .THU...N winds 10 to 15 kt with gusts up to 20 kt, becoming S 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and S 2 ft at 7 seconds. .THU NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .FRI...W winds around 5 kt, becoming S 10 to 15 kt withgusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. $$ ANZ180-191000- Waters from Stonington ME to Port Clyde ME from 25 to 60 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...S winds 10 to 15 kt, becoming SW towards daybreak. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: S 5 ft at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds around 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds. .WED...SW winds around 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: SW 6 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds. A chance of showers in the evening. .THU...NW winds 15 to 20 kt, becoming W around 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and S 3 ft at 7 seconds. .THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI...NW winds around 10 kt, becoming SW with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. .SAT...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. $$ ANZ182-191000- Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...S winds 10 to 15 kt, becoming SW towards daybreak. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: S 5 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds around 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 7 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and S 4 ft at 7 seconds. A chance of showers in the evening. .THU...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 4 seconds and S 3 ft at 7 seconds. .THU NIGHT...W winds 10 to 15 kt, becoming NW after midnight. Seas 2 to 3 ft. .FRI...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. .SAT...NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. A chance of showers. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of showers. $$ ANZ184-191000- Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM- 502 PM EDT Mon May 18 2026 .TONIGHT...S winds 10 to 15 kt, becoming SW after midnight. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 8 seconds. Patchy fog after midnight with vsby 1 to 3 NM. .TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds. .WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and W 2 ft at 4 seconds. Showers likely in the afternoon. .WED NIGHT...NW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 3 ft at 7 seconds. A chance of showers in the evening. .THU...N winds 15 to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and S 2 ft at 8 seconds. .THU NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. .FRI...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. .SAT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. $$