Coastal Waters Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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027 FZUS51 KGYX 122102 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 502 PM EDT Tue May 12 2026 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM ANZ100-131000- 502 PM EDT Tue May 12 2026 .Synopsis for Stonington ME to Merrimack River Ma out to 25 NM... High pressure builds overhead this evening with pressure centers north and south of the coastal waters. Low pressure tracks out of the Great Lakes mid- week, pivoting off the New England coast through late week. $$ ANZ151-131000- Penobscot Bay- 502 PM EDT Tue May 12 2026 .TONIGHT...W winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .WED...S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. A chance of showers in the afternoon. .WED NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers in the evening. .THU...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. Rain likely in the afternoon. .THU NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 6 seconds. Rain. .FRI...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 2 seconds and S 2 ft at 7 seconds. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...NW winds around 5 kt. Seas 2 to 4 ft. Showers likely in the evening. .SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. $$ ANZ153-131000- Casco Bay- 502 PM EDT Tue May 12 2026 .TONIGHT...SW winds 5 to 10 kt, becoming NW late this evening and early morning, then becoming light and variable towards daybreak. Seas 2 to 3 ft. .WED...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. A chance of showers in the afternoon. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers in the evening. .THU...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain in the morning, then rain in the afternoon. .THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...NW winds around 5 kt. Seas 2 to 4 ft. A chance of showers in the evening. .SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Seas 1 to 2 ft. $$ ANZ150-131000- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 502 PM EDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. A chance of showers in the afternoon. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 6 seconds. .THU...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around 4 ft. Wave Detail: S 4 ft at 6 seconds. Rain in the afternoon. .THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 6 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 7 seconds and SE 6 ft at 11 seconds. Rain in the morning, then showers in the afternoon. .FRI NIGHT...NW winds 5 to 10 kt. Seas 4 to 5 ft. Showers likely in the evening. .SAT...W winds 5 to 10 kt, becoming SW 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 4 to 5 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. $$ ANZ152-131000- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 502 PM EDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W around 5 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 3 seconds. .WED...SE winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 6 seconds. .THU...SE winds 15 to 20 kt with gusts up to 25 kt. Seas around 4 ft. Wave Detail: S 4 ft at 6 seconds. A chance of rain in the morning, then rain in the afternoon. .THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds. Rain in the morning, then showers in the afternoon. .FRI NIGHT...NW winds 5 to 10 kt, becoming W after midnight. Seas around 5 ft. A chance of showers in the evening. .SAT...W winds 5 to 10 kt, becoming SW 15 to 20 kt in the afternoon. Seas around 5 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .SUN 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. $$ ANZ154-131000- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 502 PM EDT Tue May 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight, then becoming SE towards daybreak. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...S winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 7 seconds. A chance of showers in the afternoon. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 5 seconds. .THU...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of rain in the morning, then rain in the afternoon. .THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 5 ft at 10 seconds. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...NW winds 5 to 10 kt, becoming W after midnight. Seas 4 to 5 ft. A chance of showers in the evening. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 4 to 5 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. $$ ANZ180-131000- Waters from Stonington ME to Port Clyde ME from 25 to 60 NM- 502 PM EDT Tue May 12 2026 .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 7 seconds. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 6 seconds. .THU...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 6 seconds. Rain likely in the afternoon. .THU NIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 6 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SE 6 ft at 11 seconds and E 5 ft at 7 seconds. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...N winds around 10 kt, becoming NW after midnight. Seas 5 to 6 ft. Showers likely in the evening. .SAT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...SW winds around 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. $$ ANZ182-131000- Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM- 502 PM EDT Tue May 12 2026 .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 3 seconds. .WED...S winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 6 seconds. .THU...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds. A chance of rain in the morning, then rain in the afternoon. .THU NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 7 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at 6 seconds and SE 6 ft at 10 seconds. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...N winds around 10 kt, becoming NW after midnight. Seas 5 to 6 ft. A chance of showers in the evening. .SAT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 5 to 6 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. .SUN...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. .SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. $$ ANZ184-131000- Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM- 502 PM EDT Tue May 12 2026 .TONIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .WED...S winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 6 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 6 seconds. .THU...SE winds 15 to 20 kt with gusts up to 25 kt. Seas around 4 ft. Wave Detail: SE 4 ft at 5 seconds. A chance of rain in the morning, then rain in the afternoon. .THU NIGHT...E winds around 15 kt with gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. Rain. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 ft. Wave Detail: E 5 ft at 6 seconds and SE 5 ft at 10 seconds. Rain in the morning, then showers likely in the afternoon. .FRI NIGHT...N winds around 10 kt, becoming W with gusts up to 20 kt after midnight. Seas around 5 ft. A chance of showers in the evening. .SAT...W winds around 10 kt, becoming SW 15 to 20 kt in the afternoon. Seas 4 to 5 ft. .SAT NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. $$