Coastal Waters Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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060 FZUS51 KGYX 211203 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 802 AM EDT Mon Sep 21 2026 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 60 NM ANZ100-220100- 802 AM EDT Mon Sep 21 2026 .Synopsis for Stonington ME to Merrimack River Ma out to 60 NM... Strong high pressure north of the Great Lakes slowly makes its way east through midweek. Broad low pressure will deepen south of the waters late week into the weekend. Depending on proximity, this could bring increasing wave heights amid persistent northwest winds. $$ ANZ151-220100- Penobscot Bay- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 5 to 10 kt. Seas 1 foot or less. .TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight. .TUE...NE winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...NE winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas around 2 ft. .WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...NE winds around 5 kt. Seas around 2 ft. .THU...NE winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...NE winds around 5 kt, increasing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers in the afternoon. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers. $$ ANZ153-220100- Casco Bay- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 5 to 10 kt. Seas around 2 ft. .TONIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 2 ft. .TUE NIGHT...NE winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. .THU...NE winds 5 to 10 kt. Seas 2 to 4 ft. .THU NIGHT...NE winds around 5 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. .FRI...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers in the afternoon. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. $$ ANZ150-220100- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt this afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds. .TONIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and SE 2 ft at 9 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and SE 2 ft at 8 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds. .WED NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .THU NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 5 to 7 ft. .FRI...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 7 to 10 ft. A chance of showers in the afternoon. .FRI NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. A chance of showers. $$ ANZ152-220100- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 8 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds. .WED NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds. .THU...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. .THU NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Seas 5 to 8 ft. .FRI...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 7 to 10 ft. A chance of showers in the afternoon. .FRI NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft. A chance of showers. $$ ANZ154-220100- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. .TONIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 3 ft at 7 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 7 seconds. .WED NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. .THU NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 7 to 9 ft. .FRI...NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 8 to 11 ft. A chance of showers in the afternoon. .FRI NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 11 ft. A chance of showers in the evening, then showers likely after midnight. $$ ANZ180-220100- Waters from Stonington ME to Port Clyde ME from 25 to 60 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt late. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 2 ft at 9 seconds. .TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 6 seconds and SE 2 ft at 9 seconds. .TUE NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 6 seconds. .WED NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Wave Detail: E 6 ft at 8 seconds. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. .FRI...NE winds 25 to 35 kt. Gusts up to 40 kt, increasing to 50 kt in the afternoon. Seas 9 to 13 ft. A chance of showers. .FRI NIGHT...NE winds 30 to 35 kt with gusts up to 50 kt. Seas 10 to 13 ft. A chance of showers in the evening, then showers likely after midnight. $$ ANZ182-220100- Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt, diminishing to 5 to 10 kt late. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 2 ft at 9 seconds. .TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NE 4 ft at 6 seconds and SE 2 ft at 9 seconds. .TUE NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and SE 2 ft at 8 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft at 6 seconds. .WED NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. Wave Detail: E 6 ft at 8 seconds. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 9 ft. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 8 to 10 ft. .FRI...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 9 to 13 ft. A chance of showers. .FRI NIGHT...NE winds around 30 kt with gusts up to 45 kt. Seas 11 to 13 ft. Showers likely. $$ ANZ184-220100- Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM- 802 AM EDT Mon Sep 21 2026 .TODAY...N winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt late. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds. .TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 2 ft at 9 seconds. .TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 5 seconds and SE 2 ft at 8 seconds. .TUE NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and SE 2 ft at 8 seconds. .WED...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft, building to 6 to 7 ft in the afternoon. Wave Detail: E 6 ft at 7 seconds. .WED NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. Wave Detail: E 6 ft at 8 seconds. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 9 ft. .THU NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 8 to 10 ft. .FRI...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 9 to 11 ft, building to 10 to 13 ft in the afternoon. A chance of showers. .FRI NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 11 to 12 ft. Showers likely. $$