


Coastal Waters Forecast
Issued by NWS Portland, ME
Issued by NWS Portland, ME
307 FZUS51 KGYX 171032 CWFGYX Coastal Waters Forecast National Weather Service Gray ME 632 AM EDT Thu Jul 17 2025 COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM ANZ100-180045- 632 AM EDT Thu Jul 17 2025 .Synopsis for Stonington ME to Merrimack River Ma out to 25 NM A front will approach the water tonight, but until it crosses the area a hot and humid air mass will remain in place. Marine fog and stratus will hang over the waters through the day and into tonight before drier air finally clears it out. Friday will be breezy behind the front and a few wind gusts near 25 knots are possible through the day. High pressure then settles over the region and will slowly drift south of the area through the weekend. $$ ANZ154-180045- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 632 AM EDT Thu Jul 17 2025 .TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds. Patchy fog. Scattered showers with isolated tstms early this afternoon. Scattered showers and tstms late. Vsby 1 NM or less, increasing to 1 to 3 NM late this morning and afternoon. .TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the evening with vsby 1 to 3 NM. .FRI...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .FRI NIGHT...NW winds around 5 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds. A chance of showers in the evening, then showers likely after midnight. .SUN...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Showers likely, mainly in the morning. .SUN NIGHT...W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas around 2 ft. A chance of showers in the evening. .MON...N winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. $$ ANZ152-180045- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- 632 AM EDT Thu Jul 17 2025 .TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Areas of dense fog early this morning, then areas of fog late this morning and early afternoon. Patchy fog late. Isolated showers and tstms early this afternoon. Scattered showers and tstms late. Vsby 1 NM or less, increasing to 1 to 3 NM late this morning and afternoon. .TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Seas around 3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the evening with vsby 1 NM or less. .FRI...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 3 ft. Wave Detail: S 3 ft at 6 seconds. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .SAT...W winds around 5 kt, becoming S with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Showers likely after midnight. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely, mainly in the morning. .SUN NIGHT...W winds 5 to 10 kt, becoming NW with gusts up to 20 kt after midnight. Seas around 2 ft. .MON...N winds around 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. $$ ANZ150-180045- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- 632 AM EDT Thu Jul 17 2025 .TODAY...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. Areas of dense fog early this morning, then areas of fog late this morning and afternoon. Isolated showers and tstms late. Vsby 1 NM or less, increasing to 1 to 3 NM late this morning and afternoon. .TONIGHT...S winds 10 to 15 kt, becoming SW 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the evening. Patchy fog after midnight. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 4 ft at 6 seconds. .FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds. .SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds. A chance of showers after midnight. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt, becoming NW 10 to 15 kt after midnight. Seas 2 to 3 ft. A chance of showers in the evening. .MON...N winds 5 to 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. $$ ANZ153-180045- Casco Bay- 632 AM EDT Thu Jul 17 2025 .TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas around 2 ft. Patchy fog. Scattered showers and tstms this afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM late this morning and afternoon. .TONIGHT...SW winds 10 to 15 kt, becoming W after midnight. Seas 2 to 3 ft. Patchy fog in the evening with vsby 1 to 3 NM. .FRI...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. .FRI NIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas around 2 ft. .SAT...W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers. .SUN...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. A chance of showers in the evening. .MON...N winds 5 to 10 kt, becoming NW in the afternoon. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Winds and seas higher in and near tstms. $$ ANZ151-180045- Penobscot Bay- 632 AM EDT Thu Jul 17 2025 .TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds. Patchy fog. Isolated showers and tstms this afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM late this morning and afternoon. .TONIGHT...S winds around 10 kt, becoming SW with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog in the evening. Patchy fog after midnight. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .FRI...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds. .FRI NIGHT...NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds. .SAT...W winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers after midnight. .SUN...SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas around 2 ft. A chance of showers in the evening. .MON...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. .MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms. $$