


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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870 FZUS51 KBOX 150504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Sat Mar 15 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-151800- 104 AM EDT Sat Mar 15 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... Weak high pres and dry weather lingers over the waters into tomorrow. By Sun, a cold front approaches from the W with increasing S winds approaching gale force Sun night. Heavy rain moves over the waters Mon morning into Mon night ahead of a cold front. High pres sits over the waters Tues and Wed. Another low pressure approaches from the Great Lakes Thurs. $$ ANZ250-151800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and S 2 ft at 4 seconds. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and S 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SUN...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 3 ft at 10 seconds. Patchy fog in the morning. .SUN NIGHT AND MON...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: S 7 ft at 6 seconds and E 2 ft at 10 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 9 seconds and S 4 ft at 6 seconds. Rain likely, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-151800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .SAT...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: E 3 ft at 10 seconds. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 11 seconds and S 2 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM in the evening. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 3 ft at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 2 ft at 10 seconds. Rain. Vsby 1 to 3 NM after midnight. .MON...S winds 15 to 20 kt with gusts up to 30 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: S 5 ft at 5 seconds and E 1 foot at 10 seconds, becoming S 4 ft at 6 seconds and W 1 foot at 3 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Rain likely, mainly in the evening with vsby 1 to 3 NM. .TUE THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ231-151800- Cape Cod Bay- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 foot at 4 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 foot at 4 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and S 1 foot at 2 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 to 3 NM in the morning. .SUN NIGHT AND MON...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 4 ft at 4 seconds and SE 3 ft at 10 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 10 seconds and N 2 ft at 4 seconds. Rain, mainly in the evening with vsby 1 to 3 NM. .TUE THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-151800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 10 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and S 1 foot at 7 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and S 3 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: S 4 ft at 5 seconds and E 3 ft at 11 seconds, becoming S 5 ft at 5 seconds and E 3 ft at 10 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: S 8 ft at 7 seconds and E 2 ft at 10 seconds. A chance of rain after midnight with vsby 1 to 3 NM. .MON...S winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 7 to 10 ft. Wave Detail: S 8 ft at 9 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 6 to 9 ft. Rain. Vsby 1 to 3 NM in the evening. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 8 ft. A chance of rain. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ255-151800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and SE 1 foot at 7 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less. .SAT NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 10 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 6 seconds and E 3 ft at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave Detail: S 10 ft at 8 seconds and E 2 ft at 10 seconds. A chance of rain after midnight with vsby 1 to 3 NM. .MON...S winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 8 to 11 ft. Wave Detail: S 10 ft at 10 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NW winds 10 to 15 kt, becoming N after midnight. Gusts up to 20 kt. Seas 7 to 10 ft. Rain, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft. A chance of rain. .TUE NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. .WED AND WED NIGHT...NE winds around 10 kt, becoming SE. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-151800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 3 ft at 10 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: S 5 ft at 5 seconds and E 3 ft at 11 seconds, becoming S 6 ft at 6 seconds and E 2 ft at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT AND MON...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Wave Detail: S 10 ft at 10 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 7 to 10 ft. Wave Detail: S 10 ft at 11 seconds. Rain likely, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ232-151800- Nantucket Sound- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 foot at 7 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less. .SAT NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 5 seconds and E 1 foot at 11 seconds. Rain likely after midnight with vsby 1 to 3 NM. .MON...S winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 5 ft at 5 seconds and SE 3 ft at 10 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 4 to 6 ft. Rain, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt. Seas 3 to 5 ft. A chance of rain. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-151800- Vineyard Sound- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 10 seconds and S 1 foot at 7 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 11 seconds. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT AND MON...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: S 7 ft at 7 seconds and SE 7 ft at 10 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 11 seconds and N 1 foot at 4 seconds. Rain, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt. Seas 3 to 5 ft. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ234-151800- Buzzards Bay- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 7 seconds and SE 1 foot at 9 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 7 seconds and E 1 foot at 10 seconds. Patchy dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 1 foot or less, then around 2 ft after midnight. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 10 seconds, becoming S 2 ft at 3 seconds and E 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and E 1 foot at 10 seconds. Patchy fog. Vsby 1 to 3 NM in the morning. .SUN NIGHT AND MON...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 6 seconds and S 5 ft at 10 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 3 ft at 11 seconds and N 1 foot at 4 seconds. Rain, mainly in the evening with vsby 1 to 3 NM. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. .WED AND WED NIGHT...E winds around 10 kt, becoming SE. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-151800- Rhode Island Sound- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or less. .SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 6 seconds and SE 1 foot at 11 seconds. Patchy fog. Vsby 1 to 3 NM in the morning. .SUN NIGHT AND MON...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. Wave Detail: S 10 ft at 9 seconds. A chance of rain in the evening, then rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 6 to 8 ft. Wave Detail: S 8 ft at 10 seconds. Rain likely, mainly in the evening with vsby 1 to 3 NM. .TUE...N winds 10 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ237-151800- Block Island Sound- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM. .SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and S 1 foot at 7 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 to 3 NM in the morning. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to 9 ft. Wave Detail: S 8 ft at 8 seconds and E 1 foot at 11 seconds. Rain. Vsby 1 to 3 NM after midnight. .MON...S winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: S 8 ft at 9 seconds and SE 8 ft at 10 seconds. Rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. Rain likely, mainly in the evening. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. .TUE NIGHT THROUGH WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-151800- Boston Harbor- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds around 5 kt. Waves 1 foot or less. Patchy fog. .SAT...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. Patchy fog in the morning with vsby 1 to 3 NM. .SAT NIGHT...S winds 10 to 15 kt. Waves around 2 ft. Patchy fog after midnight. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft. Rain. Vsby 1 to 3 NM after midnight. .MON AND MON NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Rain. Vsby 1 to 3 NM. .TUE THROUGH WED NIGHT...SE winds 10 to 15 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ236-151800- Narragansett Bay- 104 AM EDT Sat Mar 15 2025 ...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... .REST OF TONIGHT...S winds around 5 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .SAT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .SUN...S winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 5 ft. Patchy fog in the morning with vsby 1 to 3 NM. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Waves 5 to 7 ft. Rain. Vsby 1 to 3 NM after midnight. .MON...S winds 15 to 20 kt with gusts up to 25 kt, becoming W around 10 kt in the afternoon. Waves 4 to 6 ft. Rain. Vsby 1 to 3 NM. .MON NIGHT...N winds 10 to 15 kt. Waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. Rain likely, mainly in the evening. .TUE THROUGH WED NIGHT...SE winds 5 to 10 kt. Waves 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston