


Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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145 FZUS51 KBOX 130504 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 104 AM EDT Mon Oct 13 2025 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-131800- 104 AM EDT Mon Oct 13 2025 .Synopsis for Massachusetts and Rhode Island coastal waters... High pres remains over the Maritimes through Mon. A coastal storm to our S will impact the waters into Tues. Widespread rain with poor visibility at times into Tue. Decreasing winds and rain are expected through midweek as high pres returns from the NW. $$ ANZ250-131800- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...NE winds around 30 kt with gusts up to 40 kt. Seas 10 to 14 ft. Wave Detail: E 14 ft at 11 seconds and NE 8 ft at 7 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds around 30 kt with gusts up to 45 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 12 seconds and NE 9 ft at 8 seconds. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 12 to 15 ft, subsiding to 10 to 13 ft after midnight. Wave Detail: E 15 ft at 12 seconds and NE 7 ft at 9 seconds, becoming E 13 ft at 11 seconds and NE 7 ft at 7 seconds. Patchy fog. Showers. A chance of tstms after midnight. Vsby 1 to 3 NM. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 12 ft. Wave Detail: E 11 ft at 11 seconds and NE 6 ft at 6 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: E 8 ft at 11 seconds and NE 4 ft at 6 seconds, becoming SE 7 ft at 10 seconds and NE 2 ft at 5 seconds. A chance of showers. .WED...NW winds 10 to 15 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: SE 6 ft at 10 seconds and N 3 ft at 4 seconds. A chance of showers in the afternoon. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. A chance of showers. .THU...N winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. A chance of showers. .FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Winds and seas higher in and near tstms. 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. $$ ANZ251-131800- Massachusetts Bay and Ipswich Bay- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...NE winds around 30 kt with gusts up to 40 kt. Seas 7 to 10 ft. Wave Detail: NE 10 ft at 7 seconds and E 9 ft at 10 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 9 to 13 ft. Wave Detail: E 13 ft at 10 seconds and NE 9 ft at 8 seconds. Patchy fog. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 12 ft. Wave Detail: E 12 ft at 11 seconds and NE 8 ft at 9 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE 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: E 10 ft at 11 seconds and NE 7 ft at 7 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: E 7 ft at 11 seconds and NE 5 ft at 7 seconds. A chance of showers. .WED...NW winds 10 to 15 kt. Gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 5 ft at 10 seconds and N 3 ft at 4 seconds. A chance of showers in the afternoon. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .THU...N winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft. A chance of showers. .FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. .FRI NIGHT...NW 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. $$ ANZ231-131800- Cape Cod Bay- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 5 to 8 ft. Wave Detail: E 8 ft at 10 seconds and NE 7 ft at 5 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 6 to 9 ft. Wave Detail: E 9 ft at 11 seconds and NE 7 ft at 6 seconds. Patchy fog. Rain in the morning, then showers in the afternoon. Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt, diminishing to 20 to 25 kt with gusts up to 30 kt after midnight. Seas 5 to 8 ft. Wave Detail: E 8 ft at 12 seconds and NE 6 ft at 6 seconds. Patchy fog. Showers with a chance of tstms. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and E 6 ft at 11 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt, becoming N 10 to 15 kt after midnight. Seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight. Wave Detail: E 6 ft at 10 seconds and N 5 ft at 5 seconds, becoming N 4 ft at 5 seconds and E 4 ft at 10 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED...N 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: E 4 ft at 10 seconds and N 3 ft at 5 seconds. A chance of showers in the afternoon. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .THU...N winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft. A chance of showers. .FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Winds and seas higher in and near tstms. 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. $$ ANZ254-131800- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH LATE TONIGHT... .REST OF TONIGHT...E winds 30 to 35 kt with gusts up to 45 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 11 seconds and E 8 ft at 8 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...E winds 30 to 35 kt, diminishing to 25 to 30 kt in the afternoon. Gusts up to 45 kt. Seas 12 to 16 ft. Wave Detail: E 16 ft at 11 seconds and NE 3 ft at 6 seconds. Patchy fog. Rain in the morning. Showers likely in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...E winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 11 to 15 ft. Wave Detail: E 15 ft at 11 seconds and NE 3 ft at 5 seconds. Patchy fog. Showers likely with a chance of tstms. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to 12 ft, subsiding to 7 to 10 ft in the afternoon. Wave Detail: SE 12 ft at 11 seconds and NE 2 ft at 5 seconds, becoming E 10 ft at 11 seconds and NE 2 ft at 5 seconds. Patchy fog. Showers. Vsby 1 NM or less. .TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. Wave Detail: E 9 ft at 10 seconds and N 3 ft at 5 seconds. Showers likely, mainly in the evening. Patchy fog in the evening with vsby 1 to 3 NM. .WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and N 3 ft at 5 seconds. A chance of showers in the afternoon. .WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Showers likely. .THU...N winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. Showers likely. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Showers likely. .FRI...N winds 25 to 30 kt with gusts up to 35 kt. Seas 7 to 10 ft. A chance of showers. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. Winds and seas higher in and near tstms. 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. $$ ANZ255-131800- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 104 AM EDT Mon Oct 13 2025 ...STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... .REST OF TONIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 12 to 16 ft. Wave Detail: E 15 ft at 12 seconds and NE 10 ft at 8 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 to 3 NM. .MON...E winds 30 to 40 kt with gusts up to 50 kt. Seas 12 to 16 ft. Wave Detail: E 15 ft at 12 seconds and E 9 ft at 9 seconds. Patchy fog. Rain in the morning. Showers likely with a chance of tstms in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...E winds 25 to 30 kt with gusts up to 35 kt. Seas 10 to 14 ft, subsiding to 8 to 11 ft after midnight. Wave Detail: E 13 ft at 11 seconds and NE 4 ft at 6 seconds, becoming E 11 ft at 11 seconds and NE 3 ft at 6 seconds. Patchy fog. Showers likely with a chance of tstms. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: S 9 ft at 10 seconds and E 9 ft at 11 seconds. Patchy fog. Showers. Vsby 1 NM or less. .TUE NIGHT...NE winds 20 to 25 kt, becoming N 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: E 8 ft at 10 seconds and N 6 ft at 6 seconds. Showers likely, mainly in the evening. Patchy fog in the evening with vsby 1 to 3 NM. .WED AND WED NIGHT...N winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft at 6 seconds and E 6 ft at 10 seconds. A chance of showers. .THU...N winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 8 ft. A chance of showers. .THU NIGHT AND FRI...N winds 30 to 35 kt, diminishing to 25 to 30 kt. Seas 6 to 9 ft. A chance of showers. .FRI NIGHT...N winds 20 to 25 kt. Seas 4 to 6 ft. Winds and seas higher in and near tstms. 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. $$ ANZ256-131800- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 104 AM EDT Mon Oct 13 2025 ...STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... .REST OF TONIGHT...NE winds 40 to 45 kt with gusts up to 50 kt. Seas 14 to 18 ft. Wave Detail: E 18 ft at 10 seconds and NE 5 ft at 6 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 to 3 NM. .MON...E winds 30 to 40 kt with gusts up to 50 kt. Seas 13 to 18 ft. Wave Detail: E 18 ft at 11 seconds and NE 4 ft at 6 seconds. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 11 to 15 ft, subsiding to 10 to 13 ft after midnight. Wave Detail: E 15 ft at 12 seconds and NE 3 ft at 6 seconds, becoming E 13 ft at 11 seconds and NE 4 ft at 6 seconds. Patchy fog. Showers. A chance of tstms in the evening. Vsby 1 NM or less. .TUE...NE winds 25 to 30 kt. Seas 8 to 11 ft. Wave Detail: E 11 ft at 11 seconds and SE 8 ft at 10 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 25 to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 7 to 10 ft. Wave Detail: E 8 ft at 10 seconds and N 6 ft at 6 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED...N winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and N 4 ft at 5 seconds. .WED NIGHT...N winds 25 to 30 kt. Seas 6 to 9 ft. A chance of showers. .THU...N winds 25 to 30 kt. Seas 5 to 8 ft. A chance of showers. .THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas 6 to 9 ft. A chance of showers. .FRI...N winds 25 to 30 kt. Seas 5 to 7 ft. .FRI NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. 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. $$ ANZ232-131800- Nantucket Sound- 104 AM EDT Mon Oct 13 2025 ...STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... .REST OF TONIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 7 to 10 ft. Wave Detail: E 8 ft at 6 seconds and E 6 ft at 9 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...E winds 30 to 40 kt with gusts up to 45 kt. Seas 7 to 10 ft. Wave Detail: E 7 ft at 6 seconds and E 7 ft at 9 seconds. Patchy fog. Rain in the morning. Showers with a chance of tstms in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt. Gusts up to 40 kt in the evening. Seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: E 6 ft at 6 seconds and E 6 ft at 11 seconds, becoming E 5 ft at 5 seconds and E 5 ft at 11 seconds. Patchy fog. Showers with a chance of tstms. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: NE 5 ft at 4 seconds and E 5 ft at 11 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt, becoming N 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 4 ft at 5 seconds and E 3 ft at 10 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and E 3 ft at 10 seconds. A chance of showers in the afternoon. .WED NIGHT...N winds 25 to 30 kt. Seas 3 to 5 ft. A chance of showers. .THU...N winds 25 to 30 kt with gusts up to 35 kt. Seas 3 to 5 ft. A chance of showers. .THU NIGHT AND FRI...N winds 25 to 35 kt. Seas 4 to 6 ft. A chance of showers. .FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms. 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. $$ ANZ233-131800- Vineyard Sound- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 6 to 9 ft. Wave Detail: E 6 ft at 9 seconds and NE 5 ft at 5 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt, becoming E 25 to 30 kt in the afternoon. Gusts up to 45 kt. Seas 6 to 9 ft. Wave Detail: NE 5 ft at 5 seconds and SE 5 ft at 12 seconds. Patchy fog. Rain in the morning. Showers with a chance of tstms in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 5 to 8 ft. Wave Detail: SE 5 ft at 11 seconds and NE 4 ft at 5 seconds. Patchy fog. Showers with a chance of tstms. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 4 ft at 11 seconds and N 3 ft at 5 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and SE 3 ft at 9 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED AND WED NIGHT...N winds 20 to 25 kt. Seas 2 to 4 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. .THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 20 to 25 kt, diminishing to 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. 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. $$ ANZ234-131800- Buzzards Bay- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and SE 6 ft at 12 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt, diminishing to 25 to 30 kt in the afternoon. Gusts up to 45 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and SE 6 ft at 12 seconds. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 5 seconds and SE 5 ft at 11 seconds. Patchy fog. Showers with a chance of tstms. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and N 3 ft at 5 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 3 ft at 9 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED AND WED NIGHT...N winds 20 to 25 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. .THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas around 3 ft. A chance of showers. .FRI AND FRI NIGHT...N winds 20 to 25 kt, becoming NW 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-131800- Rhode Island Sound- 104 AM EDT Mon Oct 13 2025 ...STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... .REST OF TONIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 9 to 13 ft. Wave Detail: SE 12 ft at 12 seconds and NE 7 ft at 6 seconds. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 30 to 40 kt, diminishing to 25 to 30 kt in the afternoon. Gusts up to 50 kt. Seas 9 to 13 ft. Wave Detail: SE 13 ft at 12 seconds and NE 7 ft at 6 seconds. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 8 to 11 ft. Wave Detail: SE 11 ft at 12 seconds and NE 6 ft at 6 seconds. Patchy fog. Showers with a chance of tstms. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: SE 7 ft at 11 seconds and SE 6 ft at 10 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 5 to 7 ft. Wave Detail: N 5 ft at 5 seconds and SE 5 ft at 10 seconds. Showers likely, mainly in the evening. Patchy fog in the evening. .WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 10 seconds and N 3 ft at 4 seconds. .WED NIGHT...N winds 20 to 25 kt. Seas 4 to 6 ft. A chance of showers. .THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers. .FRI...N winds 20 to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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. $$ ANZ237-131800- Block Island Sound- 104 AM EDT Mon Oct 13 2025 ...STORM WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING... .REST OF TONIGHT...NE winds 35 to 40 kt with gusts up to 50 kt. Seas 10 to 14 ft. Wave Detail: SE 13 ft at 11 seconds and NE 6 ft at 6 seconds. Patchy fog. Rain with isolated tstms. Vsby 1 to 3 NM. .MON...NE winds 30 to 35 kt, diminishing to 25 to 30 kt in the afternoon. Gusts up to 50 kt. Seas 10 to 14 ft. Wave Detail: E 14 ft at 11 seconds and NE 6 ft at 6 seconds. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 9 to 12 ft. Wave Detail: SE 12 ft at 12 seconds and NE 4 ft at 6 seconds. Patchy fog. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft. Wave Detail: SE 8 ft at 11 seconds and SE 5 ft at 10 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: SE 6 ft at 10 seconds and N 4 ft at 5 seconds. Showers likely, mainly in the evening. .WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and N 3 ft at 4 seconds. .WED NIGHT...N winds 20 to 25 kt. Seas 4 to 6 ft. .THU AND THU NIGHT...N winds 20 to 25 kt. Seas 3 to 5 ft. .FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. .FRI NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-131800- Boston Harbor- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .REST OF TONIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 40 kt. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 NM or less. .MON NIGHT...NE winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Waves 2 to 3 ft, except 5 to 7 ft at the outer harbor entrance. Patchy fog. Showers. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Patchy fog. Showers likely. Vsby 1 to 3 NM in the morning. .TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less. At the outer harbor entrance, waves 2 to 4 ft. A chance of showers. .WED...NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers after midnight. .THU THROUGH FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. 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. $$ ANZ236-131800- Narragansett Bay- 104 AM EDT Mon Oct 13 2025 ...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON... .REST OF TONIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Patchy fog. Rain. Vsby 1 to 3 NM. .MON...NE winds 25 to 30 kt with gusts up to 40 kt. Waves around 3 ft, except 5 to 8 ft at the bay entrance. Patchy fog. Rain in the morning. Showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves around 3 ft, except 5 to 7 ft at the bay entrance. Patchy fog. Showers. Vsby 1 NM or less. .TUE...NE winds 20 to 25 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 30 kt. Waves around 3 ft, except 4 to 6 ft at the bay entrance. Patchy fog. Showers likely. Vsby 1 to 3 NM. .TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to around 10 kt after midnight. Waves 2 to 3 ft. Showers likely, mainly in the evening. .WED AND WED NIGHT...N winds 15 to 20 kt. Waves 2 to 3 ft. .THU THROUGH FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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