Coastal Waters Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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389 FZUS51 KBOX 061404 CWFBOX Coastal Waters Forecast for Massachusetts and Rhode Island National Weather Service Boston/Norton MA 1004 AM EDT Sun Oct 6 2024 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-070300- 1004 AM EDT Sun Oct 6 2024 .Synopsis for Massachusetts and Rhode Island coastal waters... A brief ridge of high pressure today will move east of the waters tonight. This will be followed by a cold frontal passage late Monday. An expansive high pressure gradually builds into our region from the west for the remainder of the work week. Breezy northwest flow continues Tue through much of the week ahead along with large swells kicked up by a very distant Hurricane Kirk in the Atlantic. $$ ANZ250-070300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1004 AM EDT Sun Oct 6 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... .THIS AFTERNOON...N winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 15 seconds and NE 3 ft at 5 seconds. .TONIGHT...E winds around 5 kt, becoming S after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 15 seconds and NE 3 ft at 5 seconds. .MON...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 16 seconds and S 1 foot at 3 seconds. Showers. Patchy fog in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 15 seconds and E 2 ft at 8 seconds. Patchy fog in the evening. Showers likely in the evening. .TUE AND TUE NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 14 seconds and E 5 ft at 12 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 12 seconds and NW 3 ft at 4 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-070300- Massachusetts Bay and Ipswich Bay- 1004 AM EDT Sun Oct 6 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY MORNING... .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and E 2 ft at 9 seconds. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 16 seconds and NE 3 ft at 6 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 17 seconds and SE 2 ft at 4 seconds. Patchy fog. Showers. Vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 4 to 5 ft. Wave Detail: E 5 ft at 16 seconds and E 3 ft at 10 seconds. Patchy fog in the evening. A chance of showers in the evening. .TUE AND TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds and E 5 ft at 15 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and N 2 ft at 3 seconds. 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. $$ ANZ231-070300- Cape Cod Bay- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 9 seconds. .TONIGHT...SE winds around 5 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 15 seconds and N 2 ft at 5 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 16 seconds and S 1 foot at 2 seconds. Showers. Patchy fog in the afternoon with vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 16 seconds and E 2 ft at 9 seconds. Patchy fog in the evening. A chance of showers in the evening. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 12 seconds and E 4 ft at 15 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 3 ft at 12 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-070300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1004 AM EDT Sun Oct 6 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... .THIS AFTERNOON...N winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 15 seconds and NE 3 ft at 6 seconds. .TONIGHT...E winds around 5 kt, becoming S after midnight. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 15 seconds and NE 3 ft at 6 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 16 seconds and NE 2 ft at 5 seconds. A chance of showers in the morning, then showers in the afternoon. Patchy fog in the afternoon with vsby 1 to 3 NM. .MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W after midnight. Seas 5 to 7 ft. Wave Detail: SE 7 ft at 15 seconds and S 2 ft at 5 seconds. Patchy fog in the evening. Showers likely in the evening. .TUE...NW winds around 10 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft at 13 seconds and W 2 ft at 6 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 13 seconds and E 3 ft at 13 seconds. .WED THROUGH THU 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. $$ ANZ255-070300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1004 AM EDT Sun Oct 6 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING... .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 9 seconds and SE 3 ft at 15 seconds. .TONIGHT...E winds around 5 kt, becoming S after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 17 seconds and NE 2 ft at 6 seconds. .MON...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 16 seconds and S 4 ft at 5 seconds. A chance of showers in the morning, then showers in the afternoon. Patchy fog in the afternoon. .MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW after midnight. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 16 seconds and SW 4 ft at 6 seconds. Patchy fog in the evening. A chance of showers in the evening. .TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 14 seconds and W 4 ft at 6 seconds. .TUE NIGHT...W winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 13 seconds and W 2 ft at 6 seconds. .WED THROUGH THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-070300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1004 AM EDT Sun Oct 6 2024 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SE 3 ft at 15 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 16 seconds and E 3 ft at 9 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 16 seconds and S 4 ft at 6 seconds. Showers. Patchy fog in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 15 seconds and SW 4 ft at 6 seconds. A chance of showers in the evening. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 14 seconds and W 4 ft at 6 seconds. .WED THROUGH THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 4 ft at 12 seconds. 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. $$ ANZ232-070300- Nantucket Sound- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and E 1 foot at 9 seconds. .TONIGHT...E winds around 5 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and E 2 ft at 15 seconds. .MON...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 16 seconds. Showers. Patchy fog in the afternoon with vsby 1 to 3 NM. .MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 16 seconds. Patchy fog in the evening. A chance of showers in the evening. .TUE AND TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 14 seconds and W 2 ft at 4 seconds. .WED THROUGH THU NIGHT...NW winds 15 to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 5 seconds and E 2 ft at 12 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-070300- Vineyard Sound- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds around 10 kt, diminishing to around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and N 1 foot at 3 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SE 2 ft at 17 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 17 seconds. Showers. Patchy fog in the afternoon with vsby 1 to 3 NM. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and SE 2 ft at 16 seconds. A chance of showers in the evening. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 5 seconds and E 2 ft at 14 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 1 foot at 12 seconds. 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. $$ ANZ234-070300- Buzzards Bay- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 2 ft at 16 seconds. .TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 16 seconds and NE 1 foot at 2 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 16 seconds and S 2 ft at 4 seconds. Showers. Patchy fog in the afternoon with vsby 1 to 3 NM. .MON NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 16 seconds and SW 2 ft at 6 seconds. A chance of showers in the evening. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 12 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 12 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-070300- Rhode Island Sound- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming E. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and SE 2 ft at 16 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 17 seconds and SE 2 ft at 9 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 16 seconds and SE 4 ft at 5 seconds. Showers. Patchy fog in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 16 seconds and S 4 ft at 5 seconds. A chance of showers in the evening. .TUE AND TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 3 ft at 14 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 12 seconds. 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. $$ ANZ237-070300- Block Island Sound- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds 5 to 10 kt, becoming SE. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and SE 2 ft at 15 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 16 seconds and SE 2 ft at 9 seconds. .MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 16 seconds and SW 3 ft at 5 seconds. Showers. Patchy fog in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 16 seconds and SW 3 ft at 6 seconds. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 14 seconds and W 2 ft at 6 seconds. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at 12 seconds. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-070300- Boston Harbor- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds 5 to 10 kt. Waves 1 foot or less. .TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. .MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. Patchy fog in the evening. A chance of showers in the evening. .TUE AND TUE NIGHT...W winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. .WED THROUGH THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ236-070300- Narragansett Bay- 1004 AM EDT Sun Oct 6 2024 .THIS AFTERNOON...NE winds around 5 kt, becoming SE around 5 kt. Waves around 2 ft. .TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. .MON...S winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .MON NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers in the evening. .TUE AND TUE NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. .WED THROUGH THU NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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