Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000 FZUS51 KBOX 261116 CWFBOX Coastal Waters Forecast National Weather Service Boston/Norton MA 716 AM EDT Thu Apr 26 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-270000- 716 AM EDT Thu Apr 26 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Low pressure lifts across New England this morning. Another low will approach from the southwest on Friday resulting in showers across the waters Friday evening, before it lifts over New England Friday night. A cold front will cross the waters late Saturday with a few showers possible. Dry high pressure will build in from the west Saturday night and Sunday. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$ ANZ250-270000- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 4 to 7 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .FRI...SW winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-270000- Massachusetts Bay and Ipswich Bay- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 4 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...SW winds around 5 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Showers likely. Vsby 1 NM or less. .FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. A chance of showers. .SUN...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 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. $$ ANZ231-270000- Cape Cod Bay- 716 AM EDT Thu Apr 26 2018 .TODAY...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Showers likely. .FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. A chance of showers. .SUN...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 to 2 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas 1 to 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas 1 to 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-270000- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. .FRI...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. A chance of showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers likely. Vsby 1 NM or less. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 5 to 10 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. $$ ANZ255-270000- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to 10 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 8 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 3 to 5 ft. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-270000- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 8 to 11 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 6 to 9 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers. .SUN NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON NIGHT...W 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. $$ ANZ232-270000- Nantucket Sound- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt. Seas around 2 ft. Showers likely. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-270000- Vineyard Sound- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 10 to 15 kt. Gusts up to 20 kt this afternoon. Seas 3 to 5 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds around 10 kt with gusts up to 20 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. $$ ANZ234-270000- Buzzards Bay- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 2 to 4 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-270000- Rhode Island Sound- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...SW winds 10 to 15 kt. Gusts up to 25 kt this afternoon. Seas 6 to 9 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...SW winds 10 to 15 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Seas 4 to 7 ft. .FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. A chance of showers. Vsby 1 NM or less. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 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. $$ ANZ237-270000- Block Island Sound- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt this afternoon. Seas 5 to 8 ft. Areas of fog this morning. A chance of showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. .FRI...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 3 to 5 ft. Patchy fog. Showers. Vsby 1 to 3 NM. .FRI NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers. .SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-270000- Boston Harbor- 716 AM EDT Thu Apr 26 2018 .TODAY...SW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts up to 25 kt this afternoon. Waves around 2 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. .FRI...S winds around 5 kt, becoming SE with gusts up to 20 kt in the afternoon. Waves around 2 ft. Showers likely. Vsby 1 to 3 NM. .FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves around 2 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers. .SUN...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .MON...NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. .MON NIGHT...NW winds around 5 kt. Waves 1 foot or less. 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. $$ ANZ236-270000- Narragansett Bay- 716 AM EDT Thu Apr 26 2018 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Waves 2 to 4 ft. Areas of fog this morning. Showers this morning with vsby 1 NM or less. .TONIGHT...W winds 10 to 15 kt, diminishing to around 5 kt after midnight. Waves 2 to 3 ft. .FRI...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. Showers. Vsby 1 NM or less. .FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less. .SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM. .SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. A chance of showers. .SUN...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of showers. .SUN NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .MON...W winds around 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. .MON NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.