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 190017 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 716 PM EST Thu Jan 18 2018 Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM ANZ200-191300- 716 PM EST Thu Jan 18 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Large high pres will build S of the waters through this weekend. Low pressure will pass well W of the region late Monday, but its associated front will likely bring periods of rain and gusty southerly winds. 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. $$ ANZ250-191300- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. Vsby 1 to 3 NM. .TUE...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-191300- Massachusetts Bay and Ipswich Bay- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 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. $$ ANZ231-191300- Cape Cod Bay- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas around 2 ft. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-191300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 716 PM EST Thu Jan 18 2018 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 6 AM EST FRIDAY... .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt this evening. Seas 3 to 5 ft. .FRI...W winds 5 to 10 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 7 ft. .SAT NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. .SUN...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Seas 2 to 3 ft. .MON...E winds 5 to 10 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain likely. .TUE...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. A chance of showers. 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. $$ ANZ255-191300- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 716 PM EST Thu Jan 18 2018 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 6 AM EST FRIDAY... .TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 4 to 7 ft. .SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. .SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. .SUN...W winds 5 to 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. .MON...E winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-191300- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 716 PM EST Thu Jan 18 2018 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 6 AM EST FRIDAY... .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 4 to 7 ft. .SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 7 to 10 ft. .SAT NIGHT...W 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 4 to 7 ft. .SUN...W winds 5 to 10 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Rain likely. .TUE...S winds around 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Showers. .TUE NIGHT...W winds around 20 kt with gusts up to 30 kt. Seas 6 to 9 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. $$ ANZ232-191300- Nantucket Sound- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt this evening. Seas 2 to 3 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. .SAT NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds around 5 kt, becoming N after midnight. Seas around 2 ft. .MON...E winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-191300- Vineyard Sound- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt this evening. Seas around 2 ft. .FRI...W winds 5 to 10 kt. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt, increasing to 30 kt after midnight. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. .SAT NIGHT...W winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 2 to 4 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .MON...E winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of rain. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 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. $$ ANZ234-191300- Buzzards Bay- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. .FRI...W winds 5 to 10 kt. Seas around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. .SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. .SUN...W winds 5 to 10 kt. Seas around 2 ft. .SUN NIGHT...NW winds around 5 kt, becoming N after midnight. Seas 1 foot or less. .MON...E winds 5 to 10 kt. Seas around 2 ft. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain likely. Vsby 1 to 3 NM. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Showers. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-191300- Rhode Island Sound- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...SW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft. .SAT NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 4 to 7 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Rain likely. .TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 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. $$ ANZ237-191300- Block Island Sound- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. .FRI...W winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. .SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. .SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. .SUN...W winds 5 to 10 kt. Seas 2 to 4 ft. .SUN NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas around 2 ft. .MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain. .TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-191300- Boston Harbor- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves 1 foot or less. .FRI NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. .SAT...SW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Gusts up to 20 kt. Waves around 2 ft. .SAT NIGHT...W winds 5 to 10 kt. Waves around 2 ft. .SUN...W winds around 5 kt. Waves 1 foot or less. .SUN NIGHT...NW winds around 5 kt, becoming N after midnight. Waves 1 foot or less. .MON...E winds 5 to 10 kt. Waves 1 foot or less. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft. Rain. Vsby 1 to 3 NM. .TUE...S winds around 10 kt with gusts up to 20 kt. Waves around 2 ft. Showers. .TUE NIGHT...W winds around 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. $$ ANZ236-191300- Narragansett Bay- 716 PM EST Thu Jan 18 2018 .TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft. .FRI...W winds 5 to 10 kt. Waves around 2 ft. .FRI NIGHT...W winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .SAT...SW winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 4 ft. .SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 4 ft. .SUN...W winds 5 to 10 kt. Waves 2 to 3 ft. .SUN NIGHT...NW winds around 5 kt, becoming N after midnight. Waves around 2 ft. .MON...E winds 5 to 10 kt. Waves around 2 ft. A chance of rain. Vsby 1 to 3 NM. .MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Rain. .TUE...S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

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