Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 161446 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 1046 AM EDT Sat Sep 16 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-170330- 1046 AM EDT Sat Sep 16 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... A weak frontal system will remain over the waters for this weekend. Seas will build by early next week as Hurricane Jose slowly moves across the wrn Atlantic. It remains uncertain how close Jose will come to the coastal waters and its specific intensity. Mariners should monitor the latest forecasts from the National Hurricane Center at www.nhc.noaa.gov. 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. $$ ANZ250-170330- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...N winds around 5 kt, becoming E. Seas around 3 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Seas around 3 ft. Areas of dense fog. Vsby 1 NM or less. .SUN...SE winds 5 to 10 kt. Seas around 3 ft. Areas of dense fog in the morning with vsby 1 NM or less. .SUN NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 3 ft. Patchy fog. Vsby 1 NM or less after midnight. .MON...E winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...E winds around 10 kt with gusts up to 20 kt. Seas around 5 ft. A chance of showers. .TUE...Tropical storm conditions possible. Showers likely with a chance of tstms. Vsby 1 to 3 NM in the afternoon. .TUE NIGHT...Tropical storm conditions possible. Showers. A chance of tstms in the evening, then tstms likely after midnight. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas around 14 ft, subsiding to 11 ft after midnight. A chance of showers in the evening. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-170330- Massachusetts Bay and Ipswich Bay- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...NE winds around 5 kt, becoming E. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Seas around 2 ft. Areas of dense fog. Vsby 1 NM or less. .SUN...E winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas around 2 ft in the evening, then 1 foot or less. Patchy fog. Vsby 1 NM or less after midnight. .MON...E winds 5 to 10 kt. Seas around 2 ft. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...Tropical storm conditions possible. Gusts up to 25 kt. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .TUE NIGHT...Tropical storm conditions possible. Showers likely with a chance of tstms. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas around 9 ft, subsiding to 7 ft after midnight. 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. $$ ANZ231-170330- Cape Cod Bay- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...NE winds around 5 kt. Seas 1 foot or less. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Seas 1 foot or less. Areas of fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas 1 foot or less. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less after midnight. .MON...E winds 5 to 10 kt. Seas around 2 ft. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. .TUE...Tropical storm conditions possible. Showers likely with a chance of tstms. Vsby 1 to 3 NM in the afternoon. .TUE NIGHT...Tropical storm conditions possible. Showers. A chance of tstms in the evening, then tstms likely after midnight. .WED...Tropical storm conditions possible. Showers. Tstms likely in the morning, then a chance of tstms in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 7 ft. A chance of showers in the evening. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-170330- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1046 AM EDT Sat Sep 16 2017 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...NE winds around 5 kt. Seas 3 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt. Seas 4 to 5 ft. Areas of dense fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas around 5 ft. Areas of 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. .SUN NIGHT...E winds 5 to 10 kt. Seas around 6 ft. Patchy fog. Vsby 1 NM or less after midnight. .MON...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 6 to 7 ft. Patchy fog. Vsby 1 to 3 NM in the morning. .MON NIGHT...E winds 10 to 15 kt. Gusts up to 30 kt. Seas 9 to 10 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...Tropical storm conditions possible. Showers likely with a chance of tstms. .TUE NIGHT...Tropical storm conditions possible. Showers. A chance of tstms in the evening, then tstms likely after midnight. .WED...Tropical storm conditions possible. Showers. Tstms likely in the morning, then a chance of tstms in the afternoon. .WED NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas around 15 ft, subsiding to 12 ft after midnight. A chance of showers in the evening. 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. $$ ANZ255-170330- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1046 AM EDT Sat Sep 16 2017 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...E winds around 5 kt. Seas around 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...E winds around 5 kt. Seas around 5 ft. Areas of dense fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas around 6 ft. Areas of dense fog in the morning, then patchy fog in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon. .SUN NIGHT...E winds 5 to 10 kt. Seas around 7 ft. Patchy fog. Vsby 1 NM or less after midnight. .MON...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 8 to 9 ft. Patchy fog. A chance of showers in the afternoon. Vsby 1 to 3 NM. .MON NIGHT...E winds 10 to 15 kt with gusts up to 30 kt. Seas around 10 ft, building to 12 ft after midnight. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Patchy fog in the evening with vsby 1 to 3 NM. .TUE...Tropical storm conditions possible. Showers likely with a chance of tstms. .TUE NIGHT...Hurricane conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers with tstms likely in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas around 14 ft, subsiding to 11 ft after midnight. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ256-170330- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1046 AM EDT Sat Sep 16 2017 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...E winds around 5 kt. Seas around 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt. Seas 5 to 6 ft. Areas of dense fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas around 6 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas 7 to 8 ft. Patchy fog. Vsby 1 NM or less. .MON...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 8 to 9 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .MON NIGHT...NE winds 15 to 20 kt. Gusts up to 25 kt, increasing to 35 kt after midnight. Seas around 11 ft, building to 13 ft after midnight. Showers likely. A chance of tstms after midnight. Patchy fog in the evening. .TUE...Tropical storm conditions possible. A chance of tstms. Showers likely. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas around 10 ft, subsiding to 7 ft after midnight. 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. $$ ANZ232-170330- Nantucket Sound- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...E winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt. Seas around 2 ft in the evening, then 1 foot or less. Patchy fog in the evening, then areas of dense fog after midnight. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 3 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .MON...NE winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas around 4 ft. Patchy fog. Vsby 1 to 3 NM in the morning. .MON NIGHT...E winds 10 to 15 kt. Gusts up to 30 kt. Seas 5 to 6 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Patchy fog in the evening. .TUE...Tropical storm conditions possible. Showers likely with a chance of tstms. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers. Tstms likely in the morning, then a chance of tstms in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas around 6 ft, subsiding to 4 ft after midnight. A chance of showers in the evening. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-170330- Vineyard Sound- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less. .SUN...E winds 5 to 10 kt. Seas around 3 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 4 ft. Patchy fog. Vsby 1 to 3 NM. .MON...NE winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 4 to 5 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .MON NIGHT...NE winds 10 to 15 kt. Gusts up to 30 kt. Seas 5 to 6 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Patchy fog in the evening. .TUE...Tropical storm conditions possible. A chance of tstms. Showers likely. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers with tstms likely in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 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. $$ ANZ234-170330- Buzzards Bay- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas around 2 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Seas around 2 ft in the evening, then 1 foot or less. Areas of fog. Vsby 1 NM or less. .SUN...E winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 3 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .MON...NE winds 5 to 10 kt. Seas around 3 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .MON NIGHT...NE winds around 10 kt with gusts up to 25 kt. Seas around 4 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight. Patchy fog in the evening. .TUE...Tropical storm conditions possible. A chance of tstms. Showers likely. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers with tstms likely in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-170330- Rhode Island Sound- 1046 AM EDT Sat Sep 16 2017 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...SE winds around 5 kt. Seas 3 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Seas 4 to 5 ft. Areas of fog. Vsby 1 NM or less. .SUN...E winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 6 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 6 ft. Patchy fog. Vsby 1 to 3 NM. .MON...NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 7 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 30 kt. Seas around 8 ft, building to 10 ft after midnight. Showers likely. A chance of tstms after midnight. Patchy fog in the evening. .TUE...Tropical storm conditions possible. A chance of tstms. Showers likely. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 25 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. $$ ANZ237-170330- Block Island Sound- 1046 AM EDT Sat Sep 16 2017 ...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY AFTERNOON... .THIS AFTERNOON...SE winds around 5 kt. Seas 3 to 4 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 4 to 5 ft. Areas of fog. Vsby 1 NM or less. .SUN...E winds around 5 kt, becoming SE in the afternoon. Seas 5 to 6 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds 5 to 10 kt. Seas around 6 ft. Patchy fog. Vsby 1 NM or less. .MON...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 6 to 7 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 NM or less in the morning. .MON NIGHT...NE winds 10 to 15 kt with gusts up to 30 kt. Seas around 8 ft, building to 10 ft after midnight. Showers likely. Patchy fog in the evening. .TUE...Tropical storm conditions possible. A chance of tstms. Showers likely. .TUE NIGHT...Tropical storm conditions possible. Showers likely with a chance of tstms. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-170330- Boston Harbor- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...E winds around 5 kt. Waves 1 foot or less. Patchy fog. Vsby 1 NM or less. .TONIGHT...SE winds around 5 kt. Waves 1 foot or less. Areas of fog. Vsby 1 NM or less. .SUN...E winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 1 foot or less. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds around 5 kt. Waves 1 foot or less. Patchy fog after midnight with vsby 1 to 3 NM. .MON...E winds around 5 kt. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM. .MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves 1 foot or less, then around 2 ft after midnight. A chance of showers. Patchy fog in the evening. .TUE...NE winds 5 to 10 kt with gusts up to 25 kt. Waves around 3 ft. Showers likely with a chance of tstms. Vsby 1 to 3 NM in the afternoon. .TUE NIGHT...Tropical storm conditions possible. Showers likely with a chance of tstms. Vsby 1 to 3 NM. .WED...Tropical storm conditions possible. Waves around 7 ft at the outer harbor entrance. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .WED NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. At the outer harbor entrance, waves around 6 ft, subsiding to 4 ft after midnight. Winds and waves 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. $$ ANZ236-170330- Narragansett Bay- 1046 AM EDT Sat Sep 16 2017 .THIS AFTERNOON...NE winds around 5 kt, becoming SE. Waves around 2 ft. Patchy fog. Vsby 1 NM or less. .TONIGHT...S winds around 5 kt. Waves around 2 ft. Areas of fog after midnight with vsby 1 NM or less. .SUN...E winds around 5 kt, becoming SE in the afternoon. Waves around 3 ft. Areas of fog in the morning with vsby 1 NM or less. .SUN NIGHT...E winds around 5 kt. Waves around 3 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .MON...E winds 5 to 10 kt. Waves around 3 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in the morning. .MON NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Waves around 3 ft, except 6 to 7 ft at the bay entrance. A chance of showers in the evening, then showers likely after midnight. .TUE...Tropical storm conditions possible. Waves 8 to 9 ft at the bay entrance. Showers likely with a chance of tstms. Vsby 1 to 3 NM in the afternoon. .TUE NIGHT...Tropical storm conditions possible. Showers with tstms likely. .WED...Tropical storm conditions possible. Showers likely with a chance of tstms in the morning, then a chance of showers in the afternoon. .WED NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

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