Coastal Waters Forecast
Issued by NWS Boston, MA

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000 FZUS51 KBOX 182101 CWFBOX Coastal Waters Forecast National Weather Service Taunton MA 501 PM EDT Mon Sep 18 2017 COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM ANZ200-190930- 501 PM EDT Mon Sep 18 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... Seas will continue to build as Hurricane Jose slowly moves north. Although Hurricane Jose is expected to weaken to a Tropical Storm early Wednesday, mariners can expect the highest winds and heavier rain bands across the waters off the south coast through at least mid week. 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. $$ ANZ250-190930- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt. Seas 4 to 5 ft. Patchy dense fog. A chance of showers after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 10 to 15 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas around 6 ft, building to 8 ft in the afternoon. Patchy fog. Rain likely. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions possible. NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 12 ft, building to 14 ft after midnight. Patchy fog. Rain likely. Vsby 1 NM or less. .WED...Tropical storm conditions expected. NE winds 25 to 35 kt with gusts up to 50 kt. Seas around 17 ft, building to 19 ft in the afternoon. Rain in the morning. Showers likely in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM, increasing to 1 NM or less in the afternoon. .WED NIGHT...Tropical storm conditions possible. NE winds 25 to 30 kt with gusts up to 50 kt. Seas around 18 ft, subsiding to 16 ft after midnight. A chance of showers. Vsby 1 to 3 NM in the evening. .THU...Tropical storm conditions possible. A chance of showers in the morning. .THU NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas around 13 ft. .FRI...NE winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 12 to 13 ft. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas around 11 ft, subsiding to 9 ft after midnight. .SAT...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 6 to 7 ft. .SAT NIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ251-190930- Massachusetts Bay and Ipswich Bay- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt. Seas around 3 ft. Patchy fog this evening, then patchy dense fog after midnight. A slight chance of showers after midnight. Vsby 1 NM or less. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 4 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions possible. NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas around 9 ft, building to 11 ft after midnight. Patchy fog. Rain likely. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .WED...Tropical storm conditions expected. NE winds 25 to 30 kt with gusts up to 45 kt. Seas around 14 ft. Showers. Patchy fog in the morning. Vsby 1 NM or less. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas around 13 ft, subsiding to 10 ft after midnight. A chance of showers. Vsby 1 to 3 NM in the evening. .THU...Tropical storm conditions possible. A chance of showers in the morning. .THU NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 35 kt. Seas 8 to 9 ft. .FRI...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 8 to 9 ft. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 6 to 7 ft. .SAT...NE winds 5 to 10 kt. Seas 4 to 5 ft. .SAT NIGHT...E winds around 5 kt, becoming N after midnight. Seas around 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. $$ ANZ231-190930- Cape Cod Bay- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Patchy dense fog. Rain after midnight. Vsby 1 NM or less. .TUE...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. E winds around 20 kt, becoming NE 25 to 30 kt after midnight. Seas 6 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. NE winds 25 to 35 kt with gusts up to 50 kt. Seas around 11 ft, building to 13 ft in the afternoon. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 NM or less. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 30 kt with gusts up to 50 kt. Seas 10 to 11 ft. Showers likely. Vsby 1 to 3 NM. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...NE winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 7 to 8 ft. A chance of showers in the morning. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 5 to 6 ft. .SAT...NE winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 3 to 4 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ254-190930- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 7 to 8 ft. S and E of Nantucket, seas around 10 ft, building to 12 ft after midnight. Patchy dense fog. Rain likely after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 15 to 20 kt, becoming E 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 10 to 11 ft. S and E of Nantucket, seas around 13 ft, building to 15 ft in the afternoon. Patchy fog. Rain likely. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. E winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Gusts up to 45 kt. Seas around 14 ft, building to 17 ft after midnight. S and E of Nantucket, seas around 20 ft, building to 25 ft after midnight. Patchy fog. Rain likely in the evening. Rain after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. NE winds 30 to 35 kt with gusts up to 50 kt. Seas around 21 ft, building to 23 ft in the afternoon. S and E of Nantucket, seas 27 to 28 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 NM or less. .WED NIGHT...Tropical storm conditions possible. NE winds 30 to 35 kt with gusts up to 50 kt. Seas around 22 ft, subsiding to 19 ft after midnight. Showers. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...Tropical storm conditions possible. A chance of showers. .FRI NIGHT...Tropical storm conditions possible. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 7 to 8 ft. .SAT NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 5 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. $$ ANZ255-190930- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds around 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas around 9 ft, building to 11 ft after midnight. Patchy fog this evening, then patchy dense fog after midnight. Rain likely after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 20 to 25 kt with gusts up to 30 kt, becoming E 25 to 30 kt with gusts up to 40 kt in the afternoon. Seas around 12 ft, building to 14 ft in the afternoon. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. E winds 25 to 35 kt. Gusts up to 40 kt, increasing to 50 kt after midnight. Seas around 19 ft, building to 23 ft after midnight. Patchy fog. Rain likely in the evening. Rain after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. NE winds 30 to 40 kt with gusts up to 50 kt. Seas around 25 ft, subsiding to 23 ft in the afternoon. S and E of Nantucket, seas 27 to 28 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 NM or less. .WED NIGHT...Tropical storm conditions possible. NE winds 30 to 40 kt, becoming N 25 to 35 kt after midnight. Gusts up to 50 kt. Seas around 20 ft, subsiding to 15 ft after midnight. S and E of Nantucket, seas around 25 ft, subsiding to 20 ft after midnight. Showers likely. Vsby 1 to 3 NM. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. Showers likely, mainly in the evening. .FRI...Tropical storm conditions possible. A chance of showers. .FRI NIGHT...Tropical storm conditions possible. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 7 ft. .SAT NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 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. $$ ANZ256-190930- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE 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 around 10 ft, building to 12 ft after midnight. Patchy fog. Rain after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 20 to 25 kt, increasing to 25 to 30 kt in the afternoon. Gusts up to 40 kt. Seas 14 to 15 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds 25 to 35 kt with gusts up to 50 kt. Seas around 20 ft, building to 23 ft after midnight. Patchy fog. Rain. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. NE winds 30 to 35 kt, becoming N 25 to 35 kt in the afternoon. Gusts up to 55 kt, decreasing to 50 kt in the afternoon. Seas 22 to 23 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 35 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas around 16 ft, subsiding to 10 ft after midnight. A chance of showers. Vsby 1 to 3 NM in the evening. .THU...Tropical storm conditions possible. A chance of showers in the morning. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...Tropical storm conditions possible. .FRI NIGHT...NE winds 25 to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 6 to 7 ft. .SAT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft. .SAT NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 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. $$ ANZ232-190930- Nantucket Sound- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 3 ft. Patchy dense fog. Rain likely after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 15 to 20 kt, becoming E 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 4 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. E winds 20 to 25 kt, becoming NE 25 to 30 kt after midnight. Gusts up to 45 kt. Seas around 6 ft, building to 8 ft after midnight. Patchy fog. Rain likely in the evening. Rain after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. NE winds 25 to 35 kt, becoming 30 to 35 kt in the afternoon. Gusts up to 50 kt. Seas around 10 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 35 kt with gusts up to 50 kt. Seas around 10 ft, subsiding to 8 ft after midnight. Showers likely. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...Tropical storm conditions possible. A chance of showers. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 5 ft. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. .SAT NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ233-190930- Vineyard Sound- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 6 ft. Patchy fog this evening, then patchy dense fog after midnight. Rain after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 6 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds around 20 kt, increasing to 25 to 30 kt after midnight. Gusts up to 40 kt. Seas around 8 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...Tropical storm conditions expected. NE winds 25 to 30 kt with gusts up to 45 kt. Seas 7 to 8 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas around 7 ft, subsiding to 5 ft after midnight. Showers likely, mainly in the evening with vsby 1 to 3 NM. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...NE winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 6 ft. A chance of showers in the morning. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 5 ft. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas 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. $$ ANZ234-190930- Buzzards Bay- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog this evening, then patchy dense fog after midnight. Rain after midnight. Vsby 1 NM or less. .TUE...NE winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 5 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds 15 to 20 kt with gusts up to 30 kt, increasing to 25 to 30 kt with gusts up to 40 kt after midnight. Seas 6 to 7 ft. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...Tropical storm conditions expected. NE winds 25 to 30 kt with gusts up to 45 kt. Seas around 7 ft. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon. .WED NIGHT...Tropical storm conditions possible. N winds 20 to 25 kt with gusts up to 40 kt. Seas 6 to 7 ft. Showers likely, mainly in the evening with vsby 1 to 3 NM. .THU...Tropical storm conditions possible. A chance of showers. .THU NIGHT...Tropical storm conditions possible. A chance of showers. .FRI...NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 5 ft. A chance of showers in the morning. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas around 4 ft, subsiding to 2 ft after midnight. .SAT...NE winds around 10 kt. Gusts up to 20 kt in the morning. Seas around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ235-190930- Rhode Island Sound- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Seas around 8 ft, building to 10 ft after midnight. Patchy fog. Rain after midnight. Vsby 1 NM or less. .TUE...Tropical storm conditions possible. NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 10 ft, building to 12 ft in the afternoon. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds 20 to 25 kt with gusts up to 35 kt, increasing to 30 to 35 kt with gusts up to 45 kt after midnight. Seas around 16 ft, building to 18 ft after midnight. Patchy fog. Rain. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .WED...Tropical storm conditions expected. N winds 25 to 35 kt with gusts up to 50 kt. Seas around 18 ft, subsiding to 15 ft in the afternoon. Rain in the morning. Showers in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 25 to 30 kt, diminishing to 20 to 25 kt after midnight. Gusts up to 45 kt. Seas around 10 ft, subsiding to 6 ft after midnight. A chance of showers. Vsby 1 to 3 NM in the evening. .THU...Tropical storm conditions possible. A chance of showers in the morning. .THU NIGHT...Tropical storm conditions possible. .FRI...N winds 25 to 30 kt, becoming NE 20 to 25 kt in the afternoon. Seas around 5 ft. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 4 ft. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 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. $$ ANZ237-190930- Block Island Sound- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas around 8 ft, building to 10 ft after midnight. Patchy fog. Rain likely after midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight. .TUE...Tropical storm conditions possible. NE winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt, increasing to 40 kt in the afternoon. Seas 11 to 12 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Gusts up to 45 kt. Seas around 16 ft, building to 18 ft after midnight. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...Tropical storm conditions expected. N winds 25 to 35 kt with gusts up to 50 kt. Seas around 17 ft, subsiding to 14 ft in the afternoon. Rain in the morning. Showers likely in the afternoon. Patchy fog in the morning with vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 20 to 25 kt with gusts up to 40 kt, diminishing to 15 to 20 kt with gusts up to 30 kt after midnight. Seas around 10 ft, subsiding to 5 ft after midnight. A chance of showers. .THU...N winds 15 to 20 kt with gusts up to 30 kt. Seas around 3 ft. A chance of showers in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 4 ft. .FRI...NE winds 20 to 25 kt with gusts up to 35 kt. Seas around 4 ft. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 3 to 4 ft. .SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas around 3 ft. .SAT NIGHT...NE winds 5 to 10 kt. Seas around 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ ANZ230-190930- Boston Harbor- 501 PM EDT Mon Sep 18 2017 ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH LATE WEDNESDAY NIGHT... .TONIGHT...NE winds around 5 kt. Waves 1 foot or less. Patchy fog this evening, then patchy dense fog after midnight. A slight chance of showers after midnight. Vsby 1 NM or less. .TUE...NE winds 5 to 10 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves around 3 ft. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft. At the outer harbor entrance, waves around 8 ft, building to 10 ft after midnight. Patchy fog. Rain likely. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. .WED...Tropical storm conditions possible. NE winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 3 ft, except 11 to 12 ft at the outer harbor entrance. Rain likely in the morning, then showers likely in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon. .WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. At the outer harbor entrance, waves around 9 ft, subsiding to 6 ft after midnight. A chance of showers. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 3 ft, except up to 5 ft at the outer harbor entrance. A chance of showers in the morning. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 30 kt. Waves around 3 ft, except up to 6 ft at the outer harbor entrance. .FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Waves around 3 ft, except up to 6 ft at the outer harbor entrance. .FRI NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, becoming N around 5 kt after midnight. Waves around 3 ft in the evening, then 1 foot or less. At the outer harbor entrance, waves 4 to 5 ft. .SAT...NE winds around 5 kt. Waves 1 foot or less. .SAT NIGHT...E winds around 5 kt, becoming N after midnight. 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. $$ ANZ236-190930- Narragansett Bay- 501 PM EDT Mon Sep 18 2017 ...TROPICAL STORM WARNING IN EFFECT... .TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 3 ft. At the bay entrance, waves around 7 ft, building to 9 ft after midnight. Patchy fog. Rain likely after midnight. Vsby 1 NM or less. .TUE...NE winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft, except 9 to 10 ft at the bay entrance. Patchy fog. Rain. Vsby 1 NM or less. .TUE NIGHT...Tropical storm conditions expected. NE winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 35 kt. Waves around 3 ft, except 13 to 14 ft at the bay entrance. Patchy fog. Rain. Vsby 1 to 3 NM. .WED...Tropical storm conditions expected. N winds 20 to 25 kt with gusts up to 40 kt. Waves around 3 ft. At the bay entrance, waves around 14 ft, subsiding to 11 ft in the afternoon. Rain in the morning. Showers likely in the afternoon. Patchy fog in the morning. Vsby 1 to 3 NM. .WED NIGHT...Tropical storm conditions possible. N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt. Waves around 3 ft. At the bay entrance, waves around 7 ft, subsiding to 4 ft after midnight. A chance of showers. .THU...N winds 10 to 15 kt with gusts up to 30 kt. Waves around 3 ft. A chance of showers in the morning. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft. .FRI...NE winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft. .FRI NIGHT...NE winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Waves 2 to 3 ft. .SAT...NE winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$ 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

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