Coastal Waters Forecast
Issued by NWS Boston, MA

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059
FZUS51 KBOX 180617
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
117 AM EST Mon Dec 18 2017

Coastal waters from the Merrimack River MA to Watch Hill RI out to
25 NM

ANZ200-181900-
117 AM EST Mon Dec 18 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front approaches tonight, then lifts north across the  waters
Mon. A cold front will sweep across New England and the  coastal
waters Tue night followed by gusty winds Wed. High pres  builds
across the waters Thu. Another warm front lifts north into New Eng
Fri as strong low pres moves into the Gt Lakes.

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.

$$

ANZ250-181900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NW winds around 5 kt. Seas 1 foot or less. A
slight chance of light snow.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of light
rain and light snow. Vsby 1 to 3 NM.
.MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of light rain. Vsby 1 NM or less.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW
15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to
4 ft.
.TUE NIGHT...W winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Gusts up to 35 kt. Seas 4 to 7 ft.
.WED...W winds 20 to 25 kt, becoming NW 15 to 20 kt in the
afternoon. Gusts up to 35 kt. Seas 4 to 7 ft.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.THU NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft. A chance of rain.

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.

$$

ANZ251-181900-
Massachusetts Bay and Ipswich Bay-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NW winds around 5 kt. Seas 1 foot or less. A
chance of light snow.
.MON...SW winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. A chance of light snow and light rain. Vsby 1 to
3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 1 foot or less. Patchy fog. A chance of light rain.
Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas 2 to 3 ft.
.TUE NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Seas
around 3 ft.
.WED...W winds 15 to 20 kt with gusts up to 35 kt. Seas around
3 ft.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.THU NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.FRI...SE winds 5 to 10 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft. Rain likely.

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.

$$

ANZ231-181900-
Cape Cod Bay-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NW winds around 5 kt. Seas 1 foot or less. A
slight chance of light snow.
.MON...S winds around 5 kt. Seas 1 foot or less. A chance of
light snow.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 30 kt in the afternoon. Seas 2 to 4 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
3 to 5 ft.
.WED...W winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 1 to
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft. A chance of rain.

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.

$$

ANZ254-181900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NW winds around 5 kt. Seas around 2 ft. A
slight chance of light snow.
.MON...S winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas around 2 ft. A chance of light snow.
.MON NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.TUE...SW winds 10 to 15 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas 2 to 4 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 7 ft.
.WED...NW winds 15 to 20 kt with gusts up to 35 kt. Seas 5 to
8 ft.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
5 to 8 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.THU NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of rain.

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.

$$

ANZ255-181900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas around 2 ft. A
slight chance of light snow.
.MON...SE winds 5 to 10 kt. Seas around 2 ft. A chance of light
snow.
.MON NIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft.
.TUE...W 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
7 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
6 to 9 ft.
.WED...NW winds 15 to 20 kt with gusts up to 35 kt. Seas 5 to
8 ft.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of rain.

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.

$$

ANZ256-181900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas around 2 ft. A
chance of light rain with a slight chance of light snow.
.MON...SE winds 5 to 10 kt. Seas around 2 ft. A chance of light
rain.
.MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 35 kt in the afternoon. Seas 4 to
7 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
6 to 8 ft.
.WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft. A chance of rain.

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.

$$

ANZ232-181900-
Nantucket Sound-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...Light and variable winds. Seas 1 foot or less.
A slight chance of light snow.
.MON...SE winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. A chance of light snow.
.MON NIGHT...SW winds 5 to 10 kt, becoming W with gusts up to
20 kt after midnight. Seas around 2 ft.
.TUE...W winds 10 to 15 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas 2 to 4 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
3 to 5 ft.
.WED...W winds 15 to 20 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 30 kt. Seas 2 to 3 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ233-181900-
Vineyard Sound-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas 1 foot or less. A
slight chance of light snow.
.MON...SE winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. A chance of light snow.
.MON NIGHT...SW winds 5 to 10 kt, becoming W 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft.
.TUE...W 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 2 to
4 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 6 ft.
.WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 3 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ234-181900-
Buzzards Bay-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas 1 foot or less. A
slight chance of light snow.
.MON...S winds around 5 kt. Seas 1 foot or less. A chance of
light snow.
.MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.TUE...W winds 10 to 15 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas 2 to 4 ft.
.TUE NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 35 kt. Seas 3 to 5 ft.
.WED...W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 3 ft.
.THU...NW winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft.
.THU NIGHT...N winds around 5 kt. Seas 1 foot or less.
.FRI...SE winds 5 to 10 kt with gusts up to 20 kt. Seas 1 to
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ235-181900-
Rhode Island Sound-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas 1 foot or less. A
chance of light snow.
.MON...SE winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. A chance of light snow.
.MON NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 35 kt in the afternoon. Seas 3 to
5 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 7 ft.
.WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft.
.WED NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 30 kt. Seas 2 to 4 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ237-181900-
Block Island Sound-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Seas 1 foot or less. A
chance of light snow and light rain.
.MON...S winds 5 to 10 kt. Seas around 2 ft. A chance of light
rain.
.MON NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 35 kt in the afternoon. Seas 2 to
4 ft.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 35 kt. Seas
4 to 6 ft.
.WED...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.FRI...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ230-181900-
Boston Harbor-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...N winds around 5 kt. Waves 1 foot or less. A
chance of light snow.
.MON...S winds around 5 kt. Waves 1 foot or less. A chance of
light snow. Vsby 1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy
fog. A chance of light rain. Vsby 1 to 3 NM.
.TUE...SW winds 5 to 10 kt. Gusts up to 25 kt in the afternoon.
Waves around 2 ft.
.TUE NIGHT...W winds around 10 kt with gusts up to 30 kt. Waves
around 2 ft.
.WED...W winds 10 to 15 kt with gusts up to 30 kt. Waves around
2 ft.
.WED NIGHT...NW winds 5 to 10 kt with gusts up to 25 kt. Waves
around 2 ft.
.THU...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot
or less.
.THU NIGHT...NW winds around 5 kt. Waves 1 foot or less.
.FRI...SE winds 5 to 10 kt. Waves 1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt with gusts up to 25 kt. Waves
around 2 ft. Rain likely.

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.

$$

ANZ236-181900-
Narragansett Bay-
117 AM EST Mon Dec 18 2017

.REST OF TONIGHT...NE winds around 5 kt. Waves 1 foot or less. A
chance of light snow.
.MON...S winds around 5 kt. Waves 1 foot or less. A chance of
light snow.
.MON NIGHT...W winds 5 to 10 kt. Waves around 2 ft.
.TUE...W winds 5 to 10 kt with gusts up to 20 kt, becoming SW
10 to 15 kt with gusts up to 30 kt in the afternoon. Waves 2 to
3 ft.
.TUE NIGHT...W winds 10 to 15 kt with gusts up to 30 kt. Waves
2 to 4 ft.
.WED...W winds 10 to 15 kt with gusts up to 30 kt. Waves around
3 ft.
.WED NIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 25 kt. Waves around 2 ft.
.THU...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot
or less.
.THU NIGHT...N winds around 5 kt. Waves 1 foot or less.
.FRI...SE winds 5 to 10 kt with gusts up to 20 kt. Waves around
2 ft.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 4 ft. Rain likely.

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.

$$

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