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FZUS51 KBOX 140242
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
942 PM EST Thu Dec 13 2018

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

ANZ200-141515-
942 PM EST Thu Dec 13 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres will shift E of the waters on Fri. A storm system will
approach the waters from the SW Fri night and Sat, then moving slowly
across the waters Sat night and Sun. High pres builds back
towards the waters from the W on Tue into Wed.

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.

$$

ANZ250-141515-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...S winds 5 to 10 kt. Seas around 3 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 4 ft. A chance of rain after midnight.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming NW
5 to 10 kt in the afternoon. Seas 3 to 4 ft. A chance of rain in
the morning.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 5 ft.
.SUN...NE winds 10 to 15 kt, becoming E 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. A chance of rain in
the afternoon.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
7 to 8 ft. A chance of rain in the evening, then a chance of
showers after midnight.
.MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas around
8 ft. A chance of showers.
.MON NIGHT...NW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Gusts up to 30 kt. Seas 7 to 8 ft. A chance of
showers in the evening.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
8 ft.
.TUE NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
around 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.

$$

ANZ251-141515-
Massachusetts Bay and Ipswich Bay-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...S winds around 5 kt, increasing to 5 to 10 kt. Seas
2 to 3 ft.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. A chance of
rain after midnight.
.SAT...W winds 5 to 10 kt, becoming NW in the afternoon. Seas
2 to 3 ft. A chance of rain in the morning.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around
5 ft. A chance of rain.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
6 to 7 ft. A chance of rain in the evening, then a chance of
showers after midnight with vsby 1 to 3 NM.
.MON...N winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 7 ft. A chance of showers. Vsby 1 to 3 NM in the
morning.
.MON NIGHT...NW 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 6 to 7 ft.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas around
5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 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.

$$

ANZ231-141515-
Cape Cod Bay-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds around 5 kt. Seas 1 foot or less.
.FRI...S winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A chance
of rain after midnight.
.SAT...SW winds 5 to 10 kt, becoming N in the afternoon. Seas
around 2 ft. A chance of rain in the morning.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft.
.SUN...E winds 10 to 15 kt with gusts up to 25 kt. Seas around
4 ft. A chance of rain.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
around 5 ft. A chance of rain in the evening, then showers likely
after midnight.
.MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft. A chance of showers.
.MON NIGHT...NW winds 15 to 20 kt. Gusts up to 30 kt. Seas 4 to
5 ft. A chance of showers in the evening.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas around
6 ft.
.TUE NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas around 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.

$$

ANZ254-141515-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds around 5 kt, increasing to 5 to 10 kt. Seas
around 3 ft.
.FRI...S winds 5 to 10 kt. Seas around 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. A chance of rain
after midnight.
.SAT...SW winds 5 to 10 kt, becoming NW in the afternoon. Seas
3 to 4 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Gusts up to 25 kt. Seas around 4 ft, building to
6 ft after midnight.
.SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
8 ft. A chance of rain.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
around 9 ft. Showers likely.
.MON...N winds 15 to 20 kt with gusts up to 25 kt. Seas 8 to
9 ft. A chance of showers.
.MON NIGHT...NW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Gusts up to 30 kt. Seas around 8 ft. A chance of
showers in the evening.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas around
8 ft.
.TUE NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
around 8 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.

$$

ANZ255-141515-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SE winds 5 to 10 kt. Seas around 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. A chance of
rain after midnight.
.SAT...S winds 5 to 10 kt, becoming NE in the afternoon. Seas
3 to 4 ft. Rain likely, mainly in the morning.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
around 5 ft, building to 7 ft after midnight.
.SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 8 to
9 ft. A chance of rain in the morning, then rain likely in the
afternoon.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
around 9 ft. Rain likely in the evening, then showers likely
after midnight.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to
8 ft. A chance of showers.
.MON NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
around 7 ft, building to 9 ft after midnight.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
9 ft.
.TUE NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas around 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.

$$

ANZ256-141515-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...SE winds around 10 kt. Seas around 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. A chance of
rain after midnight.
.SAT...S winds 5 to 10 kt, becoming NE 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Rain likely, mainly in the morning.
.SAT NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
around 6 ft, building to 8 ft after midnight. A chance of rain.
.SUN...E winds 20 to 25 kt with gusts up to 35 kt. Seas 9 to
10 ft. Rain likely.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas
9 to 10 ft. Rain likely in the evening, then showers likely after
midnight.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
7 ft. A chance of showers in the morning.
.MON NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
7 to 8 ft.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
8 ft.
.TUE NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas around 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.

$$

ANZ232-141515-
Nantucket Sound-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds 5 to 10 kt. Seas around 2 ft late this
evening, then 1 foot or less.
.FRI...SE winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. A chance of rain after midnight.
.SAT...SW winds 5 to 10 kt, becoming N in the afternoon. Seas
around 2 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
around 4 ft.
.SUN...NE winds 10 to 15 kt, becoming E 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas around 5 ft. A chance of rain.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
around 5 ft. Rain likely in the evening, then showers likely
after midnight.
.MON...N winds 15 to 20 kt, becoming NW 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 5 ft. A chance of
showers.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 5 ft.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas around
5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. 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.

$$

ANZ233-141515-
Vineyard Sound-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SE winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of
rain after midnight.
.SAT...SW winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 3 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
around 4 ft.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas around
5 ft. A chance of rain.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
around 5 ft. Rain likely in the evening, then showers likely
after midnight.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft. A chance of showers in the morning.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 5 ft.
.TUE...NW winds around 20 kt with gusts up to 30 kt. Seas 4 to
5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
around 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.

$$

ANZ234-141515-
Buzzards Bay-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SE winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of
rain after midnight.
.SAT...SW winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft.
.SUN...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 4 ft. A chance of rain.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
around 4 ft. Rain likely in the evening, then showers likely
after midnight.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft. A chance of showers in the morning.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft.
.TUE...NW winds 15 to 20 kt with gusts up to 30 kt. Seas around
4 ft.
.TUE NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 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.

$$

ANZ235-141515-
Rhode Island Sound-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.FRI...SE winds 5 to 10 kt. Seas around 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. A chance of
rain after midnight.
.SAT...SW winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 3 ft. A chance of rain.
.SAT NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Gusts up to 25 kt. Seas around 4 ft, building to
6 ft after midnight. A chance of rain after midnight.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
8 ft. A chance of rain in the morning, then rain likely in the
afternoon.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
around 7 ft. Rain likely in the evening, then a chance of showers
after midnight.
.MON...N winds 15 to 20 kt, becoming NW 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 5 to 6 ft. A chance of showers
in the morning.
.MON NIGHT...NW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Gusts up to 30 kt. Seas 5 to 6 ft.
.TUE...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
6 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
around 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.

$$

ANZ237-141515-
Block Island Sound-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SE winds 5 to 10 kt. Seas around 3 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. A chance of
rain after midnight.
.SAT...S winds around 5 kt, becoming NE in the afternoon. Seas
around 3 ft. Rain likely, mainly in the morning.
.SAT NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas around 4 ft, building to
6 ft after midnight. A chance of rain.
.SUN...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
8 ft. Rain likely.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas
7 to 8 ft. Rain likely in the evening, then a chance of showers
after midnight.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
6 ft. A chance of showers in the morning.
.MON NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
around 5 ft.
.TUE...NW winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
around 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.

$$

ANZ230-141515-
Boston Harbor-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...S winds around 5 kt. Waves around 2 ft.
.FRI...S winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
rain after midnight.
.SAT...W winds around 5 kt, becoming N in the afternoon. Waves
around 2 ft in the morning, then 1 foot or less. A chance of rain
in the morning.
.SAT NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves
2 to 3 ft.
.SUN...NE winds around 10 kt with gusts up to 20 kt. Waves around
4 ft. A chance of rain.
.SUN NIGHT...NE winds around 10 kt. Gusts up to 20 kt in the
evening. Waves around 4 ft. A chance of rain in the evening, then
a chance of showers after midnight.
.MON...N winds 5 to 10 kt. Waves around 2 ft in the morning, then
1 foot or less. At the outer harbor entrance, waves 5 to 6 ft. A
chance of showers. Vsby 1 to 3 NM in the morning.
.MON NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt after
midnight. Waves around 2 ft, except 5 to 6 ft at the outer harbor
entrance.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ236-141515-
Narragansett Bay-
942 PM EST Thu Dec 13 2018

.OVERNIGHT...E winds 5 to 10 kt. Waves around 2 ft.
.FRI...SE winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...S winds around 5 kt. Waves around 3 ft. A chance of
rain after midnight.
.SAT...SW winds around 5 kt, becoming NE in the afternoon. Waves
2 to 3 ft. A chance of rain in the morning.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Waves around 3 ft.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Waves around
3 ft, except 5 to 6 ft at the bay entrance. A chance of rain.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
around 3 ft, except up to 6 ft at the bay entrance. Rain likely
in the evening, then a chance of showers after midnight.
.MON...N winds 10 to 15 kt with gusts up to 20 kt, becoming NW
5 to 10 kt in the afternoon. Waves around 3 ft. A chance of
showers in the morning.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
around 3 ft.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 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

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