618
FZUS51 KBOX 141403
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 AM EDT Tue Oct 14 2025

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

ANZ200-150300-
1003 AM EDT Tue Oct 14 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
A coastal low pres will bring continued periods of rain, rough seas
and NE gale force winds this morning. Gradually decreasing rain and
NE to N wind gusts are expected thru this afternoon. NW winds
decrease some into Wed as high pres builds into western New England,
but NW winds strengthen again to gale force on the eastern waters
Thu into Fri.

$$

ANZ250-150300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 8 to 11 ft. Wave Detail: E 11 ft at 11 seconds. A chance of
drizzle this morning. Patchy fog. Vsby 1 to 3 NM.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight. Wave
Detail: E 9 ft at 10 seconds, becoming E 7 ft at 10 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SE
7 ft at 10 seconds and N 2 ft at 4 seconds.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 8 ft. Wave Detail: N 8 ft at 9 seconds and N 3 ft at
6 seconds. A chance of showers.
.THU AND THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt.
Seas 6 to 9 ft. Wave Detail: N 8 ft at 7 seconds. A chance of
showers.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft. Wave Detail: N 8 ft at 7 seconds. A chance of showers.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft.
.SAT...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ251-150300-
Massachusetts Bay and Ipswich Bay-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 6 to 9 ft. Wave Detail: E 9 ft at 11 seconds. A chance of
drizzle. Patchy fog. Vsby 1 to 3 NM.
.TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave
Detail: E 7 ft at 10 seconds.
.WED...NW winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 5 ft
at 10 seconds and N 2 ft at 3 seconds.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and N 3 ft at
4 seconds. A chance of showers after midnight.
.THU...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: NE 6 ft at 8 seconds and N 3 ft at 5 seconds.
.THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: N 6 ft at 7 seconds. A chance of showers
in the evening.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ231-150300-
Cape Cod Bay-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: N 5 ft at 5 seconds. Patchy fog. A
chance of drizzle. Showers likely. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt, becoming
N around 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: N
4 ft at 6 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and NE 3 ft at 7 seconds.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: N 5 ft at 6 seconds. A chance of showers.
.THU...N winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to
6 ft. Wave Detail: N 6 ft at 6 seconds. A chance of showers.
.THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft. Wave Detail: N 7 ft at 6 seconds. A chance of showers.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. A chance of showers.
.FRI NIGHT AND SAT...NW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...SW winds around 5 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.

$$

ANZ254-150300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 8 to 11 ft. Wave Detail: E 11 ft at 11 seconds. Patchy fog.
A chance of drizzle. Showers likely. Vsby 1 NM or less,
increasing to 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 7 to 10 ft, subsiding to 6 to
8 ft after midnight. Wave Detail: E 10 ft at 10 seconds, becoming
E 8 ft at 10 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 10 seconds and N 2 ft at 4 seconds. A chance of.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 8 ft. Wave Detail: NE 8 ft at 10 seconds and N 5 ft at
6 seconds. A chance of showers.
.THU...N winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
8 ft. Wave Detail: N 8 ft at 7 seconds. Showers likely.
.THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
7 to 10 ft. Wave Detail: N 9 ft at 7 seconds. Showers likely.
.FRI...N winds 25 to 30 kt. Seas 6 to 9 ft. A chance of showers.
.FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 7 ft.
.SAT...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ255-150300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 7 to 10 ft. Wave Detail: E 9 ft at 10 seconds. Patchy fog.
Showers likely. A chance of drizzle. Vsby 1 NM or less,
increasing to 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt. Gusts up to 30 kt in the
evening. Seas 6 to 9 ft. Wave Detail: NE 8 ft at 10 seconds and N
1 foot at 5 seconds. Patchy fog in the evening. A chance of
drizzle in the evening.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 10 seconds and N 3 ft at 4 seconds. A chance of.
.WED NIGHT...N winds 25 to 30 kt. Seas 5 to 8 ft. Wave Detail: NW
6 ft at 5 seconds and E 6 ft at 10 seconds. A chance of showers.
.THU...N winds 25 to 30 kt. Seas 5 to 8 ft. Wave Detail: E 6 ft
at 8 seconds and NW 5 ft at 5 seconds. A chance of showers.
.THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
6 to 9 ft. Wave Detail: N 7 ft at 6 seconds. A chance of showers.
.FRI...N winds 25 to 30 kt. Seas 5 to 7 ft, except 8 to 11 ft S
and E of Nantucket. A chance of showers.
.FRI NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.SAT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ256-150300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds around 25 kt with gusts up to 35 kt.
Seas 8 to 11 ft. Wave Detail: NE 10 ft at 10 seconds and N 2 ft
at 5 seconds. Patchy fog. A chance of drizzle. Showers likely.
Vsby 1 NM or less, increasing to 1 to 3 NM.
.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt, becoming
N 15 to 20 kt after midnight. Seas 7 to 10 ft. Wave Detail: NE
9 ft at 9 seconds and N 2 ft at 5 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and
N 3 ft at 4 seconds.
.WED NIGHT...N winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: E
7 ft at 10 seconds and N 6 ft at 5 seconds.
.THU AND THU NIGHT...N winds 25 to 30 kt. Seas 5 to 8 ft. Wave
Detail: N 6 ft at 5 seconds and E 6 ft at 9 seconds. A chance of
showers.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 5 ft at 6 seconds.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ232-150300-
Nantucket Sound-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 5 to 7 ft. Wave Detail: NE 6 ft at 6 seconds. Patchy fog.
Showers likely. A chance of drizzle. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: NE 5 ft
at 9 seconds and N 1 foot at 5 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and E 3 ft at 10 seconds. A chance of.
.WED NIGHT...N winds 25 to 30 kt. Seas 3 to 5 ft. Wave Detail: N
4 ft at 4 seconds and NE 4 ft at 10 seconds. A chance of showers.
.THU...N winds 25 to 30 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft
at 4 seconds and E 3 ft at 8 seconds. A chance of showers.
.THU NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
4 to 6 ft. Wave Detail: N 5 ft at 6 seconds. A chance of showers.
.FRI...N winds 25 to 30 kt. Seas 3 to 5 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 15 to 20 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.

$$

ANZ233-150300-
Vineyard Sound-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: NE 4 ft at 6 seconds. Patchy fog.
Showers likely. A chance of drizzle. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: N 3 ft
at 6 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and E
2 ft at 7 seconds.
.WED NIGHT...N winds 20 to 25 kt. Seas 3 to 4 ft. Wave Detail: NW
2 ft at 3 seconds and NE 2 ft at 7 seconds. A chance of showers.
.THU AND THU NIGHT...N winds 20 to 25 kt. Seas 3 to 4 ft. Wave
Detail: N 2 ft at 5 seconds. A chance of showers.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 5 seconds. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ234-150300-
Buzzards Bay-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Patchy fog.
Showers likely, then a chance of drizzle. Vsby 1 NM or less,
increasing to 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave
Detail: N 3 ft at 5 seconds.
.WED...N winds around 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 3 seconds and NE 2 ft at 7 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
around 3 ft. Wave Detail: N 2 ft at 3 seconds and NE 2 ft at
7 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt.
Seas around 3 ft. Wave Detail: N 2 ft at 4 seconds. A chance of
showers.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 4 seconds. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ235-150300-
Rhode Island Sound-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 5 to 8 ft. Wave Detail: NE 8 ft at 9 seconds and N 1 foot at
5 seconds. Patchy fog. A chance of drizzle. Showers likely. Vsby
1 to 3 NM.
.TONIGHT...N winds 20 to 25 kt, diminishing to 10 to 15 kt after
midnight. Seas 5 to 7 ft. Wave Detail: NE 7 ft at 8 seconds and N
1 foot at 5 seconds.
.WED...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: NE 5 ft at 10 seconds and
N 3 ft at 3 seconds.
.WED NIGHT...N winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: N
4 ft at 4 seconds and SE 4 ft at 10 seconds.
.THU AND THU NIGHT...N winds 20 to 25 kt. Seas 3 to 5 ft. Wave
Detail: N 4 ft at 4 seconds and E 4 ft at 10 seconds.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 3 ft at 4 seconds and E 2 ft at 7 seconds.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ237-150300-
Block Island Sound-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.THIS AFTERNOON...NE winds 20 to 25 kt with gusts up to 30 kt.
Seas 6 to 9 ft. Wave Detail: NE 8 ft at 10 seconds. Patchy fog. A
chance of drizzle. Vsby 1 to 3 NM.
.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 9 seconds.
.WED...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 4 to 5 ft. Wave Detail: E 5 ft at 10 seconds and NW 2 ft at
3 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: E 5 ft at 10 seconds and N 4 ft at
4 seconds.
.THU AND THU NIGHT...N winds 20 to 25 kt. Seas 3 to 5 ft. Wave
Detail: E 5 ft at 9 seconds and N 3 ft at 4 seconds.
.FRI...N winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and NE 2 ft at 7 seconds.
.FRI NIGHT THROUGH SAT NIGHT...SW 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.

$$

ANZ230-150300-
Boston Harbor-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. A
chance of drizzle. Patchy fog.
.TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
At the outer harbor entrance, waves 2 to 4 ft.
.WED...NW winds 5 to 10 kt, increasing to 15 to 20 kt in the
afternoon. Waves around 2 ft.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ236-150300-
Narragansett Bay-
1003 AM EDT Tue Oct 14 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THIS AFTERNOON...N winds 15 to 20 kt with gusts up to 30 kt.
Waves around 3 ft, except 4 to 6 ft at the bay entrance. Patchy
fog. A chance of drizzle. Vsby 1 to 3 NM.
.TONIGHT...N winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft.
.WED...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Waves 2 to 3 ft.
.WED NIGHT...N winds 15 to 20 kt. Waves 2 to 3 ft.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 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.

$$

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