936
FZUS51 KBOX 161404
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 AM EDT Mon Sep 16 2024

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

ANZ200-170300-
1003 AM EDT Mon Sep 16 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres over New England will continue to provide dry, tranquil
boating weather through at least Tue. Low pres near the Carolinas
and mid-Atlantic coast then spreads a period of enhanced onshore
easterly winds, building seas and periods of rain later on Wed and
into Thurs. High pres then returns for Fri into the weekend, with a
continued enhanced east-northeast breeze.

$$

ANZ250-170300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 8 seconds and E 1 foot at 12 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and E 1 foot at 12 seconds.
.WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SE 1 foot at 12 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and SE 2 ft at 11 seconds. A chance of showers.
.THU...NE winds around 10 kt. Seas 2 to 4 ft. A chance of
showers.
.THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
6 to 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.

$$

ANZ251-170300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds.
.TUE...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and E 1 foot at 12 seconds.
.WED...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 8 seconds and E 1 foot at 12 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and E 1 foot at 3 seconds. A chance of
showers.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. A
chance of showers.
.FRI...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.FRI NIGHT...NE winds 15 to 20 kt. 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.

$$

ANZ231-170300-
Cape Cod Bay-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SE 1 foot at 7 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Wave Detail: SE 1 foot at 2 seconds and E 1 foot
at 7 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.TUE...S winds around 5 kt. Seas 1 foot or less. Wave Detail: E
1 foot at 7 seconds and SE 1 foot at 8 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SE 2 ft at 2 seconds
and E 1 foot at 7 seconds, becoming SE 1 foot at 3 seconds and E
1 foot at 6 seconds.
.WED AND WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 6 seconds and SE 1 foot at 12 seconds. A
chance of showers.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 2 ft at
3 seconds. A chance of showers.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 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.

$$

ANZ254-170300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 7 seconds and S 1 foot at 8 seconds. Patchy fog
with vsby 1 to 3 NM.
.TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 to
3 NM.
.TUE...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and E 1 foot at 12 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and E 1 foot at 12 seconds.
.WED...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds and SE 2 ft at 12 seconds. A chance of showers in
the afternoon.
.WED NIGHT...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail:
SE 4 ft at 8 seconds and SE 2 ft at 11 seconds. A chance of
showers. Vsby 1 to 3 NM.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt.
Seas 4 to 5 ft. A chance of showers. Vsby 1 to 3 NM.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 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.

$$

ANZ255-170300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...E winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog
with vsby 1 to 3 NM.
.TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 to
3 NM.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and SE 1 foot at 12 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds and SE 1 foot at 12 seconds. A chance of showers.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 8 seconds and E 1 foot at 3 seconds. A chance of showers
in the evening, then showers likely after midnight. Vsby 1 to
3 NM.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt.
Seas 4 to 5 ft. A chance of showers. Vsby 1 to 3 NM.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.FRI NIGHT...NE winds 20 to 25 kt. Seas 5 to 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.

$$

ANZ256-170300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...E winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds. Patchy fog with vsby 1 to 3 NM.
.TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft
at 9 seconds and E 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and SE 1 foot at 13 seconds.
.WED...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds. A chance of
showers.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 8 seconds and SE 1 foot at 12 seconds. A chance of
showers in the evening, then showers likely after midnight. Vsby
1 to 3 NM.
.THU THROUGH FRI...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. A chance of showers.
.FRI NIGHT...NE winds 20 to 25 kt. Seas 5 to 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.

$$

ANZ232-170300-
Nantucket Sound-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 1 foot at 8 seconds and E 1 foot at 8 seconds.
.TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail: E
1 foot at 7 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby
1 to 3 NM.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and E 1 foot at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and E 1 foot at 12 seconds.
.WED...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 3 seconds and SE 2 ft at 8 seconds. A chance of showers.
.WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of showers.
Vsby 1 to 3 NM after midnight.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ233-170300-
Vineyard Sound-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: E 1 foot at 7 seconds and SE 1 foot at 9 seconds.
.TONIGHT...SE winds around 5 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: SE 1 foot at 7 seconds,
becoming E 1 foot at 7 seconds and SE 1 foot at 8 seconds. Patchy
fog after midnight with vsby 1 to 3 NM.
.TUE...SE winds around 5 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 9 seconds and E 1 foot at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 6 seconds and SE 1 foot at 13 seconds.
.WED AND WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 8 seconds and E 1 foot at 3 seconds. A chance
of showers.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 7 seconds and NE 1 foot at 3 seconds. A chance
of showers.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ234-170300-
Buzzards Bay-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas 1 foot or less. Wave
Detail: E 1 foot at 7 seconds and SE 1 foot at 8 seconds.
.TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave Detail:
SE 1 foot at 6 seconds. Patchy fog after midnight with vsby 1 to
3 NM.
.TUE...SE winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: E 1 foot at 7 seconds and SE 1 foot at
9 seconds, becoming SE 2 ft at 9 seconds and E 1 foot at
7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SE 2 ft at 4 seconds
and E 1 foot at 12 seconds, becoming E 1 foot at 3 seconds and SE
1 foot at 7 seconds.
.WED AND WED NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and E 1 foot at 2 seconds. A chance
of showers.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot
at 3 seconds. A chance of showers.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ235-170300-
Rhode Island Sound-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...E winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds.
.TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 to
3 NM.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 foot at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and SE 1 foot at 13 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft
at 9 seconds and E 1 foot at 2 seconds. A chance of showers.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 8 seconds and E 1 foot at 3 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A
chance of showers.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ237-170300-
Block Island Sound-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...E winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds.
.TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and E 1 foot at 7 seconds. Patchy fog. Vsby
1 to 3 NM.
.TUE...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and E 1 foot at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds.
.WED AND WED NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: SE 4 ft at 9 seconds and E 1 foot at 4 seconds. A chance
of showers. Vsby 1 to 3 NM.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 8 seconds and NE 2 ft at 5 seconds. A chance
of showers.
.FRI AND FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ230-170300-
Boston Harbor-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves 1 foot or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...SW winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.WED...SE winds 5 to 10 kt. Waves 1 foot or less.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.
.THU AND THU NIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft. A
chance of showers.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ236-170300-
Narragansett Bay-
1004 AM EDT Mon Sep 16 2024

.THIS AFTERNOON...E winds around 5 kt, becoming S around 5 kt.
Waves around 2 ft.
.TONIGHT...S winds around 5 kt. Waves around 2 ft. Patchy fog
after midnight with vsby 1 to 3 NM.
.TUE...E winds around 5 kt, becoming SE around 5 kt in the
afternoon. Waves 2 to 3 ft. Patchy fog in the morning with vsby
1 to 3 NM.
.TUE NIGHT...SE winds around 5 kt. Waves 2 to 3 ft.
.WED AND WED NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. A
chance of showers.
.THU AND THU NIGHT...NE winds around 10 kt. Waves 2 to 3 ft. A
chance of showers.
.FRI AND FRI NIGHT...NE 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.

$$

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