Coastal Waters Forecast
Issued by NWS Boston, MA

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443
FZUS51 KBOX 011703
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 PM EDT Tue Oct 1 2024

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

ANZ200-020600-
103 PM EDT Tue Oct 1 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A ridge of high pressure will remain anchored across our waters for
the remainder of the work week. A weak cold front will cross the
waters Saturday into Saturday night followed by a brief high
pressure system for Sunday. The high pressure system will then move
east of the waters on Monday as a cold front begins to approach from
the west.

$$

ANZ250-020600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 11 seconds and E 3 ft at 5 seconds.
.TONIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 6 seconds and E 4 ft at 12 seconds. A chance of sprinkles
after midnight.
.WED...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
7 seconds. A chance of sprinkles in the morning.
.WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and E 2 ft at 6 seconds.
.THU AND THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 9 seconds and N 2 ft at 4 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt. Seas
2 to 3 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N with gusts up
to 20 kt. Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ251-020600-
Massachusetts Bay and Ipswich Bay-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 4 seconds and E 2 ft at 11 seconds.
.TONIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E
3 ft at 11 seconds. A chance of sprinkles.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
6 seconds and E 3 ft at 11 seconds. A chance of sprinkles in the
morning.
.WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and E 1 foot at
6 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds and N 2 ft at 4 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and N 1 foot at 4 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Gusts up to 20 kt. Seas
2 to 3 ft.
.SAT AND SAT NIGHT...NW winds 5 to 10 kt, becoming N. Seas 2 to
3 ft. A chance of showers.

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.

$$

ANZ231-020600-
Cape Cod Bay-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 11 seconds and E 1 foot at 3 seconds.
.TONIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 11 seconds and E
1 foot at 3 seconds. A chance of sprinkles.
.WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 3 seconds and E 2 ft at 9 seconds. A chance of sprinkles in
the morning.
.WED NIGHT...E winds around 5 kt. Seas around 2 ft. Wave Detail:
NE 2 ft at 3 seconds and E 2 ft at 9 seconds.
.THU...SE winds around 5 kt. Seas around 2 ft. Wave Detail: N
2 ft at 4 seconds and E 2 ft at 10 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
2 ft at 4 seconds and E 2 ft at 9 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N with gusts up
to 20 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ254-020600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 11 seconds and SE 3 ft at
6 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 10 seconds and E 4 ft at 6 seconds.
.WED...E winds around 10 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 9 seconds and E 2 ft at
6 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E
5 ft at 9 seconds and NE 1 foot at 4 seconds.
.THU...E winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds and NW 2 ft at 4 seconds.
.THU NIGHT...S winds around 5 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds and NW 2 ft at 4 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt, becoming N 10 to 15 kt
with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.

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.

$$

ANZ255-020600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and E 3 ft at
11 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 8 seconds. A chance of sprinkles
after midnight.
.WED...E winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 9 seconds and E 1 foot at
4 seconds. A chance of sprinkles in the morning.
.WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 9 seconds and N 3 ft at 4 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at
9 seconds and NW 3 ft at 4 seconds.
.THU NIGHT...S winds around 5 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 9 seconds and NW 2 ft at 4 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. A chance of showers.

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.

$$

ANZ256-020600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds and E 4 ft at
11 seconds.
.TONIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds. A
chance of sprinkles after midnight.
.WED...E winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at
4 seconds. A chance of sprinkles in the morning.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds and N 3 ft at 4 seconds.
.THU...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 3 ft at 9 seconds.
.THU NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and NW 2 ft at 4 seconds.
.FRI AND FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N 10 to 15 kt
with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ232-020600-
Nantucket Sound-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and E 1 foot at
11 seconds.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at
12 seconds. A chance of sprinkles after midnight.
.WED...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 4 seconds and E 2 ft at 10 seconds. A chance of sprinkles in
the morning.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 4 seconds and E 2 ft at 9 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at
10 seconds.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 3 seconds and E 2 ft at 9 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt, becoming N 10 to 15 kt
with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ233-020600-
Vineyard Sound-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 4 seconds and E 1 foot at 12 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: E 2 ft at 4 seconds and E 2 ft at 12 seconds.
.WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and NE 1 foot at 3 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 10 seconds and NW 1 foot at
3 seconds.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and NW 1 foot at 3 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N. Seas around
2 ft. A chance of showers.

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.

$$

ANZ234-020600-
Buzzards Bay-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 3 seconds and E 1 foot at 12 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: E 2 ft at 3 seconds and E 2 ft at 12 seconds.
.WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft
at 3 seconds and E 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and NE 1 foot at 3 seconds.
.THU...NE winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 10 seconds and NW 1 foot at
3 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 9 seconds and NW 1 foot at 2 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N. Seas around
2 ft. A chance of showers.

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.

$$

ANZ235-020600-
Rhode Island Sound-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and E 1 foot
at 13 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 7 seconds and SE 3 ft at 13 seconds.
.WED...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and NE 2 ft at 4 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and NE 2 ft at 4 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at
10 seconds.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
NW 2 ft at 3 seconds and SE 2 ft at 9 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N. Seas 2 to
3 ft. A chance of showers.

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.

$$

ANZ237-020600-
Block Island Sound-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at
12 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 6 seconds and SE 3 ft at 11 seconds.
.WED...E winds around 10 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at
4 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and N 2 ft at 3 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at
9 seconds.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
W 2 ft at 3 seconds and SE 2 ft at 9 seconds.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N. Seas 2 to
3 ft. A chance of showers.

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.

$$

ANZ230-020600-
Boston Harbor-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds around 10 kt. Waves around 2 ft.
.TONIGHT...E winds 10 to 15 kt, diminishing to around 5 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
A chance of sprinkles after midnight.
.WED...E winds 5 to 10 kt. Waves 1 foot or less. A chance of
sprinkles in the morning.
.WED NIGHT...SE winds 5 to 10 kt, becoming S after midnight.
Waves 1 foot or less.
.THU...SW winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less, then around 2 ft in the afternoon.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.SAT AND SAT NIGHT...NW winds 5 to 10 kt, becoming N. Waves
around 2 ft, then 1 foot or less. A chance of showers.

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.

$$

ANZ236-020600-
Narragansett Bay-
103 PM EDT Tue Oct 1 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Waves around 2 ft.
.TONIGHT...E winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Waves around 2 ft.
.WED...E winds 5 to 10 kt. Waves around 2 ft.
.WED NIGHT...E winds around 5 kt. Waves around 2 ft.
.THU...NE winds around 5 kt, becoming S around 5 kt in the
afternoon. Waves around 2 ft.
.THU NIGHT...SW winds around 5 kt. Waves around 2 ft.
.FRI AND FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.SAT AND SAT NIGHT...W winds 5 to 10 kt, becoming N. Waves around
2 ft. A chance of showers.

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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