Coastal Waters Forecast
Issued by NWS Boston, MA

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806
FZUS51 KBOX 091405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Thu May 9 2024

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

ANZ200-100300-
1004 AM EDT Thu May 9 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pressure system passes well offshore to the southeast. This could
bring some light rain to the southern waters late today into
tonight. Light rain showers linger into Friday with drying conditions
into the weekend and early next week.

$$

ANZ250-100300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 10 to 15 kt, becoming NE 5 to 10 kt.
Gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at
4 seconds and SE 2 ft at 6 seconds.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: NE 4 ft at 6 seconds and SE 2 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 4 ft. Wave Detail: NE 4 ft at 7 seconds and SE 1 foot
at 6 seconds.
.FRI NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 3 to 5 ft. Wave Detail: E 3 ft at 7 seconds and E
1 foot at 10 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave
Detail: E 5 ft at 8 seconds and SE 1 foot at 8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 8 seconds and S
3 ft at 4 seconds.

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.

$$

ANZ251-100300-
Massachusetts Bay and Ipswich Bay-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming NE. Seas 2 to
3 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at
6 seconds.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E
1 foot at 10 seconds.
.FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at
11 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 7 seconds and E 1 foot at 10 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 8 seconds and SE 1 foot at 15 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and SW
2 ft at 3 seconds.

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.

$$

ANZ231-100300-
Cape Cod Bay-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE
1 foot at 6 seconds.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S
1 foot at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at 6 seconds.
.FRI NIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
N 2 ft at 4 seconds and S 1 foot at 7 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 8 seconds and N 2 ft at 3 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE
1 foot at 3 seconds.

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.

$$

ANZ254-100300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and N 2 ft at
4 seconds.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: N 3 ft at 5 seconds and S 3 ft at 6 seconds.
Patchy fog after midnight.
.FRI...NE winds around 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Wave Detail: NE 4 ft at 7 seconds and S 2 ft at 7 seconds.
A chance of showers in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail:
NE 4 ft at 7 seconds and S 1 foot at 7 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: NE 5 ft at 8 seconds and S 2 ft at
8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and SW
2 ft at 3 seconds.

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.

$$

ANZ255-100300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...NW winds around 10 kt, becoming NE. Gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds and N
1 foot at 3 seconds.
.TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and S 3 ft at 6 seconds. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: NE 4 ft at 4 seconds and S 2 ft at 7 seconds.
A chance of showers.
.FRI NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail:
NE 4 ft at 5 seconds and S 2 ft at 8 seconds. A chance of
showers.
.SAT AND SAT NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave
Detail: NE 4 ft at 5 seconds and E 4 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
Wave Detail: E 4 ft at 8 seconds and SW 3 ft at 4 seconds.

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.

$$

ANZ256-100300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...NW winds 5 to 10 kt, becoming NE. Seas 2 to
3 ft. Wave Detail: S 3 ft at 6 seconds and E 1 foot at
10 seconds. A slight chance of showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 3 ft at 4 seconds and S 3 ft at 6 seconds. A
chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 7 seconds.
A chance of showers.
.FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 4 to 5 ft. Wave Detail: NE 4 ft at 5 seconds
and S 2 ft at 8 seconds. A chance of showers.
.SAT AND SAT NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave
Detail: E 4 ft at 8 seconds and NE 3 ft at 5 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and SW
3 ft at 4 seconds.

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.

$$

ANZ232-100300-
Nantucket Sound-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot
at 6 seconds.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 3 seconds and SW 1 foot at
6 seconds.
.FRI...NE winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 4 seconds and S 1 foot at 7 seconds. A chance of showers in
the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S
1 foot at 7 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at
8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds.

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.

$$

ANZ233-100300-
Vineyard Sound-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...NW winds around 10 kt, becoming NE. Seas around
2 ft. Wave Detail: S 2 ft at 6 seconds and N 1 foot at 3 seconds.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and
NE 1 foot at 3 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at
7 seconds. A chance of showers in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S
1 foot at 7 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NE winds 15 to 20 kt. Seas around 2 ft. Wave
Detail: NE 2 ft at 3 seconds and E 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds.

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.

$$

ANZ234-100300-
Buzzards Bay-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds around 10 kt, becoming NE. Seas around
2 ft. Wave Detail: S 2 ft at 6 seconds and NW 1 foot at
4 seconds.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and
NE 1 foot at 2 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at
7 seconds. A chance of showers in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S
1 foot at 7 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at
8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds.

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.

$$

ANZ235-100300-
Rhode Island Sound-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming NE. Seas 2 to
3 ft. Wave Detail: S 3 ft at 6 seconds and N 1 foot at 3 seconds.
A slight chance of showers.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 6 seconds and NE 2 ft at 3 seconds.
A chance of showers.
.FRI...NE winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 3 ft at 4 seconds and S 2 ft at 7 seconds.
A chance of showers.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and S
1 foot at 7 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: NE 3 ft at 4 seconds and S 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S
3 ft at 9 seconds.

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.

$$

ANZ237-100300-
Block Island Sound-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Seas around
2 ft. Wave Detail: S 2 ft at 6 seconds and W 1 foot at 2 seconds.
A slight chance of showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 foot at
10 seconds. A chance of showers.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 4 seconds and S 2 ft at 7 seconds. A
chance of showers.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 5 seconds and S
1 foot at 7 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 5 seconds and S 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
Wave Detail: SE 3 ft at 7 seconds and SW 2 ft at 3 seconds.

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.

$$

ANZ230-100300-
Boston Harbor-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Waves 1 foot or
less.
.TONIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft. A chance of
showers in the evening.
.FRI...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Waves around 2 ft.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Waves around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 5 to 10 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.

$$

ANZ236-100300-
Narragansett Bay-
1005 AM EDT Thu May 9 2024

.THIS AFTERNOON...N winds around 10 kt, becoming NE. Waves around
2 ft. A slight chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Waves around 2 ft. A chance of showers.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft.
.SAT AND SAT NIGHT...N winds 10 to 15 kt. Waves 2 to 3 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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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