Coastal Waters Forecast
Issued by NWS Boston, MA

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216
FZUS51 KBOX 061403
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 AM EDT Mon May 6 2024

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

ANZ200-070300-
1003 AM EDT Mon May 6 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A weak cold front moves across New England Monday, then offshore
Monday night. Weak high pressure then builds over the region
Tuesday. Weak broad area of low pressure then moves across New
England Wednesday. Another low, potentially stronger, tracks over or
just south of the MA/RI waters later Thu into Fri. This low exits
into the maritimes Saturday, followed by weak high pressure over New
England Sunday.

$$

ANZ250-070300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...S winds around 5 kt. Seas around 3 ft. Wave
Detail: E 3 ft at 10 seconds and S 1 ft at 4 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 2 ft at
5 seconds.
.TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 ft at
5 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and S 2 ft at 4 seconds.
.WED...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 7 seconds and E 2 ft at 10 seconds. A chance of rain. Vsby
1 to 3 NM in the afternoon.
.WED NIGHT...E winds around 10 kt, becoming N with gusts up to
20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 10 seconds. A chance of rain in the
evening.
.THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of rain.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 4 to 6 ft. A chance of rain.

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.

$$

ANZ251-070300-
Massachusetts Bay and Ipswich Bay-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...S winds around 5 kt, becoming SE. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 ft at 3 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and S 1 ft at
5 seconds.
.TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 10 seconds and SE 1 ft at
5 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 3 seconds and E 2 ft at 10 seconds.
.WED...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 3 seconds and E 2 ft at 10 seconds. A chance of rain.
.WED NIGHT...NE winds around 10 kt, becoming N after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at
10 seconds. A chance of rain in the evening.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of rain.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 5 ft. A chance of rain.

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.

$$

ANZ231-070300-
Cape Cod Bay-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 9 seconds and S 1 ft at 2 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 10 seconds and SW 1 ft at
2 seconds.
.TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 10 seconds and W 1 ft at
2 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 ft at 2 seconds and E 1 ft at 9 seconds.
.WED...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: S 1 ft at 2 seconds and E 1 ft at
6 seconds, becoming S 1 ft at 2 seconds and E 1 ft at 7 seconds.
A chance of rain.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: S 1 ft at 2 seconds and E 1 ft at
8 seconds. A chance of rain in the evening.
.THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ254-070300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 10 seconds and S 3 ft at 5 seconds. A slight
chance of showers. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and S
3 ft at 5 seconds.
.TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at
5 seconds.
.TUE NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and E 3 ft at 10 seconds.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
7 seconds and E 2 ft at 10 seconds. A chance of rain in the
afternoon.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at
10 seconds. A chance of rain in the evening.
.THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft.
.THU NIGHT...E winds around 15 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of rain.
.FRI...NE winds around 15 kt with gusts up to 25 kt. Seas 5 to
7 ft. A chance of rain.
.FRI NIGHT...NE winds around 15 kt with gusts up 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.

$$

ANZ255-070300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 5 seconds and E 3 ft at 10 seconds. A slight
chance of showers. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E
3 ft at 10 seconds.
.TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and S 2 ft at
5 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and E 2 ft at 11 seconds.
.WED...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and E 2 ft at 10 seconds. A chance of rain in the
afternoon.
.WED NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at
10 seconds. A chance of rain in the evening.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of rain.
.FRI...NE winds around 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of rain.
.FRI NIGHT...NE winds around 15 kt with gusts up 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.

$$

ANZ256-070300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas around 3 ft. Wave
Detail: E 3 ft at 10 seconds and S 2 ft at 5 seconds.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E
3 ft at 10 seconds.
.TUE...N winds around 5 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at
10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and E 2 ft at 10 seconds.
.WED...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: S 3 ft
at 7 seconds and E 2 ft at 10 seconds. A chance of rain.
.WED NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at
10 seconds.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 5 ft. A chance of rain.
.FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of rain.
.FRI NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas
4 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.

$$

ANZ232-070300-
Nantucket Sound-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and E 2 ft at 10 seconds. A slight
chance of showers. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 10 seconds.
.TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 11 seconds and SW 1 ft at
5 seconds.
.TUE NIGHT...S winds around 5 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: S 1 ft at 6 seconds and
E 1 ft at 11 seconds, becoming S 1 ft at 7 seconds and E 1 ft at
10 seconds.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and E 1 ft at 10 seconds. A chance of rain in the
afternoon.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 ft at
10 seconds. A chance of rain in the evening.
.THU THROUGH FRI...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of rain.
.FRI NIGHT...NE winds around 15 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.

$$

ANZ233-070300-
Vineyard Sound-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and E 1 ft at 10 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 ft at 4 seconds and E 1 ft at 10 seconds.
.TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 ft at 5 seconds and E 1 ft at
10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. Wave Detail: S 1 ft at 5 seconds and E 1 ft
at 11 seconds, becoming S 2 ft at 7 seconds and E 1 ft at
12 seconds.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 6 seconds and E 1 ft at 12 seconds. A chance of rain.
.WED NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 ft at
11 seconds. A chance of rain in the evening.
.THU THROUGH FRI...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of rain.
.FRI NIGHT...NE 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.

$$

ANZ234-070300-
Buzzards Bay-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 1 foot or less. Wave
Detail: SW 1 ft at 3 seconds and E 1 ft at 10 seconds.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds
and E 1 ft at 10 seconds.
.TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 ft at 5 seconds and E 1 ft at
10 seconds.
.TUE NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 ft at 4 seconds and E 1 ft at 11 seconds.
.WED...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less. Wave Detail: S 1 ft at 6 seconds
and E 1 ft at 11 seconds. A chance of rain.
.WED NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: SW 1 ft at 5 seconds and E 1 ft
at 11 seconds. A chance of rain in the evening.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas around 2 ft. A chance of rain.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ235-070300-
Rhode Island Sound-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 5 to 10 kt, increasing to 10 to 15 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 ft at
10 seconds.
.TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 5 seconds and
E 1 ft at 10 seconds.
.TUE...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 1 ft at
10 seconds.
.TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and E 1 ft at 11 seconds.
.WED...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and
E 1 ft at 13 seconds. A chance of rain.
.WED NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 ft at
12 seconds. A chance of rain in the evening.
.THU AND THU NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. A chance of rain.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. A chance of rain.

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.

$$

ANZ237-070300-
Block Island Sound-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and E 2 ft at 9 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 2 ft at
10 seconds.
.TUE...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 5 seconds and E 2 ft at
10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and E 2 ft at 10 seconds.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and E 1 ft at 11 seconds. A chance of rain.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and E 1 ft at
10 seconds. A chance of rain in the evening.
.THU...E winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft. A chance of rain.
.THU NIGHT...NE winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of rain.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. A chance of rain.

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.

$$

ANZ230-070300-
Boston Harbor-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...Light and variable winds, becoming E around
5 kt. Waves 1 foot or less. A slight chance of showers.
.TONIGHT...SW winds around 5 kt, becoming NW after midnight.
Waves 1 foot or less.
.TUE...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.TUE NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Waves 1 foot or less.
.WED...SE winds 5 to 10 kt. Waves 1 foot or less. A chance of
rain.
.WED NIGHT...N winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight. A chance of rain in the evening.
.THU THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up to
20 kt. Waves 2 to 3 ft. A chance of rain.

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.

$$

ANZ236-070300-
Narragansett Bay-
1003 AM EDT Mon May 6 2024

.THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. A slight
chance of showers.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Waves
around 2 ft.
.TUE...N winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.WED...S winds 5 to 10 kt. Waves around 2 ft. A chance of rain.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight.
Waves around 2 ft. A chance of rain in the evening.
.THU THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up to
25 kt. Waves 2 to 3 ft. A chance of rain.

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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