Coastal Waters Forecast
Issued by NWS Boston, MA

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417
FZUS51 KBOX 011405
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Mon Jul 1 2024

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

ANZ200-020300-
1004 AM EDT Mon Jul 1 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
An upper disturbance slides through the region today. This could
bring some spotty showers and thunderstorms to the waters this
afternoon. This will be followed by a high pres Tue and Wed. High
pres moves farther offshore Thu, permitting a cold front to approach.

$$

ANZ250-020300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Mon Jul 1 2024

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

$$

ANZ251-020300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt, diminishing to 5 to 10 kt.
Gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at
4 seconds and SE 2 ft at 7 seconds. A slight chance of showers.
Isolated tstms.
.TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
2 ft at 5 seconds and SE 1 foot at 7 seconds.
.TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at
8 seconds.
.TUE NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas 1 foot or less. Wave Detail: NE 1 foot at 4 seconds and SE
1 foot at 8 seconds.
.WED...SW winds around 5 kt, becoming S 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at
7 seconds, becoming SE 2 ft at 8 seconds and S 1 foot at
3 seconds.
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at
6 seconds.
.THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ231-020300-
Cape Cod Bay-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at
7 seconds. A slight chance of showers.
.TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
2 ft at 4 seconds and SE 2 ft at 7 seconds.
.TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds and SE 1 foot at 7 seconds.
.TUE NIGHT...SE winds around 5 kt, becoming W after midnight.
Seas 1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE
1 foot at 8 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 4 seconds and SE 1 foot at 8 seconds.
.THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE
2 ft at 7 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.

$$

ANZ254-020300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and N 2 ft at
4 seconds. Patchy fog.
.TONIGHT...N winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds and N
2 ft at 5 seconds.
.TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and N 2 ft at 4 seconds.
.TUE NIGHT...NW winds around 5 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 8 seconds and N 1 foot at 4 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 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.

$$

ANZ255-020300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Mon Jul 1 2024

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

$$

ANZ256-020300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Mon Jul 1 2024

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

$$

ANZ232-020300-
Nantucket Sound-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: N 2 ft at 3 seconds and NE 2 ft at 6 seconds. A slight
chance of showers.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at
7 seconds.
.TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds and S 1 foot at 7 seconds.
.TUE NIGHT...NE winds around 5 kt, becoming W after midnight.
Seas around 2 ft in the evening, then 1 foot or less. Wave
Detail: N 1 foot at 4 seconds and SE 1 foot at 7 seconds,
becoming NE 1 foot at 4 seconds and SE 1 foot at 7 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and E 1 foot at 6 seconds.
.THU...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.FRI AND FRI NIGHT...SW winds around 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.

$$

ANZ233-020300-
Vineyard Sound-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at
4 seconds. A chance of showers.
.TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and NE 1 foot at 3 seconds.
.TUE...NE winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: S 2 ft at 7 seconds and N 1 foot at
4 seconds, becoming NE 1 foot at 2 seconds and W 1 foot at
4 seconds.
.TUE NIGHT...SE winds around 5 kt, becoming W after midnight.
Seas 1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S
1 foot at 7 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds.
.THU THROUGH FRI NIGHT...S winds 15 to 20 kt with gusts up to
25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S
2 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.

$$

ANZ234-020300-
Buzzards Bay-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot
at 4 seconds. A chance of showers with isolated tstms.
.TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and NE 1 foot at 3 seconds.
.TUE...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 4 seconds and S 1 foot at 7 seconds.
.TUE NIGHT...SE winds around 5 kt, becoming W after midnight.
Seas 1 foot or less. Wave Detail: N 1 foot at 3 seconds and S
1 foot at 7 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and E 1 foot at 6 seconds.
.THU AND THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at
4 seconds and SE 1 foot at 8 seconds.
.FRI AND FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ235-020300-
Rhode Island Sound-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt. Gusts up to 20 kt. Seas
around 3 ft. Wave Detail: S 3 ft at 7 seconds and N 1 foot at
4 seconds. A slight chance of showers, then a chance of showers
with isolated tstms.
.TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and N 1 foot at 4 seconds.
.TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at
3 seconds.
.TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: SE
2 ft at 7 seconds and NE 1 foot at 2 seconds, becoming NE 1 foot
at 2 seconds and SE 1 foot at 7 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 7 seconds.
.THU THROUGH FRI...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
8 seconds.
.FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.

Winds and seas higher in and near tstms.

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.

$$

ANZ237-020300-
Block Island Sound-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt, diminishing to 5 to 10 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and NW 1 foot at
3 seconds. A slight chance of showers, then a chance of showers
with isolated tstms.
.TONIGHT...NW winds around 5 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and NE 1 foot at
4 seconds.
.TUE...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at
3 seconds.
.TUE NIGHT...S winds around 5 kt, becoming W around 5 kt after
midnight. Seas around 2 ft in the evening, then 1 foot or less.
Wave Detail: SE 2 ft at 7 seconds and E 1 foot at 3 seconds,
becoming E 1 foot at 3 seconds and SE 1 foot at 7 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.THU THROUGH FRI...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at
3 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.

Winds and seas higher in and near tstms.

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.

$$

ANZ230-020300-
Boston Harbor-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 5 to 10 kt. Waves 1 foot or less. A
slight chance of showers, then a chance of showers with isolated
tstms.
.TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...N winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less.
.TUE NIGHT...S winds around 5 kt, becoming SW after midnight.
Waves 1 foot or less.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Waves around 2 ft.
.THU THROUGH FRI NIGHT...S winds 10 to 15 kt. Waves 1 foot or
less.

Winds and waves higher in and near tstms.

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.

$$

ANZ236-020300-
Narragansett Bay-
1004 AM EDT Mon Jul 1 2024

.THIS AFTERNOON...N winds 10 to 15 kt. Waves 2 to 3 ft. A slight
chance of showers, then a chance of showers with isolated tstms.
.TONIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...N winds 5 to 10 kt, becoming E in the afternoon. Waves
around 2 ft.
.TUE NIGHT...S winds around 5 kt, becoming W after midnight.
Waves 1 foot or less.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.THU THROUGH FRI NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Waves 2 to 3 ft.

Winds and waves higher in and near tstms.

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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