Coastal Waters Forecast
Issued by NWS Boston, MA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
168
FZUS51 KBOX 301504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Sun Nov 30 2025

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

ANZ200-010400-
1004 AM EST Sun Nov 30 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front moves across the RI and MA waters Sun. Then a cold
front sweeps across New England late Sun night, ushering in drier
weather and gusty west winds Mon. A coastal low will track near or
south of New England Tue/Tue night, possibly developing into a gale
center Wed, as it pulls away from New England.

$$

ANZ250-010400-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 3 ft, building to 3 to 5 ft.
Wave Detail: S 2 ft at 2 seconds and N 1 foot at 4 seconds,
becoming S 4 ft at 4 seconds and NE 1 foot at 4 seconds. Patchy
fog. A chance of rain.
.TONIGHT...S winds 20 to 25 kt, becoming W after midnight. Gusts
up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 7 seconds.
Rain, mainly in the evening. Patchy fog in the evening with vsby
1 to 3 NM.
.MON...W winds 20 to 25 kt, becoming NW 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and
SE 2 ft at 7 seconds.
.MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming
SE 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 4 ft
at 5 seconds and SE 1 foot at 7 seconds.
.TUE...S winds around 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 5 seconds and SW 1 foot at
4 seconds. Rain. Vsby 1 to 3 NM in the afternoon.
.TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NE
4 ft at 4 seconds and SE 2 ft at 9 seconds, becoming N 6 ft at
6 seconds and SE 4 ft at 8 seconds. Rain. Vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.THU...SW winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to
6 ft.
.THU NIGHT...NW winds 25 to 30 kt with gusts up to 40 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.

$$

ANZ251-010400-
Massachusetts Bay and Ipswich Bay-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot
at 10 seconds. Patchy fog. A chance of rain with vsby 1 to 3 NM.
.TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 5 seconds and SE 1 foot at 9 seconds. Patchy fog in the
evening. Rain likely in the evening with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 7 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE around 5 kt after
midnight. Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and
SE 1 foot at 8 seconds.
.TUE...S winds 5 to 10 kt, becoming E 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 NE 1 foot at
5 seconds, becoming SE 2 ft at 4 seconds and SE 1 foot at
9 seconds. Rain. Vsby 1 to 3 NM in the afternoon.
.TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
2 to 3 ft, building to 3 to 5 ft after midnight. Wave Detail: NE
3 ft at 4 seconds and SW 2 ft at 4 seconds, becoming N 4 ft at
5 seconds and SE 2 ft at 9 seconds. Rain in the evening, then a
chance of rain and snow after midnight. Vsby 1 to 3 NM in the
evening.
.WED...NW winds 20 to 25 kt. Seas 4 to 6 ft.
.WED NIGHT THROUGH THU NIGHT...NW winds 25 to 30 kt with gusts up
to 35 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.

$$

ANZ231-010400-
Cape Cod Bay-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and N 1 foot at
5 seconds. A chance of rain.
.TONIGHT...S winds around 20 kt, becoming W after midnight. Gusts
up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 5 seconds
and SE 2 ft at 9 seconds. Rain, mainly in the evening. Patchy fog
in the evening with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 7 seconds.
.MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming
SE around 5 kt after midnight. Seas 2 to 3 ft. Wave Detail: N
3 ft at 5 seconds and SE 1 foot at 8 seconds.
.TUE...S winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 5 seconds
and SE 1 foot at 9 seconds. A chance of rain in the morning, then
rain in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. Seas 2 to 3 ft, building to 4 to 6 ft after midnight.
Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 9 seconds,
becoming N 6 ft at 5 seconds and SE 2 ft at 8 seconds. Rain. Vsby
1 to 3 NM in the evening.
.WED...NW winds 20 to 25 kt. Seas 4 to 6 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.THU AND THU NIGHT...SW winds 20 to 25 kt, becoming NW 25 to
35 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.

$$

ANZ254-010400-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 5 seconds and N 1 foot at
5 seconds. A slight chance of rain.
.TONIGHT...S winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft
at 7 seconds. Rain, mainly in the evening. Patchy fog in the
evening.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 7 seconds.
.MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming
SE 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: NW
4 ft at 6 seconds and SE 2 ft at 6 seconds.
.TUE...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SW 2 ft at
5 seconds. A chance of rain in the morning, then rain in the
afternoon with vsby 1 to 3 NM.
.TUE NIGHT...NE winds 20 to 25 kt, becoming N 25 to 30 kt after
midnight. Seas 4 to 6 ft, building to 6 to 9 ft after midnight.
Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at 5 seconds,
becoming N 6 ft at 6 seconds and SE 6 ft at 8 seconds. Rain. Vsby
1 to 3 NM.
.WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft. A chance of rain.
.WED NIGHT THROUGH THU NIGHT...NW winds 30 to 35 kt with gusts up
to 40 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.

$$

ANZ255-010400-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 3 ft, building to 4 to 6 ft.
Wave Detail: S 3 ft at 4 seconds and N 1 foot at 4 seconds,
becoming S 6 ft at 7 seconds. A slight chance of rain.
.TONIGHT...S winds 20 to 25 kt, becoming W after midnight. Gusts
up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 8 ft at 8 seconds and
NE 1 foot at 5 seconds. Rain, mainly in the evening. Patchy fog
in the evening with vsby 1 to 3 NM.
.MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft
at 7 seconds and SE 2 ft at 7 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft at 7 seconds and SE
1 foot at 7 seconds.
.TUE...S winds 10 to 15 kt, becoming SE 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of rain in
the morning, then rain in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...NW winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: S
6 ft at 9 seconds and S 5 ft at 6 seconds, becoming N 7 ft at
6 seconds and S 6 ft at 9 seconds. Rain. Vsby 1 to 3 NM.
.WED...NW winds 25 to 30 kt. Seas 6 to 9 ft.
.WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.THU AND THU NIGHT...W winds 25 to 35 kt with gusts up to 40 kt,
becoming NW 35 to 45 kt with gusts up to 50 kt. Seas 6 to 9 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.

$$

ANZ256-010400-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt.
Gusts up to 30 kt. Seas around 3 ft, building to 4 to 6 ft. Wave
Detail: S 3 ft at 4 seconds and SE 1 foot at 8 seconds, becoming
S 6 ft at 7 seconds. Patchy fog. A chance of rain.
.TONIGHT...SW winds 25 to 30 kt, becoming W 20 to 25 kt after
midnight. Seas 6 to 8 ft. Wave Detail: S 8 ft at 8 seconds.
Patchy fog in the evening. Rain likely in the evening with vsby
1 to 3 NM.
.MON...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: NW
7 ft at 7 seconds and S 1 foot at 9 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and
NE 1 foot at 4 seconds.
.TUE...S winds 10 to 15 kt, becoming SE 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 5 seconds and SE 1 foot at 9 seconds. Rain likely in the
morning, then rain in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft, building to 7 to 10 ft after midnight. Wave Detail: SE
5 ft at 9 seconds and NE 4 ft at 5 seconds, becoming N 7 ft at
5 seconds and S 6 ft at 9 seconds. Rain, mainly in the evening
with vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft.
.WED NIGHT...W winds 20 to 25 kt. Seas 4 to 6 ft.
.THU...W winds 25 to 35 kt with gusts up to 40 kt. Seas 6 to
9 ft.
.THU NIGHT...NW winds 35 to 45 kt with gusts up to 50 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.

$$

ANZ232-010400-
Nantucket Sound-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds around 15 kt, increasing to 20 to
25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 4 seconds and N
1 foot at 5 seconds. A chance of rain.
.TONIGHT...S winds 20 to 25 kt, becoming W after midnight. Seas
3 to 5 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 foot at
8 seconds. Rain, mainly in the evening. Patchy fog in the evening
with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 4 ft at 4 seconds and SE 1 foot at
7 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 2 to 3 ft in the evening, then 1 foot or less.
Wave Detail: NW 2 ft at 4 seconds and E 1 foot at 7 seconds,
becoming NE 1 foot at 4 seconds and W 1 foot at 5 seconds.
.TUE...S winds 10 to 15 kt, becoming SE 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and
SE 1 foot at 9 seconds. A chance of rain in the morning, then
rain in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...NE winds 25 to 30 kt, becoming NW after midnight.
Seas 4 to 6 ft. Wave Detail: NW 4 ft at 4 seconds and SE 3 ft at
9 seconds. Rain. Vsby 1 to 3 NM in the evening.
.WED...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft.
.THU...W winds 25 to 30 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.THU NIGHT...NW winds 30 to 40 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.

$$

ANZ233-010400-
Vineyard Sound-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 3 ft, building to 3 to 5 ft.
Wave Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds,
becoming S 4 ft at 5 seconds and SE 1 foot at 8 seconds. Patchy
fog. A chance of rain.
.TONIGHT...SW winds 20 to 25 kt, becoming W after midnight. Gusts
up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds
and E 1 foot at 5 seconds. Rain, mainly in the evening. Patchy
fog in the evening with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 6 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas around 2 ft in the evening, then 1 foot or less.
Wave Detail: W 2 ft at 6 seconds and NE 1 foot at 5 seconds,
becoming E 1 foot at 4 seconds and SW 1 foot at 6 seconds.
.TUE...SE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and
SE 1 foot at 9 seconds. Rain likely in the morning, then rain in
the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: N 3 ft at 4 seconds and SE 3 ft at
9 seconds. Rain. Vsby 1 to 3 NM in the evening.
.WED...NW winds 20 to 25 kt. Seas 3 to 5 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft.
.THU AND THU NIGHT...W winds 25 to 30 kt, becoming NW 25 to 35 kt
with gusts up to 40 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.

$$

ANZ234-010400-
Buzzards Bay-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
5 seconds and N 1 foot at 5 seconds. Patchy fog. A chance of
rain.
.TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft
at 6 seconds. Rain, mainly in the evening. Patchy fog in the
evening with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 4 ft at 7 seconds and SE 1 foot at
5 seconds.
.MON NIGHT...N winds 5 to 10 kt, becoming E after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: NW
2 ft at 6 seconds and NE 1 foot at 4 seconds, becoming NE 1 foot
at 3 seconds and SW 1 foot at 6 seconds.
.TUE...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE
1 foot at 4 seconds and SE 1 foot at 9 seconds. Rain likely in
the morning, then rain in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 20 to 25 kt. Seas 2 to 4 ft. Wave Detail: N
3 ft at 4 seconds and SE 2 ft at 9 seconds. Rain. Vsby 1 to 3 NM
in the evening.
.WED AND WED NIGHT...NW winds 15 to 20 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft.
.THU AND THU NIGHT...W winds 25 to 30 kt, becoming NW. 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.

$$

ANZ235-010400-
Rhode Island Sound-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas around 3 ft, building to 4 to 6 ft.
Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 8 seconds,
becoming S 6 ft at 7 seconds. Patchy fog. A chance of rain.
.TONIGHT...SW winds 20 to 25 kt, becoming W after midnight. Gusts
up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 8 seconds.
Patchy fog in the evening. Rain in the evening with vsby 1 to
3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: W 5 ft at 7 seconds and S 3 ft at 8 seconds.
.MON NIGHT...N winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and NE
1 foot at 5 seconds.
.TUE...S winds 10 to 15 kt, becoming SE 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and
SE 1 foot at 9 seconds. Rain likely in the morning, then rain in
the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft. Wave Detail: NW 5 ft at 4 seconds and S 5 ft at
8 seconds. Rain, mainly in the evening with vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt. Seas 4 to 6 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft.
.THU AND THU NIGHT...W winds 25 to 30 kt, becoming NW 25 to
35 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.

$$

ANZ237-010400-
Block Island Sound-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 15 to 20 kt, increasing to 20 to 25 kt
with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at
5 seconds and SE 1 foot at 8 seconds. Patchy fog. Rain likely.
.TONIGHT...SW winds 20 to 25 kt, becoming W after midnight. Gusts
up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds.
Patchy fog in the evening. Rain likely in the evening with vsby
1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: W 3 ft at 5 seconds and S 3 ft at 7 seconds.
.MON NIGHT...N winds 5 to 10 kt, becoming SE after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: W
2 ft at 5 seconds and N 1 foot at 3 seconds, becoming E 1 foot at
4 seconds and SW 1 foot at 5 seconds.
.TUE...S winds around 10 kt, becoming E with gusts up to 20 kt in
the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds
and SE 1 foot at 9 seconds. Rain likely in the morning, then rain
in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...N winds 20 to 25 kt. Seas 3 to 5 ft, building to
5 to 7 ft after midnight. Wave Detail: E 3 ft at 4 seconds and W
3 ft at 5 seconds, becoming SE 5 ft at 8 seconds and N 4 ft at
5 seconds. Rain, mainly in the evening with vsby 1 to 3 NM.
.WED...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft.
.THU...W winds 25 to 30 kt. Seas 4 to 6 ft.
.THU NIGHT...NW winds 25 to 30 kt with gusts up to 35 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.

$$

ANZ230-010400-
Boston Harbor-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 10 to 15 kt, increasing to 15 to 20 kt.
Gusts up to 25 kt. Waves around 2 ft. A chance of rain with vsby
1 to 3 NM.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. Patchy fog in the evening. Rain likely in the
evening with vsby 1 to 3 NM.
.MON...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft.
.MON NIGHT...N winds 5 to 10 kt, becoming E after midnight. Waves
1 foot or less.
.TUE...SE winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. Rain. A chance of snow in the morning. Vsby 1 to
3 NM.
.TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. Rain in the evening, then a chance of rain and snow
after midnight. Vsby 1 to 3 NM in the evening.
.WED THROUGH THU NIGHT...NW winds 25 to 30 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.

$$

ANZ236-010400-
Narragansett Bay-
1004 AM EST Sun Nov 30 2025

.THIS AFTERNOON...S winds 10 to 15 kt, increasing to 20 to 25 kt.
Waves 2 to 4 ft. Patchy fog. A chance of rain with vsby 1 to
3 NM.
.TONIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Gusts up to 30 kt. Waves 3 to 5 ft. Patchy fog in the
evening. Rain in the evening with vsby 1 to 3 NM.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.MON NIGHT...N winds 5 to 10 kt, becoming E after midnight. Waves
around 2 ft in the evening, then 1 foot or less.
.TUE...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft
in the afternoon. Rain. Vsby 1 to 3 NM in the afternoon.
.TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 3 ft. Rain, mainly in the evening with vsby 1 to 3 NM.
.WED THROUGH THU NIGHT...NW winds 20 to 25 kt with gusts up to
30 kt. Waves 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.

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston