National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 111103
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
703 AM EDT Wed Sep 11 2024

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

ANZ200-120000
703 AM EDT Wed Sep 11 2024

Synopsis for Massachusetts and Rhode Island coastal waters

High pressure over southern NY early this morning will move offshore through today, then remain in place over the waters the next several days. Mainly light winds and seas are expected.

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ANZ250-120000
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming SE this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and N 1 foot at 3 seconds.

TONIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds.

THU
S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 3 seconds.

THU NIGHT
S winds around 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 9 seconds.

FRI
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds.

FRI NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds.

SAT THROUGH SUN NIGHT
S winds 5 to 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.

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ANZ251-120000
Massachusetts Bay and Ipswich Bay
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 2 seconds and E 1 foot at 9 seconds.

TONIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds.

THU
S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 8 seconds, becoming SE 1 foot at 3 seconds and E 1 foot at 8 seconds.

THU NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at 8 seconds.

FRI
SW winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 8 seconds, becoming S 1 foot at 3 seconds and E 1 foot at 7 seconds.

FRI NIGHT
S winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave Detail: SE 1 foot at 3 seconds and E 1 foot at 7 seconds.

SAT THROUGH SUN NIGHT
S winds 5 to 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.

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ANZ231-120000
Cape Cod Bay
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming E this afternoon. Seas 1 foot or less. Wave Detail: N 1 foot at 2 seconds and E 1 foot at 8 seconds.

TONIGHT
S winds 5 to 10 kt, becoming SW after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 6 seconds.

THU
S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 5 seconds.

THU NIGHT
S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 7 seconds.

FRI
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 7 seconds.

FRI NIGHT
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot at 7 seconds.

SAT THROUGH SUN NIGHT
S winds around 5 kt. Seas 1 foot or less.

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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ANZ254-120000
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and NW 1 foot at 3 seconds.

TONIGHT
S winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 NM or less.

THU
S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and N 1 foot at 3 seconds. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 2 seconds.

FRI AND FRI NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot at 3 seconds.

SAT THROUGH SUN NIGHT
SE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 foot at 2 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.

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ANZ255-120000
Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SW 1 foot at 5 seconds.

TONIGHT
SE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 4 seconds. Patchy fog after midnight with vsby 1 NM or less.

THU
SE winds around 5 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: E 2 ft at 8 seconds, becoming SE 1 foot at 2 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 NM or less.

THU NIGHT
S winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 foot at 2 seconds.

FRI AND FRI NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at 2 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 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.

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ANZ256-120000
Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming E this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and W 1 foot at 4 seconds.

TONIGHT
SE winds around 5 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at 4 seconds.

THU
SE winds around 5 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds, becoming SE 1 foot at 2 seconds and E 1 foot at 7 seconds.

THU NIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 2 seconds and SE 1 foot at 8 seconds.

FRI
S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds.

FRI NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 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.

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ANZ232-120000
Nantucket Sound
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming E this afternoon. Seas 1 foot or less. Wave Detail: NW 1 foot at 4 seconds and E 1 foot at 9 seconds.

TONIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 5 seconds.

THU
S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 7 seconds.

THU NIGHT
S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 8 seconds.

FRI AND FRI NIGHT
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 6 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE 1 foot 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.

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ANZ233-120000
Vineyard Sound
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: W 1 foot at 4 seconds and E 1 foot at 8 seconds.

TONIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 8 seconds.

THU
SE winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

THU NIGHT
S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

FRI AND FRI NIGHT
W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and SE 1 foot 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.

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ANZ234-120000
Buzzards Bay
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: W 1 foot at 4 seconds and E 1 foot at 8 seconds.

TONIGHT
S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 8 seconds.

THU
S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

THU NIGHT
S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

FRI AND FRI NIGHT
W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 7 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot 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.

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ANZ235-120000
Rhode Island Sound
703 AM EDT Wed Sep 11 2024

TODAY
N winds 5 to 10 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: W 1 foot at 4 seconds and E 1 foot at 9 seconds.

TONIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 9 seconds.

THU
SE winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 9 seconds.

THU NIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 2 seconds and SE 1 foot at 9 seconds.

FRI
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and SE 1 foot at 8 seconds.

FRI NIGHT
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 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.

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ANZ237-120000
Block Island Sound
703 AM EDT Wed Sep 11 2024

TODAY
NE winds 5 to 10 kt, becoming SE this afternoon. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and E 1 foot at 9 seconds.

TONIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 8 seconds.

THU
SE winds around 5 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 2 seconds and SE 1 foot at 8 seconds.

THU NIGHT
S winds around 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.

FRI
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE 1 foot at 2 seconds and SE 1 foot at 8 seconds.

FRI NIGHT
SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE 1 foot at 8 seconds.

SAT THROUGH SUN NIGHT
SE winds 5 to 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.

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ANZ230-120000
Boston Harbor
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming SE this afternoon. Waves 1 foot or less.

TONIGHT
S winds 5 to 10 kt. Waves 1 foot or less.

THU
S winds 5 to 10 kt. Waves 1 foot or less.

THU NIGHT
SW winds 5 to 10 kt. Waves 1 foot or less.

FRI
SW winds 5 to 10 kt, becoming S in the afternoon. Waves 1 foot or less.

FRI NIGHT
S winds around 5 kt, becoming W after midnight. Waves 1 foot or less.

SAT THROUGH SUN NIGHT
S winds 5 to 10 kt. Waves 1 foot or less.

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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ANZ236-120000
Narragansett Bay
703 AM EDT Wed Sep 11 2024

TODAY
N winds around 5 kt, becoming S this afternoon. Waves 1 foot or less.

TONIGHT
S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less.

THU
S winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM.

THU NIGHT
S winds 5 to 10 kt, becoming SW after midnight. Waves 1 foot or less.

FRI
SW winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 1 foot or less.

FRI NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less.

SAT THROUGH SUN NIGHT
SE 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.

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