National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 032001
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
401 PM EDT Tue Oct 3 2023

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

ANZ200-040900
401 PM EDT Tue Oct 3 2023

Synopsis for Massachusetts and Rhode Island coastal waters

High pressure continues to move overhead this evening into tomorrow, and then pushing further offshore Thursday. A cold front brings the next shot for rain showers this coming weekend.

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ANZ250-040900
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
401 PM EDT Tue Oct 3 2023

TONIGHT
SW winds 5 to 10 kt, becoming NW after midnight. Seas 3 to 4 ft.

WED
NE winds around 5 kt. Seas 2 to 3 ft.

WED NIGHT
SE winds 5 to 10 kt. Seas 2 to 3 ft.

THU
S winds 5 to 10 kt. Seas 2 to 3 ft.

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas 2 to 3 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.

SAT
SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers.

SAT NIGHT AND SUN
SE winds 15 to 20 kt, becoming W. Gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 25 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.

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ANZ251-040900
Massachusetts Bay and Ipswich Bay
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt, becoming NW after midnight. Seas 2 to 3 ft.

WED
NE winds 5 to 10 kt. Seas 2 to 3 ft.

WED NIGHT
SE winds 5 to 10 kt. Seas around 2 ft.

THU
S winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Seas 2 to 3 ft.

THU NIGHT AND FRI
SE winds 10 to 15 kt. Seas 2 to 3 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.

SAT
SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers likely.

SAT NIGHT
SE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. Showers likely.

SUN
W winds around 15 kt with gusts up to 25 kt. Seas 5 to 8 ft. A chance of showers.

SUN NIGHT
SW winds around 15 kt with gusts up to 25 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.

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ANZ231-040900
Cape Cod Bay
401 PM EDT Tue Oct 3 2023

TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.

WED
N winds around 5 kt, becoming NE around 5 kt in the afternoon. Seas around 2 ft.

WED NIGHT
SE winds around 5 kt. Seas around 2 ft.

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

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas around 2 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.

SAT
SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.

SAT NIGHT AND SUN
SE winds 10 to 15 kt, becoming W. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.

SUN NIGHT
W winds around 15 kt with gusts up to 25 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.

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ANZ254-040900
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 3 to 4 ft.

WED
N winds around 5 kt, becoming E in the afternoon. Seas 2 to 3 ft.

WED NIGHT
SE winds around 5 kt. Seas 2 to 3 ft.

THU
SE winds 5 to 10 kt. Seas 2 to 3 ft.

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas 2 to 3 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.

SAT
SE winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers.

SAT NIGHT AND SUN
SE winds 15 to 20 kt, becoming W. Gusts up to 30 kt. Seas 7 to 10 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 30 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.

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ANZ255-040900
Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 2 to 4 ft.

WED
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft.

WED NIGHT
SE winds around 5 kt. Seas 2 to 3 ft.

THU
SE winds 5 to 10 kt. Seas around 2 ft.

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas 2 to 4 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.

SAT
SE winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers.

SAT NIGHT AND SUN
S winds around 15 kt, becoming W. Gusts up to 30 kt. Seas 6 to 9 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 30 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.

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ANZ256-040900
Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 3 to 4 ft.

WED
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft.

WED NIGHT
S winds around 5 kt. Seas 2 to 3 ft.

THU
SE winds 5 to 10 kt. Seas around 2 ft.

THU NIGHT AND FRI
E winds 5 to 10 kt. Seas 2 to 3 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.

SAT
SE winds around 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers.

SAT NIGHT
SW winds around 15 kt with gusts up to 25 kt. Seas 6 to 8 ft. A chance of showers.

SUN
W winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 8 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 30 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.

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ANZ232-040900
Nantucket Sound
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 2 to 3 ft.

WED
NW winds around 5 kt, becoming SE around 5 kt in the afternoon. Seas around 2 ft.

WED NIGHT
SE winds around 5 kt. Seas around 2 ft.

THU
SE winds 5 to 10 kt. Seas 1 foot or less.

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas around 2 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.

SAT
SE winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.

SAT NIGHT AND SUN
S winds around 15 kt, becoming W. Gusts up to 30 kt. Seas 4 to 6 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 30 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.

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ANZ233-040900
Vineyard Sound
401 PM EDT Tue Oct 3 2023

TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.

WED
NW winds around 5 kt, becoming S around 5 kt in the afternoon. Seas around 2 ft.

WED NIGHT
S winds around 5 kt. Seas around 2 ft.

THU
SE winds 5 to 10 kt. Seas 1 foot or less.

THU NIGHT AND FRI
SE winds 5 to 10 kt. Seas 1 foot or less.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.

SAT
SE winds around 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.

SAT NIGHT AND SUN
S winds around 15 kt, becoming W. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 25 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.

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ANZ234-040900
Buzzards Bay
401 PM EDT Tue Oct 3 2023

TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.

WED
N winds around 5 kt, becoming SE in the afternoon. Seas 1 foot or less.

WED NIGHT
S winds around 5 kt. Seas 1 foot or less.

THU
SE winds 5 to 10 kt. Seas 1 foot or less.

THU NIGHT AND FRI
SE winds 10 to 15 kt. Seas 1 foot or less.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.

SAT AND SAT NIGHT
SE winds 10 to 15 kt, becoming S. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.

SUN
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 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.

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ANZ235-040900
Rhode Island Sound
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 2 to 3 ft.

WED
NW winds around 5 kt, becoming S in the afternoon. Seas around 2 ft.

WED NIGHT
S winds around 5 kt. Seas around 2 ft.

THU
SE winds 5 to 10 kt. Seas 1 foot or less.

THU NIGHT AND FRI
SE winds 10 to 15 kt. Seas around 2 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.

SAT AND SAT NIGHT
SE winds around 15 kt, becoming SW. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers.

SUN
W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 6 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 25 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.

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ANZ237-040900
Block Island Sound
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt. Seas 2 to 3 ft.

WED
NW winds around 5 kt, becoming S around 5 kt in the afternoon. Seas around 2 ft.

WED NIGHT
S winds around 5 kt. Seas around 2 ft.

THU
SE winds 5 to 10 kt. Seas 1 foot or less.

THU NIGHT AND FRI
E winds 5 to 10 kt. Seas around 2 ft.

FRI NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.

SAT AND SAT NIGHT
SE winds around 15 kt, becoming SW. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers.

SUN
W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. A chance of showers.

SUN NIGHT
W winds 15 to 20 kt with gusts up to 25 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.

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ANZ230-040900
Boston Harbor
401 PM EDT Tue Oct 3 2023

TONIGHT
W winds 5 to 10 kt, becoming NW after midnight. Waves 1 foot or less.

WED
N winds around 5 kt, becoming E in the afternoon. Waves 1 foot or less.

WED NIGHT
SE winds 5 to 10 kt. Waves 1 foot or less.

THU
S winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

THU NIGHT AND FRI
SE winds 10 to 15 kt. Waves around 2 ft.

FRI NIGHT
SE winds 10 to 15 kt. Waves 2 to 3 ft. A chance of showers.

SAT AND SAT NIGHT
SE winds 10 to 15 kt with gusts up to 25 kt. Showers likely.

SUN
W winds around 15 kt with gusts up to 25 kt. A chance of showers.

SUN NIGHT
SW winds 10 to 15 kt with gusts up to 25 kt.

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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ANZ236-040900
Narragansett Bay
401 PM EDT Tue Oct 3 2023

TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft.

WED
N winds around 5 kt, becoming S in the afternoon. Waves around 2 ft.

WED NIGHT
S winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less.

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

THU NIGHT AND FRI
SE winds 5 to 10 kt. Waves around 2 ft.

FRI NIGHT
SE winds around 10 kt with gusts up to 20 kt. Waves 2 to 4 ft. A chance of showers.

SAT AND SAT NIGHT
SE winds 10 to 15 kt, becoming SW. Gusts up to 20 kt. A chance of showers.

SUN
W winds around 15 kt with gusts up to 25 kt. A chance of showers.

SUN NIGHT
W winds 10 to 15 kt with gusts up to 25 kt.

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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