National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 190201
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1001 PM EDT Mon Mar 18 2024

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

ANZ200-191500
1001 PM EDT Mon Mar 18 2024

Synopsis for Massachusetts and Rhode Island coastal waters

A weak cold front crosses the waters this evening followed by increasing WNW winds tonight into Tuesday. A frontal system pushes through on Wed, bringing scattered showers. Low pressure associated with this frontal system, intensifies into a gale center along/near the Maine coast Wed night into Thu, with strong WNW winds across the MA and RI waters. High pressure brings light winds and dry weather Friday. The return flow around the departing high may bring showers Saturday. Increasing onshore flow may develop around Sunday, with high pressure over Quebec and developing low pressure along the Carolina coast.


ANZ250-191500
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY AFTERNOON

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

TUE
NW winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.

TUE NIGHT
W winds 10 to 15 kt, becoming SW after midnight. Gusts up to 20 kt. Seas 2 to 3 ft.

WED
SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 25 to 30 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft after midnight. A chance of rain.

THU
W winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft.

THU NIGHT
W winds 25 to 30 kt, becoming NW 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 5 to 7 ft.

FRI
W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.

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

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

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 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.


ANZ251-191500
Massachusetts Bay and Ipswich Bay
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.

TUE NIGHT
W winds 10 to 15 kt, becoming SW after midnight. Gusts up to 20 kt. Seas around 2 ft.

WED
SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft.

WED NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, increasing to 25 to 30 kt after midnight. Seas 2 to 4 ft. A chance of rain.

THU AND THU NIGHT
NW winds 25 to 30 kt with gusts up to 35 kt. Seas 2 to 4 ft.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

FRI NIGHT
SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow.

SAT
SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain and snow.

SAT NIGHT
NW winds 15 to 20 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.


ANZ231-191500
Cape Cod Bay
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft.

TUE
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.

TUE NIGHT
W winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas around 2 ft.

WED
SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft.

WED NIGHT
SW winds 10 to 15 kt, becoming W 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft. A chance of rain in the evening.

THU AND THU NIGHT
NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

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

SAT AND SAT NIGHT
S winds 15 to 20 kt, becoming NW. Gusts up to 30 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.


ANZ254-191500
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH WEDNESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

TUE NIGHT
W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft.

WED
SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 20 to 25 kt with gusts up to 30 kt after midnight. Seas 4 to 6 ft.

THU AND THU NIGHT
NW winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to 7 ft.

FRI
W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.

FRI NIGHT
SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain.

SAT
SE winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of rain.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 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.


ANZ255-191500
Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH WEDNESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.

TUE NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.

WED
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 25 to 35 kt with gusts up to 40 kt. Seas 5 to 7 ft.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain.

SAT
SE winds 15 to 20 kt with gusts up to 35 kt. Seas 4 to 6 ft. A chance of rain.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 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.


ANZ256-191500
Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH WEDNESDAY MORNING

OVERNIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft.

TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

WED
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to 7 ft.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain.

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

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 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.


ANZ232-191500
Nantucket Sound
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE NIGHT
W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 25 to 30 kt with gusts up to 35 kt. Seas 2 to 4 ft.

FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. A chance of rain.

SAT AND SAT NIGHT
SE winds 15 to 20 kt, becoming NW. Gusts up to 30 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.


ANZ233-191500
Vineyard Sound
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

TUE NIGHT
W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft.

WED
SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Seas 2 to 4 ft.

WED NIGHT
SW winds 15 to 20 kt, becoming W 25 to 30 kt after midnight. 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
W winds 25 to 30 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 4 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

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

SAT AND SAT NIGHT
S winds 15 to 20 kt, becoming NW. Gusts up to 30 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.


ANZ234-191500
Buzzards Bay
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE NIGHT
W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft.

WED
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 25 to 30 kt with gusts up to 35 kt. Seas 2 to 4 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.

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

SAT AND SAT NIGHT
S winds 15 to 20 kt, becoming NW. Gusts up to 30 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.


ANZ235-191500
Rhode Island Sound
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.

TUE NIGHT
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.

WED
SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.

WED NIGHT
SW winds 20 to 25 kt, becoming W 25 to 30 kt after midnight. Seas 3 to 5 ft.

THU
W winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to 6 ft.

THU NIGHT
NW winds 25 to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 3 to 5 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain.

SAT
SE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 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.


ANZ237-191500
Block Island Sound
1001 PM EDT Mon Mar 18 2024

SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH TUESDAY MORNING

OVERNIGHT
NW winds 10 to 15 kt, becoming W 15 to 20 kt. Gusts up to 25 kt. Seas 2 to 3 ft.

TUE
W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.

TUE NIGHT
W winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain.

SAT
S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of rain.

SAT NIGHT
NW winds 15 to 20 kt with gusts up to 30 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.


ANZ230-191500
Boston Harbor
1001 PM EDT Mon Mar 18 2024

OVERNIGHT
W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.

TUE
W winds around 15 kt with gusts up to 25 kt. Waves around 2 ft.

TUE NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, becoming SW after midnight. Waves around 2 ft in the evening, then 1 foot or less.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves around 2 ft.

WED NIGHT
W winds 15 to 20 kt, increasing to 25 to 30 kt after midnight. Waves around 2 ft. A chance of rain.

THU AND THU NIGHT
W winds 25 to 30 kt with gusts up to 35 kt. Waves around 2 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.

FRI NIGHT
S winds around 10 kt. Waves around 2 ft. A chance of snow.

SAT
SE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of rain and snow.

SAT NIGHT
NW winds around 15 kt with gusts up to 25 kt. Waves around 2 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.


ANZ236-191500
Narragansett Bay
1001 PM EDT Mon Mar 18 2024

OVERNIGHT
W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.

TUE
W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft.

TUE NIGHT
SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft.

WED
SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves 2 to 4 ft.

WED NIGHT THROUGH THU NIGHT
NW winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 4 ft.

FRI
W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft.

FRI NIGHT
S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. A chance of rain and snow.

SAT AND SAT NIGHT
SE winds 10 to 15 kt, becoming NW. Gusts up to 25 kt. Waves 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.


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