Station List

National Weather Service Marine Forecast FZUS51 KBOX

FZUS51 KBOX 270506
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
105 AM EDT Sat Apr 27 2024

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

ANZ200-271800
105 AM EDT Sat Apr 27 2024

Synopsis for Massachusetts and Rhode Island coastal waters

High pressure builds into New England through Saturday. The high eventually shifts offshore later this weekend. This will allow a warm front to lift in and bring showers late Saturday night into early Sunday. The trailing cold front may slide through on Monday as low pressure drops from the north, followed by another low late Tuesday.

ANZ250-271800
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds.

SAT
W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave Detail: NE 1 ft at 2 seconds and SW 1 ft at 3 seconds.

SAT NIGHT
S winds around 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at 9 seconds.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at 9 seconds.

TUE AND TUE NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ251-271800
Massachusetts Bay and Ipswich Bay
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds.

SAT
SW winds 5 to 10 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and E 1 ft at 3 seconds.

SAT NIGHT
S winds 5 to 10 kt, becoming SW after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and W 1 ft at 2 seconds.

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

SUN NIGHT
SW winds around 10 kt, becoming W after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds.

MON
N winds around 10 kt, becoming NE in the afternoon. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and E 2 ft at 9 seconds.

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

TUE AND TUE NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ231-271800
Cape Cod Bay
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 ft at 3 seconds and N 1 ft at 3 seconds.

SAT
W winds 5 to 10 kt, becoming S in the afternoon. Seas 1 foot or less. Wave Detail: W 1 ft at 2 seconds and N 1 ft at 3 seconds.

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

SUN
SW winds around 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: E 1 ft at 2 seconds and SW 1 ft at 3 seconds.

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

MON AND MON NIGHT
SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW 1 ft at 3 seconds and SE 1 ft at 4 seconds.

TUE AND TUE NIGHT
SE winds around 10 kt. Seas around 2 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ254-271800
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and N 1 ft at 3 seconds.

SAT
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 ft at 3 seconds and S 1 ft at 5 seconds.

SAT NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 ft at 3 seconds and SW 1 ft at 4 seconds.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 3 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 3 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and NW 1 ft at 3 seconds.

TUE
E winds around 10 kt. Seas 2 to 3 ft.

TUE NIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of rain.

WED AND WED NIGHT
E winds 10 to 15 kt with gusts up to 20 kt, becoming SE. 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.

ANZ255-271800
Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 ft at 3 seconds. Patchy frost.

SAT
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 ft at 2 seconds.

SAT NIGHT
W winds around 10 kt. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 8 seconds.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 9 seconds.

SUN NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at 10 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and N 2 ft at 3 seconds.

TUE THROUGH WED NIGHT
SE winds 10 to 15 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.

ANZ256-271800
Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 ft at 2 seconds.

SAT
W winds around 5 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.

SAT 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.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 9 seconds.

MON AND MON NIGHT
SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and SW 2 ft at 4 seconds.

TUE THROUGH WED NIGHT
SE winds 10 to 15 kt with gusts up to 20 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.

ANZ232-271800
Nantucket Sound
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: W 1 ft at 2 seconds and NE 1 ft at 4 seconds.

SAT
W winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 ft at 2 seconds and NE 1 ft at 4 seconds, becoming SW 1 ft at 3 seconds and N 1 ft at 3 seconds.

SAT NIGHT
SW winds around 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and E 1 ft at 8 seconds.

SUN
SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: SW 1 ft at 4 seconds and E 1 ft at 9 seconds, becoming SW 2 ft at 4 seconds and E 1 ft at 10 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at 10 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW 1 ft at 3 seconds and SW 1 ft at 4 seconds.

TUE
SE winds around 10 kt. Seas around 2 ft.

TUE NIGHT
SE winds 10 to 15 kt. Seas around 2 ft. A chance of rain.

WED AND WED NIGHT
E winds 10 to 15 kt, becoming SE. 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.

ANZ233-271800
Vineyard Sound
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds around 5 kt. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds. Patchy fog and frost. Vsby 1 to 3 NM.

SAT
W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave Detail: W 1 ft at 3 seconds and S 1 ft at 7 seconds, becoming SW 1 ft at 3 seconds and SE 1 ft at 7 seconds.

SAT NIGHT
SW winds 10 to 15 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 5 seconds and SE 1 ft at 8 seconds, becoming SW 1 ft at 5 seconds and SE 1 ft at 8 seconds.

SUN
SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 5 seconds and SE 1 ft at 9 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NE 1 ft at 2 seconds and W 1 ft at 4 seconds.

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

TUE NIGHT
SE winds around 10 kt. Seas around 2 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ234-271800
Buzzards Bay
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
W winds around 5 kt. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds. Patchy fog and frost. Vsby 1 to 3 NM.

SAT
SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds and NE 1 ft at 3 seconds.

SAT NIGHT
SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas around 2 ft in the evening, then 1 foot or less. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 8 seconds, becoming SW 1 ft at 4 seconds and SE 1 ft at 8 seconds.

SUN
SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds.

SUN NIGHT
SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 1 foot or less. Wave Detail: SW 1 ft at 4 seconds and SE 1 ft at 9 seconds.

MON AND MON NIGHT
E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N 1 ft at 3 seconds and SW 1 ft at 4 seconds.

TUE AND TUE NIGHT
SE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft. A chance of rain.

WED AND WED NIGHT
NE winds around 10 kt, becoming SE. 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.

ANZ235-271800
Rhode Island Sound
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds around 5 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and S 1 ft at 7 seconds.

SAT
SW 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: SW 2 ft at 3 seconds and S 1 ft at 7 seconds.

SAT NIGHT
SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 8 seconds.

SUN
SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds.

SUN NIGHT
W winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 9 seconds.

MON AND MON NIGHT
SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 ft at 2 seconds.

TUE AND TUE NIGHT
SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of rain.

WED AND WED NIGHT
NE winds around 10 kt, becoming SE. 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.

ANZ237-271800
Block Island Sound
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 ft at 3 seconds.

SAT
SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 8 seconds.

SAT NIGHT
SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 ft at 7 seconds. A chance of showers after midnight.

SUN
SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds.

SUN NIGHT
W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 9 seconds.

MON AND MON NIGHT
SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 ft at 2 seconds.

TUE AND TUE NIGHT
E winds 5 to 10 kt. Seas around 2 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ230-271800
Boston Harbor
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds 5 to 10 kt. Waves 1 foot or less.

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

SAT NIGHT
S winds around 10 kt, becoming SW after midnight. Waves 1 foot or less.

SUN
SW winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon.

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

MON
N winds around 10 kt, becoming E in the afternoon. Waves 1 foot or less.

MON NIGHT
SE winds 5 to 10 kt. Waves 1 foot or less. A chance of rain after midnight.

TUE AND TUE NIGHT
SE winds 5 to 10 kt. Gusts up to 20 kt. Waves 2 to 3 ft. A chance of rain.

WED AND WED NIGHT
E winds around 10 kt, becoming SE. 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.

ANZ236-271800
Narragansett Bay
105 AM EDT Sat Apr 27 2024

REST OF TONIGHT
SW winds around 5 kt. Waves 1 foot or less.

SAT
SW winds 5 to 10 kt, increasing to 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.

SAT NIGHT
SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft in the evening, then 1 foot or less.

SUN
SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves around 2 ft.

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

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

TUE AND TUE NIGHT
SE winds 5 to 10 kt. Waves around 2 ft. A chance of rain.

WED AND WED NIGHT
NE winds around 10 kt, becoming SE. 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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