Sandy Bay Weather Center
Weather Center


X

ANZ230 Boston Harbor

Expires:202602120400;;459820
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ230-120400-
Boston Harbor-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft. 
.THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Waves around 2 ft. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Waves around 2 ft. 
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 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.

$$


	
X

ANZ231 Cape Cod Bay

		
Expires:202602120400;;459811
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ231-120400-
Cape Cod Bay-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...NW winds around 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and NE 1 foot
at 5 seconds. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at
5 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 4 ft at 6 seconds and E 1 foot at
10 seconds. Light freezing spray in the morning. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and SE 1 foot at
10 seconds. Light freezing spray after midnight. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and S 1 foot at
11 seconds. 
.SAT THROUGH SUN...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot
at 6 seconds. 
.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.

$$


	        
X

ANZ232 Nantucket Sound

Expires:202602120400;;459815
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ232-120400-
Nantucket Sound-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...W winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at
4 seconds. 
.TONIGHT...W 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 NE 1 foot at
5 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 5 seconds and SE 1 foot at 10 seconds. Light freezing spray in
the morning. 
.THU NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and S
1 foot at 10 seconds. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and NE 2 ft at
8 seconds. 
.SAT THROUGH SUN...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at
7 seconds. 
.SUN NIGHT...E winds 10 to 15 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.

$$


	                	
X

ANZ233 Vinyard Sound

Expires:202602120400;;459816
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ233-120400-
Vineyard Sound-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...W winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: SW 3 ft at 6 seconds and E 1 foot at 11 seconds. 
.TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 6 seconds and E 1 foot at
10 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW
3 ft at 6 seconds and SE 1 foot at 11 seconds. Light freezing
spray in the morning. 
.THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: N 2 ft at 6 seconds and S 1 foot at
9 seconds. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 1 foot
at 6 seconds. 
.SAT THROUGH SUN...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 1 foot
at 7 seconds. 
.SUN NIGHT...E winds 10 to 15 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.

$$


		                	
X

ANZ234 Buzzards Bay

Expires:202602120400;;459817
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ234-120400-
Buzzards Bay-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...W winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and E 1 foot at
11 seconds. 
.TONIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: W 3 ft at 6 seconds and E 1 foot at
10 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 5 seconds and SE 1 foot at 10 seconds. Light freezing spray in
the morning. 
.THU NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds and S
1 foot at 10 seconds. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and NE 1 foot at 5 seconds. 
.SAT THROUGH SUN...N winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 5 seconds and NE 1 foot at 7 seconds. 
.SUN NIGHT...SE winds 10 to 15 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.

$$


		              	
X

ANZ235 Rhode Island Sound

Expires:202602120400;;459818
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ235-120400-
Rhode Island Sound-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 6 seconds and E 1 foot at
11 seconds. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. Wave Detail: W 4 ft at 6 seconds and E 1 foot at
10 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 4 ft at 6 seconds and SE 1 foot at
11 seconds. Light freezing spray in the morning. 
.THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and S 1 foot at
9 seconds. Light freezing spray after midnight. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and NE 1 foot at
4 seconds. 
.SAT THROUGH SUN NIGHT...E winds 15 to 20 kt. Seas 2 to 3 ft.
Wave Detail: W 3 ft at 5 seconds and SE 2 ft at 4 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.

$$


		
X

ANZ236 Narragansett Bay

Expires:202602120400;;459821
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ236-120400-
Narragansett Bay-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft. 
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft. 
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft. 
.THU NIGHT...NW winds around 10 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Waves around 2 ft. 
.SAT THROUGH SUN NIGHT...E winds 10 to 15 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.

$$

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

You can follow us on Facebook at
www.facebook.com/us.nationalweatherservice.boston.gov

You can follow us on Twitter at
@NWSBoston

			
X

ANZ237 Block Island Sound

Expires:202602120400;;459819
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ237-120400-
Block Island Sound-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EST THIS EVENING
THROUGH THURSDAY AFTERNOON...

.THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and SE 1 foot at
5 seconds. 
.TONIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. Wave Detail: W 4 ft at 5 seconds and S 1 foot at 7 seconds.
Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 3 ft at 4 seconds and S 1 foot at
10 seconds. Light freezing spray in the morning. 
.THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at
9 seconds. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and S 1 foot
at 10 seconds. 
.SAT THROUGH SUN NIGHT...E winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and W
2 ft at 4 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.

$$


			
X

ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary

Expires:202602120400;;459809
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ250-120400-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING
THROUGH THURSDAY EVENING...

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot
at 5 seconds. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NW 5 ft at 5 seconds and SE 1 foot at
6 seconds. 
.THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
5 ft. Wave Detail: N 5 ft at 6 seconds and E 1 foot at
10 seconds. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: N 4 ft at 6 seconds and SE 1 foot at
10 seconds. Light freezing spray after midnight. 
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot at
10 seconds. Light freezing spray in the morning. 
.FRI NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and NE 1 foot at
6 seconds. 
.SAT THROUGH SUN...NW winds 15 to 20 kt. Seas 2 to 3 ft. 
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$


	
X

ANZ251 Massachusetts Bay and Ipswich Bay

Expires:202602120400;;459810
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ251-120400-
Massachusetts Bay and Ipswich Bay-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...NW winds around 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at
4 seconds. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
5 seconds. Light freezing spray after midnight. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas around
3 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at
10 seconds. Light freezing spray in the morning. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at
11 seconds. Light freezing spray. 
.FRI...W winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: NE 3 ft at 6 seconds and NW 2 ft at
3 seconds. Light freezing spray in the morning. 
.FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot at
6 seconds. 
.SAT THROUGH SUN...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. 
.SUN NIGHT...SW winds 10 to 15 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.

$$


		
X

ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM

 
Expires:202602120400;;459812
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ254-120400-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at
5 seconds. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: NW 5 ft at 5 seconds and NE 1 foot at
5 seconds. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: N 5 ft at 6 seconds and E 1 foot at
10 seconds. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: N 5 ft at 7 seconds and SE 1 foot at
10 seconds. 
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 6 seconds and S 1 foot at
10 seconds. 
.FRI NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and NE 3 ft at
6 seconds. 
.SAT THROUGH SUN...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 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.

$$


		
X

ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket

Expires:202602120400;;459813
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ255-120400-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.THIS AFTERNOON...W winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: SW 6 ft at 7 seconds and NE 1 foot
at 5 seconds. 
.TONIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: W 6 ft at 7 seconds and E 1 foot at
11 seconds. Light freezing spray after midnight. 
.THU...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: NW
6 ft at 6 seconds and E 1 foot at 10 seconds. Light freezing
spray in the morning. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: W 4 ft at 7 seconds and NE 2 ft at
7 seconds. Light freezing spray after midnight. 
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: NW 3 ft at 5 seconds and NE 2 ft at 7 seconds.
Light freezing spray in the morning. 
.FRI NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: W
5 ft at 6 seconds and NE 1 foot at 8 seconds. 
.SAT...W winds 15 to 20 kt. Seas 3 to 5 ft. A chance of snow. 
.SAT NIGHT THROUGH SUN NIGHT...E 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.

$$


		
X

ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island

Expires:202602120400;;459814
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ256-120400-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EST Wed Feb 11 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and E 1 foot at
11 seconds. 
.TONIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: W 6 ft at 6 seconds and E 1 foot at
10 seconds. 
.THU...NW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: N 6 ft
at 5 seconds and SE 1 foot at 11 seconds. Light freezing spray in
the morning. 
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and S 1 foot at
9 seconds. Light freezing spray after midnight. 
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 3 ft at 5 seconds and S 1 foot at
10 seconds. Light freezing spray in the morning. 
.FRI NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and NE 1 foot at
8 seconds. 
.SAT AND SAT NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. 
.SUN AND SUN NIGHT...N winds 10 to 15 kt, becoming E 15 to 20 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.

$$


		
X

ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore

			
X

ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore

		
X

ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore

		
X

ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore

 
		
X

ANZ230 Boston Harbor

 
Expires:202602120400;;459820
FZUS51 KBOX 111504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EST Wed Feb 11 2026

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


ANZ230-120400-
Boston Harbor-
1004 AM EST Wed Feb 11 2026

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. 
.TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. 
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft. 
.THU NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Waves around 2 ft. 
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Waves around 2 ft. 
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 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.

$$


		


  • Click on a zone to display the forecast for that area.
ANZ230 Boston Harbor ANZ231 Cape Cod Bay ANZ232 Nantucket Sound ANZ233 Vinyard Sound ANZ234 Buzzards Bay ANZ235 Rhode Island Sound ANZ236 Narragansett Bay ANZ237 Block Island Sound ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary ANZ251 Massachusetts Bay and Ipswich Bay ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore ANZ230 Boston Harbor ANZ231 Cape Cod Bay ANZ232 Nantucket Sound ANZ233 Vinyard Sound ANZ234 Buzzards Bay ANZ235 Rhode Island Sound ANZ236 Narragansett Bay ANZ237 Block Island Sound ANZ250 Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary ANZ251 Massachusetts Bay and Ipswich Bay ANZ254 Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM ANZ255 Coastal waters extending out to 25 NM south of Martha’s Vineyard and Nantucket ANZ256 Coastal waters from Montauk NY to Martha’s Vineyard extending out to 20 NM south of Block Island ANZ270 Ocean waters from Merrimack River to Plymouth from 40 to 60 NM offshore ANZ271 Ocean waters from Provincetown to Nantucket from 20 to 35 NM offshore ANZ272 Ocean waters from Martha’s Vineyard to Nantucket from 25 to 40 NM offshore ANZ273 Ocean waters from Montauk NY to Martha’s Vineyard from 25 to 40 NM offshore

 

 



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