826  
FZUS51 KBOX 251105  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
705 AM EDT TUE MAR 25 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-260000-  
705 AM EDT TUE MAR 25 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
WEAK HIGH PRESSURE SOUTH OF THE REGION TODAY, FOLLOWED BY A WEAK LOW  
PRESSURE SYSTEM MOVING SOUTH OF NANTUCKET TONIGHT. HIGH PRESSURE  
BUILDS IN FOR THURSDAY THEN A TROUGH OF LOW PRESSURE CROSSES THE  
REGION ON FRIDAY.  
 

 
 
ANZ250-260000-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING
 
 
   
TODAY
 
SW WINDS AROUND 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE  
4 FT AT 9 SECONDS AND SW 1 FOOT AT 2 SECONDS. AREAS OF FOG THIS  
MORNING WITH VSBY 1 TO 3 NM.    
TONIGHT
 
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 9 SECONDS AND W 1 FOOT AT  
3 SECONDS.    
WED
 
W WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS 2 TO  
3 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND W 1 FOOT AT  
3 SECONDS.    
WED NIGHT
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT  
AT 4 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
THU AND THU NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND SE 2 FT AT  
8 SECONDS.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.   
FRI NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. A CHANCE OF SHOWERS.    
SAT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. A CHANCE OF RAIN AND SNOW SHOWERS. VSBY 1 TO 3 NM.    
SAT NIGHT
 
SE WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ251-260000-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
TONIGHT
 
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 9 SECONDS AND W 1 FOOT AT 3 SECONDS.    
WED
 
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT  
AT 8 SECONDS AND W 1 FOOT AT 2 SECONDS.    
WED NIGHT
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT  
AT 3 SECONDS AND SE 2 FT AT 10 SECONDS. A CHANCE OF SHOWERS IN  
THE EVENING.    
THU AND THU NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND E 2 FT AT  
8 SECONDS.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS AROUND  
2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND NE 1 FOOT AT  
4 SECONDS.    
FRI NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
AROUND 2 FT. A CHANCE OF SHOWERS.    
SAT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT. A CHANCE OF RAIN AND SNOW SHOWERS. VSBY 1 TO 3 NM.    
SAT NIGHT
 
SE WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
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.  
 

 
 
ANZ231-260000-  
CAPE COD BAY-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH  
GUSTS UP TO 20 KT THIS AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 9 SECONDS AND SW 1 FOOT AT 2 SECONDS. AREAS OF FOG  
THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 9 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
WED
 
SW WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS, THEN AROUND  
2 FT IN THE AFTERNOON. WAVE DETAIL: W 1 FOOT AT 2 SECONDS AND E  
1 FOOT AT 5 SECONDS, BECOMING SE 2 FT AT 8 SECONDS AND SW 1 FOOT  
AT 2 SECONDS.    
WED NIGHT
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH  
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 8 SECONDS AND W 1 FOOT AT 2 SECONDS.    
THU AND THU NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND SE 1 FOOT  
AT 8 SECONDS.    
FRI
 
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 E 1 FOOT AT 7 SECONDS.   
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ254-260000-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.  
SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT AT 9 SECONDS. AREAS OF FOG  
THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE  
DETAIL: S 5 FT AT 9 SECONDS AND W 1 FOOT AT 4 SECONDS.    
WED
 
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT  
AT 9 SECONDS AND E 1 FOOT AT 11 SECONDS. PATCHY FOG IN THE  
MORNING WITH VSBY 1 NM OR LESS.    
WED NIGHT
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT  
AT 8 SECONDS AND W 2 FT AT 3 SECONDS.    
THU AND THU NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND S 3 FT AT  
8 SECONDS.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.   
FRI NIGHT THROUGH SAT NIGHT
 
E WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.  
 
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.  
 

 
 
ANZ255-260000-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: S 7 FT AT 9 SECONDS. AREAS OF DENSE FOG THIS  
MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE  
DETAIL: S 6 FT AT 9 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY FOG  
AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.    
WED
 
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT IN THE  
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND  
SW 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF  
RAIN IN THE MORNING WITH VSBY 1 NM OR LESS.    
WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND W 3 FT AT  
5 SECONDS.    
THU AND THU NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE 2 FT AT  
7 SECONDS.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
FRI NIGHT THROUGH SAT NIGHT
 
E WINDS 10 TO 15 KT WITH GUSTS UP  
TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ256-260000-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: S 7 FT AT 9 SECONDS AND W 1 FOOT AT 4 SECONDS.  
AREAS OF DENSE FOG THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING  
W 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT  
AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS.    
WED
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS.    
WED NIGHT
 
W WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT  
AT 8 SECONDS AND NW 3 FT AT 4 SECONDS.    
THU AND THU NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 4 FT. WAVE DETAIL: NW 3 FT AT 5 SECONDS AND SE 2 FT AT  
7 SECONDS.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ232-260000-  
NANTUCKET SOUND-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND S 2 FT AT 9 SECONDS.  
AREAS OF FOG THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: W 2 FT AT 3 SECONDS AND S 2 FT AT 9 SECONDS.    
WED
 
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT  
AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG IN THE  
MORNING WITH VSBY 1 NM OR LESS.    
WED NIGHT
 
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S  
1 FOOT AT 8 SECONDS.    
THU AND THU NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 4 SECONDS AND SE 1 FOOT  
AT 8 SECONDS.    
FRI
 
W WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS.   
FRI NIGHT THROUGH SAT NIGHT
 
E WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ233-260000-  
VINEYARD SOUND-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: S 3 FT AT 9 SECONDS AND SW 2 FT AT 4 SECONDS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 3 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.    
WED
 
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT  
AT 8 SECONDS AND SW 1 FOOT AT 5 SECONDS.    
WED NIGHT
 
W 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 S 2 FT AT  
7 SECONDS.    
THU
 
W 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 S 1 FOOT AT 7 SECONDS.   
THU NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ234-260000-  
BUZZARDS BAY-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING  
W AROUND 5 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT  
AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.    
WED
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT  
AT 8 SECONDS AND SW 1 FOOT AT 5 SECONDS.    
WED NIGHT
 
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND  
S 2 FT AT 7 SECONDS.    
THU
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS.   
THU NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND N 1 FOOT AT  
4 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS AROUND 2 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ235-260000-  
RHODE ISLAND SOUND-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
5 FT. WAVE DETAIL: S 5 FT AT 9 SECONDS AND SW 1 FOOT AT  
4 SECONDS. AREAS OF FOG THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING  
W 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT  
AT 9 SECONDS AND W 1 FOOT AT 4 SECONDS.    
WED
 
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT  
8 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W 2 FT AT  
4 SECONDS.    
THU AND THU NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND S 2 FT AT  
7 SECONDS.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND S 2 FT AT 8 SECONDS.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ237-260000-  
BLOCK ISLAND SOUND-  
705 AM EDT TUE MAR 25 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
TODAY
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
5 FT. WAVE DETAIL: S 5 FT AT 9 SECONDS AND W 2 FT AT 4 SECONDS.  
AREAS OF FOG THIS MORNING WITH VSBY 1 NM OR LESS.    
TONIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING  
W AROUND 5 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT  
AT 9 SECONDS AND W 2 FT AT 4 SECONDS.    
WED
 
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT  
8 SECONDS AND W 1 FOOT AT 3 SECONDS.    
WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W 2 FT AT  
3 SECONDS.    
THU AND THU NIGHT
 
SW 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 SE 2 FT AT  
7 SECONDS.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S 2 FT AT 7 SECONDS.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ230-260000-  
BOSTON HARBOR-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
TONIGHT
 
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
WED
 
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
WED NIGHT
 
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH  
GUSTS UP TO 20 KT AFTER MIDNIGHT. WAVES 1 FOOT OR LESS, THEN  
AROUND 2 FT AFTER MIDNIGHT. A CHANCE OF RAIN IN THE EVENING.    
THU
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT.    
THU NIGHT
 
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.  
A CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. WAVES 1 FOOT OR LESS. A CHANCE OF SHOWERS.  
 
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.  
 

 
 
ANZ236-260000-  
NARRAGANSETT BAY-  
705 AM EDT TUE MAR 25 2025  
   
TODAY
 
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT.   
TONIGHT
 
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING  
NW AFTER MIDNIGHT. WAVES 2 TO 4 FT.    
WED
 
W WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.    
WED NIGHT
 
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. WAVES 2 TO 3 FT.    
THU AND THU NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES AROUND 2 FT.    
FRI
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT.    
FRI NIGHT THROUGH SAT NIGHT
 
SE WINDS 5 TO 10 KT WITH GUSTS UP  
TO 20 KT. WAVES AROUND 2 FT. A CHANCE OF SHOWERS.  
 
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/NWSBOSTON  
 
YOU CAN FOLLOW US ON TWITTER AT  
@NWSBOSTON  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MA Page
The Nexlab RI Page
The Nexlab NH Page
The Nexlab CT Page Main Text Page