908  
FZUS51 KBOX 291103  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
703 AM EDT THU MAY 29 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-300000-  
703 AM EDT THU MAY 29 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS  
 
LOW PRESSURE MOVES NE FROM THE MID ATLANTIC COAST AND TRACKS ACROSS  
THE WATERS TODAY. ANOTHER LOW PRESSURE WILL TRACK ACROSS THE REGION  
ON SATURDAY, PUSHING A COLD FRONT ACROSS THE WATERS LATE IN THE DAY.  
HIGH PRESSURE RETURNS TO THE WATERS BY TUESDAY INTO WEDNESDAY.  
 
 
 
ANZ250-300000-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
S WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE 2 FT AT  
10 SECONDS. A SLIGHT CHANCE OF SHOWERS THIS MORNING. A CHANCE OF  
SHOWERS THIS AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT  
NE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND S 1 FOOT AT  
3 SECONDS.    
FRI  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT  
AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW  
1 FOOT AT 3 SECONDS. SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
S WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 3 TO 5 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND S 1 FOOT AT  
3 SECONDS. SHOWERS LIKELY.    
SAT NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 FT. WAVE DETAIL: SE 4 FT AT 10 SECONDS AND SW 2 FT AT  
3 SECONDS. A CHANCE OF SHOWERS.    
SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT. A CHANCE OF SHOWERS.    
SUN NIGHT THROUGH MON NIGHT  
SW 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.  
 
 
 
ANZ251-300000-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
S WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. SEAS  
1 FOOT OR LESS, THEN AROUND 2 FT THIS AFTERNOON. WAVE DETAIL: S  
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS, BECOMING SE 2 FT  
AT 10 SECONDS AND SE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS.  
VSBY 1 TO 3 NM THIS AFTERNOON.    
TONIGHT  
NE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND SE 1 FOOT AT  
3 SECONDS.    
FRI  
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND SW 1 FOOT  
AT 2 SECONDS.    
FRI NIGHT  
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 7 SECONDS AND S 1 FOOT AT 3 SECONDS. A CHANCE OF  
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
SE WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND S 1 FOOT AT  
3 SECONDS. SHOWERS LIKELY.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:  
SE 2 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF  
SHOWERS.    
SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. A CHANCE OF SHOWERS.    
SUN NIGHT THROUGH MON NIGHT  
SW WINDS 10 TO 15 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.  
 
 
 
ANZ231-300000-  
CAPE COD BAY-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: SE 1 FOOT AT 2 SECONDS AND SE  
1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS. VSBY 1 NM OR LESS THIS  
AFTERNOON.    
TONIGHT  
N WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS.    
FRI  
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND SW 1 FOOT  
AT 2 SECONDS.    
FRI NIGHT  
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 7 SECONDS AND S 1 FOOT AT 3 SECONDS. A CHANCE OF  
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. VSBY  
1 NM OR LESS IN THE EVENING.    
SAT  
S WINDS AROUND 10 KT, BECOMING SW WITH GUSTS UP TO 20 KT  
IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT AT  
6 SECONDS AND S 1 FOOT AT 2 SECONDS. SHOWERS LIKELY.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS AROUND 3 FT. WAVE DETAIL: S 2 FT AT 8 SECONDS AND  
SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS.    
SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
3 FT. A CHANCE OF SHOWERS.    
SUN NIGHT THROUGH MON 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.  
 
 
 
ANZ254-300000-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
703 AM EDT THU MAY 29 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING  
THROUGH LATE TONIGHT...  
   
TODAY  
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND S 2 FT AT 3 SECONDS.  
A CHANCE OF SHOWERS THIS MORNING, THEN SHOWERS LIKELY THIS  
AFTERNOON. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS THIS  
AFTERNOON.    
TONIGHT  
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS.    
FRI  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT  
AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S  
4 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. SHOWERS LIKELY  
AFTER MIDNIGHT.    
SAT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT, BUILDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: SE  
3 FT AT 7 SECONDS AND S 2 FT AT 4 SECONDS, BECOMING S 5 FT AT  
8 SECONDS AND SW 2 FT AT 4 SECONDS. SHOWERS LIKELY, MAINLY IN THE  
MORNING.    
SAT NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
5 TO 7 FT. WAVE DETAIL: S 6 FT AT 9 SECONDS AND SW 1 FOOT AT  
4 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO  
7 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 FT.    
MON AND MON NIGHT  
SW WINDS 5 TO 10 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.  
 
 
 
ANZ255-300000-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
703 AM EDT THU MAY 29 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING  
THROUGH LATE TONIGHT...  
   
TODAY  
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND S 2 FT AT 4 SECONDS.  
SHOWERS LIKELY. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS THIS  
AFTERNOON.    
TONIGHT  
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S  
5 FT AT 8 SECONDS.    
FRI  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT  
AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S  
4 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. VSBY 1 NM OR  
LESS IN THE EVENING.    
SAT  
S 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 SW 2 FT AT 5 SECONDS.  
SHOWERS LIKELY, MAINLY IN THE MORNING.    
SAT NIGHT  
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS  
6 TO 8 FT. WAVE DETAIL: S 8 FT AT 9 SECONDS AND SW 1 FOOT AT  
3 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO  
7 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.   
MON AND MON NIGHT  
SW WINDS 5 TO 10 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.  
 
 
 
ANZ256-300000-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
703 AM EDT THU MAY 29 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING  
THROUGH LATE TONIGHT...  
   
TODAY  
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND S 2 FT AT 4 SECONDS.  
SHOWERS LIKELY, MAINLY THIS MORNING. VSBY 1 TO 3 NM, DECREASING  
TO 1 NM OR LESS THIS AFTERNOON.    
TONIGHT  
NW WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS  
4 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS.    
FRI  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT  
AT 8 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL:  
S 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN  
SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS, INCREASING TO 1 TO  
3 NM AFTER MIDNIGHT.    
SAT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT, BUILDING TO 5 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: S 5 FT  
AT 7 SECONDS AND S 1 FOOT AT 4 SECONDS, BECOMING S 7 FT AT  
8 SECONDS AND SW 1 FOOT AT 4 SECONDS. SHOWERS LIKELY, MAINLY IN  
THE MORNING.    
SAT NIGHT  
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS  
6 TO 7 FT. WAVE DETAIL: S 7 FT AT 9 SECONDS AND SW 1 FOOT AT  
3 SECONDS. A CHANCE OF SHOWERS.   
SUN  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO  
7 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.   
MON AND MON NIGHT  
SW WINDS 5 TO 10 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.  
 
 
 
ANZ232-300000-  
NANTUCKET SOUND-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS. SHOWERS LIKELY. VSBY  
1 TO 3 NM, DECREASING TO 1 NM OR LESS THIS AFTERNOON.    
TONIGHT  
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
2 FT AT 7 SECONDS AND SW 1 FOOT AT 2 SECONDS.    
FRI  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND S 2 FT AT  
7 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SW 2 FT AT 3 SECONDS AND S 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. VSBY 1 NM OR  
LESS IN THE EVENING.    
SAT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE 2 FT AT 6 SECONDS.  
SHOWERS LIKELY, MAINLY IN THE MORNING.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND S  
2 FT AT 9 SECONDS. A CHANCE OF SHOWERS.    
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
4 FT. A CHANCE OF SHOWERS.    
SUN NIGHT AND MON  
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO  
15 KT. SEAS 2 TO 4 FT.    
MON NIGHT  
SW 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.  
 
 
 
ANZ233-300000-  
VINEYARD SOUND-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS AND SE 1 FOOT AT  
3 SECONDS. SHOWERS LIKELY. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR  
LESS THIS AFTERNOON.    
TONIGHT  
NW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND W 1 FOOT AT  
2 SECONDS.    
FRI  
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: S  
2 FT AT 8 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
FRI NIGHT  
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S  
2 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS IN  
THE EVENING.    
SAT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS.  
SHOWERS LIKELY, MAINLY IN THE MORNING.    
SAT NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND SW 2 FT AT  
5 SECONDS. A CHANCE OF SHOWERS.   
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.   
MON AND MON NIGHT  
SW WINDS 10 TO 15 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.  
 
 
 
ANZ234-300000-  
BUZZARDS BAY-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS. SHOWERS LIKELY. VSBY  
1 TO 3 NM.    
TONIGHT  
NW WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT  
2 SECONDS.    
FRI  
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 2 FT AT 8 SECONDS.    
FRI NIGHT  
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S  
2 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS IN  
THE EVENING.    
SAT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND SW 2 FT AT 4 SECONDS.  
SHOWERS LIKELY.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND SW  
2 FT AT 4 SECONDS. A CHANCE OF SHOWERS.    
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
4 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 4 FT.    
MON AND MON NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 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.  
 
 
 
ANZ235-300000-  
RHODE ISLAND SOUND-  
703 AM EDT THU MAY 29 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
   
TODAY  
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND S 2 FT AT 4 SECONDS.  
SHOWERS LIKELY. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS THIS  
AFTERNOON.    
TONIGHT  
NW WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS.    
FRI  
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT  
AT 8 SECONDS.    
FRI NIGHT  
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. VSBY 1 NM OR  
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT, BUILDING TO 4 TO 6 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT  
AT 6 SECONDS, BECOMING S 6 FT AT 8 SECONDS AND W 1 FOOT AT  
5 SECONDS. SHOWERS, MAINLY IN THE MORNING WITH VSBY 1 TO 3 NM.    
SAT NIGHT  
SW WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 9 SECONDS AND SW 1 FOOT AT  
4 SECONDS. A CHANCE OF SHOWERS.   
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
5 FT. A CHANCE OF SHOWERS.    
SUN NIGHT AND MON  
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO  
15 KT. SEAS 3 TO 5 FT.    
MON NIGHT  
SW WINDS 10 TO 15 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.  
 
 
 
ANZ237-300000-  
BLOCK ISLAND SOUND-  
703 AM EDT THU MAY 29 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON  
THROUGH LATE TONIGHT...  
   
TODAY  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS MORNING.  
SEAS 2 TO 4 FT. WAVE DETAIL: SE 4 FT AT 8 SECONDS AND S 2 FT AT  
4 SECONDS. SHOWERS LIKELY, MAINLY THIS MORNING. VSBY 1 TO 3 NM,  
DECREASING TO 1 NM OR LESS THIS AFTERNOON.    
TONIGHT  
NW WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS  
2 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS.    
FRI  
SW 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.    
FRI NIGHT  
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS  
IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS,  
INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND SW 1 FOOT AT  
4 SECONDS. SHOWERS.   
SAT NIGHT  
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 9 SECONDS AND W  
1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO  
5 FT. A CHANCE OF SHOWERS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 5 FT.    
MON AND MON NIGHT  
SW WINDS 5 TO 10 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.  
 
 
 
ANZ230-300000-  
BOSTON HARBOR-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
SE WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. WAVES  
1 FOOT OR LESS. A SLIGHT CHANCE OF SHOWERS. VSBY 1 TO 3 NM THIS  
AFTERNOON.    
TONIGHT  
N WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. WAVES  
1 FOOT OR LESS.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
FRI NIGHT  
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE  
OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.    
SAT  
SE WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. WAVES  
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. SHOWERS.   
SAT NIGHT  
SW WINDS AROUND 10 KT. WAVES AROUND 2 FT. A CHANCE  
OF SHOWERS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT. A CHANCE OF SHOWERS.    
SUN NIGHT THROUGH MON 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.  
 
 
 
ANZ236-300000-  
NARRAGANSETT BAY-  
703 AM EDT THU MAY 29 2025  
   
TODAY  
SE WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. WAVES  
2 TO 4 FT. SHOWERS LIKELY, MAINLY THIS MORNING. VSBY 1 TO 3 NM.    
TONIGHT  
NW WINDS AROUND 5 KT, BECOMING SW AFTER MIDNIGHT.  
WAVES 2 TO 3 FT.    
FRI  
SW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.    
FRI NIGHT  
S WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. A CHANCE OF  
SHOWERS IN THE EVENING, THEN SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR  
LESS, INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT  
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. WAVES 2 TO 4 FT. SHOWERS.   
SAT NIGHT  
SW WINDS 10 TO 15 KT. WAVES 2 TO 4 FT. A CHANCE OF  
SHOWERS.    
SUN  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO  
4 FT. A CHANCE OF SHOWERS.    
SUN NIGHT THROUGH MON NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. WAVES 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.  
 
 
 
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  
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