926  
FZUS51 KBOX 240205  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1005 PM EDT SUN MAR 23 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-241500-  
1005 PM EDT SUN MAR 23 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS  
 
A FRONTAL SYSTEM WILL CROSS THE REGION TONIGHT INTO MON. LOW PRES  
WILL MOVE TO THE MARITIMES TUE AND LINGER INTO WED. HIGH PRES BUILDS  
IN FOR THUR THEN A TROUGH OF LOW PRESSURE CROSSES THE REGION ON  
FRIDAY.  
 
 
 
ANZ250-241500-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
NW WINDS AROUND 10 KT, BECOMING E. SEAS 2 TO 3 FT.  
WAVE DETAIL: NW 2 FT AT 5 SECONDS AND N 2 FT AT 6 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO  
6 FT IN THE AFTERNOON. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND NW  
2 FT AT 4 SECONDS, BECOMING S 5 FT AT 5 SECONDS AND NE 1 FOOT AT  
5 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO AROUND 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE  
DETAIL: S 5 FT AT 6 SECONDS AND E 1 FOOT AT 11 SECONDS. PATCHY  
FOG IN THE EVENING. A CHANCE OF RAIN IN THE EVENING.    
TUE  
SW WINDS AROUND 10 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW 2 FT AT  
3 SECONDS.    
TUE NIGHT  
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND W  
2 FT AT 3 SECONDS.    
WED  
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT  
AT 3 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF RAIN.    
WED NIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 5 FT. A CHANCE OF RAIN IN THE EVENING.    
THU  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT.    
THU NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT.    
FRI AND FRI NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.  
 
 
 
ANZ251-241500-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
N WINDS 5 TO 10 KT, BECOMING E. SEAS 1 FOOT OR LESS.  
WAVE DETAIL: NW 1 FOOT AT 3 SECONDS AND N 1 FOOT AT 6 SECONDS.    
MON  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND W 1 FOOT AT  
3 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 5 TO 10 KT. GUSTS UP TO 25 KT IN THE  
EVENING. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND S  
2 FT AT 4 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF RAIN IN  
THE EVENING.    
TUE  
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW  
2 FT AT 3 SECONDS AND E 2 FT AT 8 SECONDS.    
TUE NIGHT  
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
S 2 FT AT 7 SECONDS AND E 2 FT AT 8 SECONDS.    
WED AND WED NIGHT  
NW 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 E 2 FT AT  
7 SECONDS. A CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ231-241500-  
CAPE COD BAY-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
NW WINDS 5 TO 10 KT, BECOMING SE. SEAS 1 FOOT OR  
LESS. WAVE DETAIL: NW 1 FOOT AT 5 SECONDS AND N 1 FOOT AT  
6 SECONDS.    
MON  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 2 FT AT 6 SECONDS.  
PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 3 FT AT 5 SECONDS AND E 2 FT AT 9 SECONDS. PATCHY FOG  
IN THE EVENING. RAIN LIKELY IN THE EVENING.   
TUE  
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS  
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT  
AT 8 SECONDS AND SE 2 FT AT 9 SECONDS.    
TUE NIGHT  
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
2 FT AT 9 SECONDS AND S 2 FT AT 9 SECONDS.    
WED AND WED NIGHT  
NW 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 SE 2 FT AT  
8 SECONDS. A CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ254-241500-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
TUESDAY MORNING...  
   
OVERNIGHT  
NW WINDS 5 TO 10 KT, BECOMING SE. SEAS 2 TO 3 FT.  
WAVE DETAIL: NW 3 FT AT 6 SECONDS AND N 2 FT AT 7 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 5 TO  
7 FT IN THE AFTERNOON. WAVE DETAIL: S 3 FT AT 8 SECONDS AND W  
2 FT AT 5 SECONDS, BECOMING S 6 FT AT 6 SECONDS AND N 2 FT AT  
6 SECONDS. PATCHY FOG. A CHANCE OF RAIN IN THE MORNING, THEN RAIN  
IN THE AFTERNOON WITH VSBY 1 TO 3 NM.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE  
DETAIL: S 6 FT AT 7 SECONDS AND SE 3 FT AT 9 SECONDS. PATCHY FOG  
IN THE EVENING. RAIN LIKELY IN THE EVENING.    
TUE  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT 9 SECONDS AND W 1 FOOT AT  
3 SECONDS.    
TUE NIGHT  
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 SE 3 FT AT 9 SECONDS.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 5 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND S 2 FT AT  
8 SECONDS. A CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ255-241500-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
TUESDAY MORNING...  
   
OVERNIGHT  
W WINDS 5 TO 10 KT, BECOMING S. SEAS 2 TO 4 FT. WAVE  
DETAIL: SW 3 FT AT 7 SECONDS AND N 1 FOOT AT 5 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 5 TO  
7 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW  
2 FT AT 5 SECONDS, BECOMING S 7 FT AT 6 SECONDS AND NE 1 FOOT AT  
6 SECONDS. PATCHY FOG. A CHANCE OF RAIN IN THE MORNING. RAIN IN  
THE AFTERNOON.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE  
DETAIL: S 7 FT AT 8 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY  
FOG IN THE EVENING. RAIN LIKELY IN THE EVENING.    
TUE  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT AT 9 SECONDS AND SE 1 FOOT AT  
9 SECONDS.    
TUE NIGHT  
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 SE 2 FT AT 9 SECONDS.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 5 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND S 3 FT AT  
8 SECONDS. A CHANCE OF RAIN.    
THU AND THU NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 5 FT.    
FRI  
W WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.  
 
 
 
ANZ256-241500-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
TUESDAY MORNING...  
   
OVERNIGHT  
W WINDS AROUND 10 KT, BECOMING S. SEAS 2 TO 3 FT.  
WAVE DETAIL: W 2 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.    
MON  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT, BUILDING TO 6 TO 7 FT IN THE AFTERNOON. WAVE DETAIL: S 5 FT  
AT 7 SECONDS AND SW 2 FT AT 4 SECONDS, BECOMING S 7 FT AT  
7 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. A CHANCE OF  
RAIN IN THE MORNING. RAIN IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
BECOMING W 10 TO 15 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE  
DETAIL: S 7 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE  
OF RAIN IN THE EVENING.    
TUE  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO  
6 FT. WAVE DETAIL: S 6 FT AT 9 SECONDS AND W 1 FOOT AT 4 SECONDS.   
TUE NIGHT  
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 9 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF  
RAIN AFTER MIDNIGHT.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 5 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND SE 3 FT AT  
7 SECONDS. A CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 20 TO 25 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.  
 
 
 
ANZ232-241500-  
NANTUCKET SOUND-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
W WINDS AROUND 5 KT, BECOMING S. SEAS 1 FOOT OR  
LESS. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND N 1 FOOT AT  
4 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO  
5 FT IN THE AFTERNOON. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SW  
1 FOOT AT 4 SECONDS, BECOMING SW 4 FT AT 5 SECONDS AND NE 1 FOOT  
AT 6 SECONDS. PATCHY FOG. A CHANCE OF RAIN IN THE MORNING, THEN  
RAIN IN THE AFTERNOON WITH VSBY 1 TO 3 NM.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT,  
SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT AT  
7 SECONDS AND SW 2 FT AT 4 SECONDS, BECOMING SW 2 FT AT 3 SECONDS  
AND S 2 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING. RAIN LIKELY  
IN THE EVENING.   
TUE  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND S 2 FT AT  
9 SECONDS.    
TUE NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: W 2 FT AT 4 SECONDS AND S 2 FT AT 9 SECONDS.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 2 FT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE  
OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ233-241500-  
VINEYARD SOUND-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
W WINDS AROUND 5 KT, BECOMING S. SEAS 1 FOOT OR  
LESS. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND N 1 FOOT AT  
5 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO  
5 FT IN THE AFTERNOON. WAVE DETAIL: S 3 FT AT 5 SECONDS AND N  
1 FOOT AT 6 SECONDS, BECOMING SW 5 FT AT 5 SECONDS AND E 1 FOOT  
AT 10 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.   
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE  
DETAIL: SW 4 FT AT 8 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY  
FOG IN THE EVENING. RAIN LIKELY IN THE EVENING.    
TUE  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT  
AT 9 SECONDS AND SW 2 FT AT 4 SECONDS.    
TUE NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 3 FT AT 9 SECONDS AND SW 2 FT AT 4 SECONDS.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 2 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS. A CHANCE OF  
RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 20 TO 25 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.  
 
 
 
ANZ234-241500-  
BUZZARDS BAY-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
W WINDS AROUND 5 KT, BECOMING S. SEAS 1 FOOT OR  
LESS. WAVE DETAIL: W 1 FOOT AT 4 SECONDS AND N 1 FOOT AT  
5 SECONDS.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO  
5 FT IN THE AFTERNOON. WAVE DETAIL: S 3 FT AT 5 SECONDS AND N  
1 FOOT AT 6 SECONDS, BECOMING SW 4 FT AT 5 SECONDS AND NE 1 FOOT  
AT 5 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO AROUND 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT,  
SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT  
8 SECONDS AND SW 1 FOOT AT 4 SECONDS, BECOMING SW 3 FT AT  
8 SECONDS AND SW 1 FOOT AT 3 SECONDS. PATCHY FOG IN THE EVENING.  
RAIN LIKELY IN THE EVENING.    
TUE  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW  
3 FT AT 4 SECONDS AND SW 3 FT AT 8 SECONDS.    
TUE NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE  
DETAIL: SW 3 FT AT 4 SECONDS AND S 2 FT AT 8 SECONDS.    
WED AND WED NIGHT  
NW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SW 2 FT AT 3 SECONDS AND S 2 FT AT 8 SECONDS. A CHANCE OF  
RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ235-241500-  
RHODE ISLAND SOUND-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
W WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT. SEAS  
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND S 2 FT AT  
8 SECONDS.    
MON  
S WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT IN THE  
AFTERNOON. SEAS 2 TO 4 FT, BUILDING TO 5 TO 7 FT IN THE  
AFTERNOON. WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 1 FOOT AT  
10 SECONDS, BECOMING S 7 FT AT 7 SECONDS AND E 1 FOOT AT  
10 SECONDS. PATCHY FOG. RAIN. VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE  
DETAIL: S 6 FT AT 8 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY  
FOG IN THE EVENING. A CHANCE OF RAIN IN THE EVENING.    
TUE  
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT  
AT 9 SECONDS AND SW 1 FOOT AT 2 SECONDS.    
TUE NIGHT  
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 AND WED NIGHT  
NW 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. A CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 20 TO 25 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.  
 
 
 
ANZ237-241500-  
BLOCK ISLAND SOUND-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
LATE MONDAY NIGHT...  
   
OVERNIGHT  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT. SEAS  
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND S 2 FT AT  
8 SECONDS. A CHANCE OF RAIN.    
MON  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT  
AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG. RAIN.   
MON NIGHT  
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE  
EVENING. SEAS 4 TO 6 FT. WAVE DETAIL: SE 6 FT AT 7 SECONDS.  
PATCHY FOG IN THE EVENING. A CHANCE OF RAIN IN THE EVENING.    
TUE  
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 9 SECONDS AND W 2 FT AT  
4 SECONDS.    
TUE NIGHT  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE  
DETAIL: S 5 FT AT 9 SECONDS AND W 2 FT AT 3 SECONDS.    
WED  
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 8 SECONDS AND  
SE 2 FT AT 7 SECONDS. A CHANCE OF RAIN.    
WED NIGHT  
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ230-241500-  
BOSTON HARBOR-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
MONDAY EVENING...  
   
OVERNIGHT  
N WINDS AROUND 5 KT, BECOMING SE. WAVES 1 FOOT OR  
LESS.    
MON  
SE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. PATCHY FOG. RAIN.  
VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE  
EVENING. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.  
PATCHY FOG IN THE EVENING. A CHANCE OF RAIN IN THE EVENING.    
TUE  
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
WAVES AROUND 2 FT.    
TUE NIGHT  
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE  
EVENING, THEN 1 FOOT OR LESS.    
WED AND WED NIGHT  
W WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A  
CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 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.  
 
 
 
ANZ236-241500-  
NARRAGANSETT BAY-  
1005 PM EDT SUN MAR 23 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT MONDAY THROUGH  
MONDAY EVENING...  
   
OVERNIGHT  
W WINDS AROUND 5 KT, BECOMING S. WAVES AROUND 2 FT.    
MON  
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. WAVES 3 TO 5 FT. PATCHY FOG. RAIN.  
VSBY 1 TO 3 NM IN THE AFTERNOON.    
MON NIGHT  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT,  
BECOMING W 5 TO 10 KT AFTER MIDNIGHT. WAVES 3 TO 5 FT. PATCHY FOG  
IN THE EVENING. A CHANCE OF RAIN IN THE EVENING.    
TUE  
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
WAVES 2 TO 4 FT.    
TUE NIGHT  
W WINDS 10 TO 15 KT, DIMINISHING TO AROUND 5 KT  
AFTER MIDNIGHT. WAVES 2 TO 4 FT.    
WED AND WED NIGHT  
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. A  
CHANCE OF RAIN.    
THU THROUGH FRI NIGHT  
NW WINDS 10 TO 15 KT WITH GUSTS UP TO  
25 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  
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