209  
FZUS51 KBOX 170004  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
703 PM EST TUE DEC 16 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-171300-  
703 PM EST TUE DEC 16 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS  
 
HIGH PRES MOVES WELL OFFSHORE BY WED. LOW PRES AND ITS ASSOCIATED  
COLD FRONT IS EXPECTED TO RESULT IN GALE FORCE WINDS LATE THU INTO  
FRI. WINDS COULD REACH THE HIGHER END OF GALE FORCE CRITERIA LATE  
FRI INTO SAT MORNING.  
 
 
 
ANZ250-171300-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM MIDNIGHT EST TONIGHT THROUGH LATE  
WEDNESDAY NIGHT...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 35 KT. SEAS 3 TO 4 FT, BUILDING TO 4 TO  
6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE  
1 FOOT AT 11 SECONDS, BECOMING SW 6 FT AT 5 SECONDS AND SE 1 FOOT  
AT 11 SECONDS.   
WED  
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 5 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT  
AFTER MIDNIGHT. GUSTS UP TO 35 KT. SEAS 3 TO 5 FT. WAVE DETAIL: W  
5 FT AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 15 TO 20 KT WITH GUSTS UP  
TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 40 KT. SEAS  
5 TO 7 FT. WAVE DETAIL: S 6 FT AT 6 SECONDS AND SE 1 FOOT AT  
10 SECONDS. RAIN LIKELY AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 50 KT. SEAS 7 TO  
10 FT. WAVE DETAIL: SE 7 FT AT 10 SECONDS AND S 6 FT AT  
6 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS  
6 TO 9 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 5 FT.    
SUN NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
5 TO 7 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.  
 
 
 
ANZ251-171300-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM MIDNIGHT EST TONIGHT THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT  
AT 4 SECONDS AND E 1 FOOT AT 11 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 1 FOOT AT  
11 SECONDS.    
WED NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN 2 TO 3 FT IN  
THE AFTERNOON. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND SE 1 FOOT  
AT 10 SECONDS, BECOMING S 2 FT AT 3 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
THU NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 40 KT AFTER MIDNIGHT.  
SEAS 3 TO 5 FT. WAVE DETAIL: SE 5 FT AT 5 SECONDS AND SE 1 FOOT  
AT 11 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY  
AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT, BECOMING SW 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 45 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SE  
6 FT AT 7 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS  
4 TO 6 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT.    
SAT NIGHT THROUGH SUN NIGHT  
W WINDS AROUND 15 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.  
 
 
 
ANZ231-171300-  
CAPE COD BAY-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM MIDNIGHT EST TONIGHT THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT  
AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: W  
3 FT AT 4 SECONDS AND S 1 FOOT AT 10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT  
AT 3 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 40 KT AFTER MIDNIGHT.  
SEAS 2 TO 3 FT, BUILDING TO 3 TO 5 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS, BECOMING  
S 4 FT AT 4 SECONDS AND SE 1 FOOT AT 12 SECONDS. RAIN LIKELY  
AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT, BECOMING SW 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 45 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SE  
5 FT AT 8 SECONDS AND S 4 FT AT 4 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
5 TO 7 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
6 FT.    
SAT NIGHT AND SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT.    
SUN NIGHT  
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 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.  
 
 
 
ANZ254-171300-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM MIDNIGHT EST TONIGHT THROUGH LATE  
WEDNESDAY NIGHT...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT  
AT 5 SECONDS AND SE 1 FOOT AT 11 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT  
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: W  
6 FT AT 6 SECONDS AND S 3 FT AT 10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT AT  
6 SECONDS AND S 2 FT AT 10 SECONDS.    
THU NIGHT  
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 40 KT. SEAS 5 TO 7 FT. WAVE DETAIL: S 6 FT  
AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS. A CHANCE OF RAIN AFTER  
MIDNIGHT.    
FRI AND FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.  
SEAS 8 TO 11 FT. WAVE DETAIL: S 11 FT AT 10 SECONDS AND SW 9 FT  
AT 7 SECONDS. RAIN. VSBY 1 TO 3 NM.    
SAT  
W WINDS 20 TO 25 KT. SEAS 7 TO 10 FT.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 4 TO 6 FT.    
SUN NIGHT  
W WINDS 15 TO 20 KT. SEAS 5 TO 7 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.  
 
 
 
ANZ255-171300-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH LATE  
WEDNESDAY NIGHT...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO  
6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE  
1 FOOT AT 11 SECONDS, BECOMING SW 6 FT AT 6 SECONDS AND SE 1 FOOT  
AT 10 SECONDS.   
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO  
7 FT, BUILDING TO 6 TO 9 FT IN THE AFTERNOON. WAVE DETAIL: SW  
7 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING SW 9 FT  
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, BECOMING  
NW 15 TO 20 KT WITH GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 6 TO  
9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: SW 9 FT  
AT 8 SECONDS AND S 1 FOOT AT 9 SECONDS, BECOMING SW 7 FT AT  
8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT  
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 25 TO 30 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
SEAS 4 TO 6 FT, BUILDING TO 5 TO 8 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 6 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING  
S 8 FT AT 6 SECONDS AND SE 1 FOOT AT 12 SECONDS. RAIN LIKELY  
AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 50 KT, BECOMING SW  
WITH GUSTS UP TO 40 KT IN THE AFTERNOON. SEAS 8 TO 11 FT,  
BUILDING TO 10 TO 13 FT IN THE AFTERNOON. WAVE DETAIL: S 11 FT AT  
8 SECONDS AND SE 5 FT AT 13 SECONDS, BECOMING S 13 FT AT  
10 SECONDS AND SW 10 FT AT 7 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 30 TO 35 KT, BECOMING 25 TO 35 KT AFTER  
MIDNIGHT. GUSTS UP TO 45 KT. SEAS 9 TO 13 FT. A CHANCE OF RAIN IN  
THE EVENING.    
SAT  
W WINDS 25 TO 30 KT. SEAS 7 TO 10 FT.    
SAT NIGHT THROUGH SUN NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP  
TO 30 KT. SEAS 5 TO 8 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.  
 
 
 
ANZ256-171300-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH LATE  
WEDNESDAY NIGHT...  
   
TONIGHT  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT  
11 SECONDS.    
WED  
SW WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT IN THE  
AFTERNOON. SEAS 5 TO 8 FT, BUILDING TO 7 TO 8 FT IN THE  
AFTERNOON. WAVE DETAIL: SW 8 FT AT 7 SECONDS AND SE 1 FOOT AT  
10 SECONDS, BECOMING SW 8 FT AT 8 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT,  
DIMINISHING TO 15 TO 20 KT WITH GUSTS UP TO 25 KT AFTER MIDNIGHT.  
SEAS 6 TO 9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE  
DETAIL: W 9 FT AT 8 SECONDS AND S 3 FT AT 9 SECONDS, BECOMING SW  
7 FT AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU  
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS  
UP TO 20 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW  
5 FT AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER  
MIDNIGHT. GUSTS UP TO 45 KT. SEAS 4 TO 6 FT, BUILDING TO 6 TO  
9 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND SE  
1 FOOT AT 10 SECONDS, BECOMING S 8 FT AT 7 SECONDS AND SE 1 FOOT  
AT 12 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN RAIN LIKELY  
AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.    
FRI  
S WINDS 25 TO 35 KT, BECOMING SW 25 TO 30 KT IN THE  
AFTERNOON. GUSTS UP TO 50 KT. SEAS 9 TO 13 FT, BUILDING TO 11 TO  
13 FT IN THE AFTERNOON. WAVE DETAIL: SE 12 FT AT 12 SECONDS AND S  
11 FT AT 8 SECONDS, BECOMING S 13 FT AT 10 SECONDS AND SW 3 FT AT  
6 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT. SEAS  
11 TO 13 FT, SUBSIDING TO 9 TO 13 FT AFTER MIDNIGHT. A CHANCE OF  
RAIN IN THE EVENING.    
SAT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO  
9 FT.    
SAT NIGHT THROUGH SUN NIGHT  
NW WINDS 20 TO 25 KT WITH GUSTS UP  
TO 30 KT. SEAS 5 TO 8 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.  
 
 
 
ANZ232-171300-  
NANTUCKET SOUND-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 3 TO 5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND S 1 FOOT AT  
10 SECONDS.    
THU  
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: SW 2 FT  
AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 15 TO 20 KT, INCREASING TO 25 TO 30 KT AFTER  
MIDNIGHT. GUSTS UP TO 40 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO  
6 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND SE  
1 FOOT AT 11 SECONDS, BECOMING S 5 FT AT 5 SECONDS AND SE 1 FOOT  
AT 13 SECONDS. RAIN LIKELY AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT. SEAS 5 TO  
8 FT. WAVE DETAIL: S 6 FT AT 6 SECONDS AND S 4 FT AT 10 SECONDS.  
RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS  
5 TO 8 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT.    
SUN NIGHT  
W WINDS 15 TO 20 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.  
 
 
 
ANZ233-171300-  
VINEYARD SOUND-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT  
AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 4 TO 6 FT, SUBSIDING TO 2 TO 4 FT AFTER MIDNIGHT. WAVE  
DETAIL: SW 6 FT AT 7 SECONDS AND S 1 FOOT AT 10 SECONDS, BECOMING  
SW 4 FT AT 8 SECONDS AND S 1 FOOT AT 10 SECONDS.    
THU  
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: SW 3 FT  
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 25 TO 30 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
SEAS 2 TO 4 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 4 FT AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING  
S 5 FT AT 6 SECONDS AND SE 1 FOOT AT 13 SECONDS. A CHANCE OF RAIN  
IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 50 KT, BECOMING SW  
WITH GUSTS UP TO 40 KT IN THE AFTERNOON. SEAS 6 TO 9 FT. WAVE  
DETAIL: S 9 FT AT 10 SECONDS AND S 7 FT AT 7 SECONDS. RAIN. VSBY  
1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS  
5 TO 8 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.    
SAT NIGHT THROUGH SUN NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP  
TO 30 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.  
 
 
 
ANZ234-171300-  
BUZZARDS BAY-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT  
AT 5 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
WED  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 5 TO 10 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 3 TO 5 FT, SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. WAVE  
DETAIL: SW 5 FT AT 7 SECONDS AND S 1 FOOT AT 10 SECONDS, BECOMING  
SW 3 FT AT 8 SECONDS AND S 1 FOOT AT 10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT  
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 25 TO 30 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT 11 SECONDS, BECOMING  
S 5 FT AT 5 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF RAIN  
IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT WITH VSBY 1 TO  
3 NM.    
FRI  
S WINDS 25 TO 30 KT, BECOMING SW IN THE AFTERNOON. GUSTS  
UP TO 45 KT. SEAS 5 TO 8 FT. WAVE DETAIL: S 7 FT AT 10 SECONDS  
AND S 6 FT AT 6 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT  
AFTER MIDNIGHT. SEAS 5 TO 7 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.    
SAT NIGHT THROUGH SUN NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP  
TO 30 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.  
 
 
 
ANZ235-171300-  
RHODE ISLAND SOUND-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT  
AT 6 SECONDS AND SE 1 FOOT AT 11 SECONDS.    
WED  
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT, SUBSIDING TO  
3 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND S  
3 FT AT 9 SECONDS, BECOMING SW 5 FT AT 8 SECONDS AND S 3 FT AT  
10 SECONDS.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT  
AT 8 SECONDS AND SE 1 FOOT AT 10 SECONDS.    
THU NIGHT  
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 25 TO 30 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
SEAS 3 TO 5 FT, BUILDING TO 5 TO 8 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 5 FT AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING  
S 8 FT AT 7 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF RAIN  
IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT WITH VSBY 1 TO  
3 NM.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 50 KT, BECOMING SW  
WITH GUSTS UP TO 40 KT IN THE AFTERNOON. SEAS 8 TO 11 FT. WAVE  
DETAIL: S 11 FT AT 9 SECONDS. RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS  
7 TO 10 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.    
SAT NIGHT THROUGH SUN NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP  
TO 30 KT. SEAS 4 TO 6 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.  
 
 
 
ANZ237-171300-  
BLOCK ISLAND SOUND-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE 1 FOOT AT  
11 SECONDS.    
WED  
SW 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 SE 1 FOOT AT  
10 SECONDS.    
WED NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 4 TO 6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND S 3 FT AT  
9 SECONDS.    
THU  
S 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: SW  
3 FT AT 8 SECONDS AND SE 2 FT AT 10 SECONDS.    
THU NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE  
DETAIL: S 4 FT AT 6 SECONDS AND SE 1 FOOT AT 10 SECONDS, BECOMING  
S 7 FT AT 6 SECONDS AND SE 1 FOOT AT 11 SECONDS. A CHANCE OF RAIN  
IN THE EVENING, THEN RAIN AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.    
FRI  
S WINDS 25 TO 30 KT WITH GUSTS UP TO 50 KT, BECOMING SW  
20 TO 25 KT WITH GUSTS UP TO 40 KT IN THE AFTERNOON. SEAS 8 TO  
11 FT. WAVE DETAIL: S 9 FT AT 10 SECONDS AND S 8 FT AT 7 SECONDS.  
RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
7 TO 10 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
3 TO 5 FT.    
SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
6 FT.    
SUN NIGHT  
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 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.  
 
 
 
ANZ230-171300-  
BOSTON HARBOR-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. WAVES AROUND 2 FT.    
WED  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES AROUND  
2 FT.    
WED NIGHT  
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. GUSTS UP TO 25 KT. WAVES AROUND 2 FT.    
THU  
SW WINDS 5 TO 10 KT, BECOMING S 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.    
THU NIGHT AND FRI  
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 45 KT.  
WAVES AROUND 2 FT, EXCEPT 3 TO 5 FT AT THE OUTER HARBOR ENTRANCE.  
A CHANCE OF RAIN IN THE EVENING, THEN RAIN. VSBY 1 TO 3 NM.    
FRI NIGHT  
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. WAVES  
AROUND 2 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT THROUGH SUN NIGHT  
W WINDS 15 TO 20 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.  
 
 
 
ANZ236-171300-  
NARRAGANSETT BAY-  
703 PM EST TUE DEC 16 2025  
 
...GALE WARNING IN EFFECT FROM 7 AM EST WEDNESDAY THROUGH  
WEDNESDAY EVENING...  
   
TONIGHT  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT.   
WED  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO  
5 FT.    
WED NIGHT  
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT.   
THU  
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.    
THU NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 45 KT AFTER MIDNIGHT.  
WAVES 2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. A CHANCE  
OF RAIN IN THE EVENING, THEN RAIN AFTER MIDNIGHT WITH VSBY 1 TO  
3 NM.    
FRI  
S WINDS 25 TO 30 KT, BECOMING SW 20 TO 25 KT IN THE  
AFTERNOON. GUSTS UP TO 45 KT. WAVES 5 TO 8 FT. RAIN. VSBY 1 TO  
3 NM.    
FRI NIGHT  
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES  
5 TO 7 FT, SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. AT THE BAY  
ENTRANCE, WAVES 5 TO 7 FT. A CHANCE OF RAIN IN THE EVENING.    
SAT  
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO  
4 FT.    
SAT NIGHT AND SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
WAVES 3 TO 5 FT.    
SUN NIGHT  
W 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  
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