392  
FZUS51 KBOX 252303  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
703 PM EDT FRI JUL 25 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-261200-  
703 PM EDT FRI JUL 25 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
HIGH PRESSURE MOVES OFFSHORE FRIDAY MORNING, A COLD FRONT WILL MOVE  
INTO NEW ENGLAND DURING THE AFTERNOON, CROSSING THE WATERS OVERNIGHT  
INTO SATURDAY MORNING. LOW PRESSURE SYSTEM CROSSES THE WATERS MONDAY.  
 

 
 
ANZ250-261200-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT  
AT 4 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AND  
TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS,  
SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.    
SAT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E  
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT  
AT 4 SECONDS AND NE 2 FT AT 7 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
NE 2 FT AT 6 SECONDS AND S 1 FOOT AT 3 SECONDS.    
SUN
 
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND E 1 FOOT AT  
7 SECONDS.    
SUN NIGHT THROUGH MON NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE  
1 FOOT AT 8 SECONDS.    
TUE THROUGH WED
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E 1 FOOT AT  
8 SECONDS.    
WED NIGHT
 
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ251-261200-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
NW WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH GUSTS  
UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NW  
2 FT AT 3 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS  
AND TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY  
WINDS, SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.    
SAT
 
N WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE  
DETAIL: SE 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS  
UP TO 20 KT IN THE AFTERNOON. SEAS 1 FOOT OR LESS, THEN AROUND  
2 FT IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND E  
1 FOOT AT 6 SECONDS, BECOMING S 2 FT AT 3 SECONDS AND E 1 FOOT AT  
7 SECONDS.    
SUN NIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING  
SW 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S  
2 FT AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS.    
MON AND MON NIGHT
 
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SE 2 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.    
TUE THROUGH WED
 
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS AROUND 2 FT.    
WED NIGHT
 
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ231-261200-  
CAPE COD BAY-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS  
AND SE 1 FOOT AT 9 SECONDS. PATCHY FOG THIS EVENING. A CHANCE OF  
SHOWERS AND TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH  
GUSTY WINDS, SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.  
VSBY 1 TO 3 NM THIS EVENING.    
SAT
 
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING  
TO 5 TO 10 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N  
2 FT AT 4 SECONDS.    
SAT NIGHT
 
S WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE  
DETAIL: E 1 FOOT AT 4 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND NE  
1 FOOT AT 5 SECONDS.    
SUN NIGHT AND MON
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 6 SECONDS.    
MON NIGHT
 
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 8 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS AROUND 2 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ254-261200-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 5 SECONDS AND  
SE 2 FT AT 9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS AND TSTMS  
THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS, SMALL  
HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL. VSBY 1 NM OR LESS,  
INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S 3 FT AT  
6 SECONDS.    
SAT NIGHT
 
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND NE 2 FT AT  
6 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT  
AT 6 SECONDS AND S 1 FOOT AT 5 SECONDS.    
SUN NIGHT THROUGH MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND  
2 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E  
1 FOOT AT 8 SECONDS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ255-261200-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS  
AND SE 2 FT AT 9 SECONDS. PATCHY FOG THIS EVENING. A CHANCE OF  
SHOWERS AND TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH  
GUSTY WINDS, SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.  
VSBY 1 TO 3 NM THIS EVENING.    
SAT
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND NE 2 FT AT  
5 SECONDS.    
SAT NIGHT
 
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND E 2 FT AT  
6 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT  
AT 6 SECONDS.    
SUN NIGHT AND MON
 
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.    
MON NIGHT
 
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SW 2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ256-261200-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS  
AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS AND TSTMS THIS  
EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS, SMALL HAIL,  
FREQUENT LIGHTNING, AND HEAVY RAINFALL. VSBY 1 TO 3 NM THIS  
EVENING.    
SAT
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND SW 2 FT AT  
6 SECONDS.    
SAT NIGHT
 
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
2 FT AT 5 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT  
AT 8 SECONDS AND S 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN  
THE AFTERNOON.    
SUN NIGHT
 
S WINDS AROUND 10 KT, BECOMING SW AFTER MIDNIGHT.  
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND SE 2 FT AT  
8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.    
MON AND MON NIGHT
 
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT.  
WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE 2 FT AT 8 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ232-261200-  
NANTUCKET SOUND-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND  
SE 1 FOOT AT 9 SECONDS. PATCHY FOG THIS EVENING. A CHANCE OF  
SHOWERS AND TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH  
GUSTY WINDS, SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.  
VSBY 1 TO 3 NM THIS EVENING.    
SAT
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 1 FOOT  
AT 5 SECONDS.    
SAT NIGHT
 
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS  
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: E  
1 FOOT AT 6 SECONDS, BECOMING SE 1 FOOT AT 5 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT  
AT 6 SECONDS.    
SUN NIGHT THROUGH MON NIGHT
 
SW WINDS AROUND 10 KT. SEAS AROUND  
2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND E 1 FOOT AT  
7 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND E  
1 FOOT AT 8 SECONDS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ233-261200-  
VINEYARD SOUND-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT  
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS. SHOWERS AND TSTMS LIKELY  
THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS, SMALL  
HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL. VSBY 1 TO 3 NM THIS  
EVENING.    
SAT
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND NE 1 FOOT  
AT 3 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,  
THEN 1 FOOT OR LESS. WAVE DETAIL: SE 1 FOOT AT 5 SECONDS,  
BECOMING S 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE  
1 FOOT AT 7 SECONDS.    
SUN NIGHT THROUGH MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND  
2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
TUE THROUGH WED 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 SE  
1 FOOT AT 8 SECONDS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ234-261200-  
BUZZARDS BAY-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT  
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AND  
TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS,  
SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL. VSBY 1 TO  
3 NM THIS EVENING.    
SAT
 
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E IN  
THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT  
3 SECONDS AND SW 1 FOOT AT 5 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE  
DETAIL: E 1 FOOT AT 5 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE  
1 FOOT AT 7 SECONDS.    
SUN NIGHT THROUGH MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND  
2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE  
1 FOOT AT 8 SECONDS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ235-261200-  
RHODE ISLAND SOUND-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT. GUSTS  
UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS  
AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS AND TSTMS THIS  
EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS, SMALL HAIL,  
FREQUENT LIGHTNING, AND HEAVY RAINFALL. VSBY 1 TO 3 NM THIS  
EVENING.    
SAT
 
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E IN  
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS  
AND S 2 FT AT 6 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 6 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. WAVE DETAIL: S 1 FOOT AT 4 SECONDS AND SE  
1 FOOT AT 8 SECONDS, BECOMING S 2 FT AT 3 SECONDS AND SE 1 FOOT  
AT 8 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.    
SUN NIGHT
 
S WINDS AROUND 10 KT, BECOMING SW AFTER MIDNIGHT.  
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT  
AT 8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.    
MON AND MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 2 FT AT 3 SECONDS AND SE 1 FOOT AT 8 SECONDS.    
TUE THROUGH WED NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS AROUND 2 FT.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ237-261200-  
BLOCK ISLAND SOUND-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING N  
10 TO 15 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT  
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AND  
TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS,  
SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.    
SAT
 
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E IN  
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 5 SECONDS  
AND S 2 FT AT 6 SECONDS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 2 FT AT 6 SECONDS.    
SUN
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT  
AT 7 SECONDS AND S 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN  
THE AFTERNOON.    
SUN NIGHT
 
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: S 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT  
8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.    
MON AND MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SE 2 FT AT 8 SECONDS AND W 1 FOOT AT 3 SECONDS.    
TUE THROUGH WED
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS AROUND 2 FT.    
WED NIGHT
 
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ230-261200-  
BOSTON HARBOR-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT THIS EVENING.  
WAVES AROUND 2 FT THIS EVENING, THEN 1 FOOT OR LESS. A CHANCE OF  
SHOWERS AND TSTMS THIS EVENING. SOME TSTMS MAY BE SEVERE WITH  
GUSTY WINDS, SMALL HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.    
SAT
 
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. WAVES  
1 FOOT OR LESS.    
SAT NIGHT
 
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.  
WAVES 1 FOOT OR LESS.    
SUN
 
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT IN THE  
AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT IN THE  
AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON.    
SUN NIGHT
 
S WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT AFTER  
MIDNIGHT. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.  
A CHANCE OF SHOWERS IN THE EVENING.    
MON AND MON NIGHT
 
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
TUE THROUGH WED
 
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
WED NIGHT
 
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
ANZ236-261200-  
NARRAGANSETT BAY-  
703 PM EDT FRI JUL 25 2025  
   
TONIGHT
 
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING N  
AFTER MIDNIGHT. WAVES AROUND 2 FT. A CHANCE OF SHOWERS AND TSTMS  
THIS EVENING. SOME TSTMS MAY BE SEVERE WITH GUSTY WINDS, SMALL  
HAIL, FREQUENT LIGHTNING, AND HEAVY RAINFALL.    
SAT
 
NE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE  
AFTERNOON. WAVES AROUND 2 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE  
EVENING, THEN 1 FOOT OR LESS.    
SUN
 
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT  
IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON.    
SUN NIGHT
 
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.  
WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. A CHANCE  
OF SHOWERS IN THE EVENING.    
MON AND MON NIGHT
 
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
TUE THROUGH WED
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES AROUND 2 FT.    
WED NIGHT
 
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF  
SHOWERS.  
 
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.  
 
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.  
 

 
 
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