687  
FZUS51 KBOX 211205  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
705 AM EST FRI FEB 21 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-220100-  
705 AM EST FRI FEB 21 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
LOW PRES PASSES EAST OF THE CANADIAN MARITIMES TODAY WITH HIGH PRES  
IN THE CENTRAL PLAINS CREATING GUSTY NW WINDS INTO TONIGHT. HIGH  
PRES TAKES CONTROL OF OUR WATERS THIS WEEKEND BEFORE IT MOVES EAST  
OF THE REGION BY EARLY NEXT WEEK.  
 

 
 
ANZ250-220100-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
 
 
   
TODAY
 
NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 5 FT AT 6 SECONDS AND S 1 FOOT AT  
10 SECONDS. LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: N 5 FT  
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS. LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT  
AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS. LIGHT FREEZING SPRAY IN  
THE MORNING.    
SAT NIGHT
 
SW WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND NE 1 FOOT AT  
6 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS.    
MON THROUGH TUE
 
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.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 4 FT. A CHANCE OF RAIN.  
 
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.  
 

 
 
ANZ251-220100-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS  
AROUND 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S 1 FOOT AT  
10 SECONDS. LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND SE 1 FOOT AT  
9 SECONDS. LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND  
SE 1 FOOT AT 9 SECONDS. LIGHT FREEZING SPRAY IN THE MORNING.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND NE 1 FOOT AT  
6 SECONDS.    
SUN AND SUN NIGHT
 
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 6 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS.  
 
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.  
 

 
 
ANZ231-220100-  
CAPE COD BAY-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND S 1 FOOT AT  
10 SECONDS. LIGHT FREEZING SPRAY THIS MORNING. A CHANCE OF  
FLURRIES THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 1 FOOT AT  
9 SECONDS. LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND  
SE 1 FOOT AT 9 SECONDS. LIGHT FREEZING SPRAY IN THE MORNING.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND N  
2 FT AT 6 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: W 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 6 SECONDS.    
MON THROUGH TUE
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 3 SECONDS.    
TUE NIGHT
 
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
RAIN.  
 
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.  
 

 
 
ANZ254-220100-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
 
 
   
TODAY
 
NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 5 FT AT 6 SECONDS AND S 2 FT AT 10 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING. A CHANCE OF FLURRIES THIS  
MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 5 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY AFTER MIDNIGHT.    
SAT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: N 4 FT AT 7 SECONDS AND S 1 FOOT AT  
10 SECONDS. LIGHT FREEZING SPRAY IN THE MORNING.    
SAT NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND N 2 FT AT  
7 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND NE 1 FOOT AT  
6 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 9 SECONDS AND SW  
2 FT AT 5 SECONDS.  
 
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.  
 

 
 
ANZ255-220100-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
 
 
   
TODAY
 
NW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: N 5 FT  
AT 6 SECONDS AND S 3 FT AT 9 SECONDS. LIGHT FREEZING SPRAY THIS  
MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: W 5 FT AT 7 SECONDS AND NE 2 FT AT 7 SECONDS.  
LIGHT FREEZING SPRAY AFTER MIDNIGHT.    
SAT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND NE 1 FOOT AT  
7 SECONDS. LIGHT FREEZING SPRAY IN THE MORNING.    
SAT NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND NE 1 FOOT AT  
8 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND NE 1 FOOT  
AT 8 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW 3 FT AT 5 SECONDS.  
 
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.  
 

 
 
ANZ256-220100-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
 
 
   
TODAY
 
NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: N 6 FT AT 5 SECONDS AND S 3 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND  
SE 1 FOOT AT 9 SECONDS. LIGHT FREEZING SPRAY IN THE MORNING.    
SAT NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT  
8 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: SW 4 FT AT 6 SECONDS AND E 1 FOOT AT 8 SECONDS.    
MON THROUGH TUE
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 4 FT AT 8 SECONDS AND SW 3 FT AT 4 SECONDS.    
TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 4 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.  
 

 
 
ANZ232-220100-  
NANTUCKET SOUND-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S 1 FOOT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND NE 2 FT AT 7 SECONDS.  
LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS  
AND NE 1 FOOT AT 7 SECONDS.    
SAT NIGHT
 
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND NE  
1 FOOT AT 8 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: W 2 FT AT 4 SECONDS AND NE 1 FOOT AT 7 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.  
WAVE DETAIL: S 2 FT AT 3 SECONDS AND S 2 FT AT 8 SECONDS.  
 
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.  
 

 
 
ANZ233-220100-  
VINEYARD SOUND-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND S 2 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS AND S 1 FOOT AT 9 SECONDS.  
LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS  
AND SE 1 FOOT AT 9 SECONDS.    
SAT NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND NE 1 FOOT AT  
8 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 3 FT AT 5 SECONDS AND NE 1 FOOT AT 8 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.  
WAVE DETAIL: SW 3 FT AT 6 SECONDS.  
 
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.  
 

 
 
ANZ234-220100-  
BUZZARDS BAY-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT AT 9 SECONDS.  
LIGHT FREEZING SPRAY IN THE EVENING.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS  
AND SE 1 FOOT AT 9 SECONDS.    
SAT NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND NE 1 FOOT AT  
8 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SW 2 FT AT 5 SECONDS AND NE 1 FOOT AT 7 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.  
WAVE DETAIL: SW 2 FT AT 5 SECONDS AND S 2 FT AT 8 SECONDS.  
 
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.  
 

 
 
ANZ235-220100-  
RHODE ISLAND SOUND-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND S 3 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND  
SE 1 FOOT AT 9 SECONDS.    
SAT NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND S 1 FOOT AT  
9 SECONDS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
WAVE DETAIL: S 4 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS.  
 
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.  
 

 
 
ANZ237-220100-  
BLOCK ISLAND SOUND-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND S 2 FT AT 9 SECONDS.  
LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW 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: NW 3 FT  
AT 4 SECONDS AND SE 2 FT AT 10 SECONDS. LIGHT FREEZING SPRAY.    
SAT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
SAT 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.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 5 SECONDS AND S 1 FOOT AT  
9 SECONDS.    
MON THROUGH TUE NIGHT
 
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.  
WAVE DETAIL: S 3 FT AT 6 SECONDS.  
 
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.  
 

 
 
ANZ230-220100-  
BOSTON HARBOR-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING
 
 
   
TODAY
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES  
AROUND 2 FT.    
TONIGHT
 
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. WAVES AROUND 2 FT.    
SAT
 
NW WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. GUSTS  
UP TO 25 KT. WAVES AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR  
LESS.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. WAVES AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS.    
SUN AND SUN NIGHT
 
W WINDS 10 TO 15 KT. WAVES AROUND 2 FT.    
MON THROUGH TUE 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.  
 

 
 
ANZ236-220100-  
NARRAGANSETT BAY-  
705 AM EST FRI FEB 21 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING
 
 
   
TODAY
 
NW WINDS AROUND 15 KT WITH GUSTS UP TO 30 KT. WAVES 2 TO  
3 FT. LIGHT FREEZING SPRAY THIS MORNING.    
TONIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES  
2 TO 3 FT.    
SAT
 
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. GUSTS UP  
TO 20 KT. WAVES AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. WAVES 2 TO 3 FT.    
SUN AND SUN NIGHT
 
W WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.    
MON THROUGH TUE NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 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.  
 

 
 
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