344  
FZUS51 KBOX 230518  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
116 AM EDT FRI APR 23 2021  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO  
25 NM  
 
ANZ200-231800-  
116 AM EDT FRI APR 23 2021  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
WINDS SLOWLY SUBSIDE INTO FRI AND SAT AS HIGH PRES BUILDS SOUTH OF  
THE WATERS. LOW PRES FROM THE MID ATLC COAST WILL LIFT NE ACROSS THE  
WATERS SUN, THEN MOVE TO THE MARITIMES MON. RIDGE BUILDS IN BEHIND  
THE DEPARTING LOW PRESSURE EARLY NEXT WEEK.  
 
FOR ADDITIONAL INFORMATION ON POSSIBLE HAZARDOUS WEATHER FOR THE  
WEEK AHEAD, PLEASE VISIT WWW.WEATHER.GOV/BOSTON/EHWO  
 

 
 
ANZ250-231800-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT UNTIL NOON EDT TODAY
 
 
   
REST OF TONIGHT
 
W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.  
SEAS 5 TO 7 FT.    
FRI
 
W WINDS 25 TO 30 KT, DIMINISHING TO 20 TO 25 KT IN THE  
AFTERNOON. SEAS 4 TO 7 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
3 TO 4 FT.    
SAT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
SEAS 2 TO 4 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT.    
SUN
 
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. SHOWERS.   
SUN NIGHT
 
N WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 7 FT. SHOWERS LIKELY.    
MON AND MON NIGHT
 
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO  
15 KT. GUSTS UP TO 30 KT. SEAS 4 TO 7 FT.    
TUE AND TUE NIGHT
 
SW WINDS 10 TO 15 KT. 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.  
 

 
 
ANZ251-231800-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT UNTIL NOON EDT TODAY
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.  
SEAS 3 TO 4 FT.    
FRI
 
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 35 KT. SEAS 2 TO 4 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT.    
SAT
 
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SHOWERS.    
SUN AND SUN NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 30 KT.  
SEAS 2 TO 4 FT. SHOWERS.   
MON AND MON NIGHT
 
NW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO  
15 KT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT.    
TUE AND TUE NIGHT
 
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 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.  
 

 
 
ANZ231-231800-  
CAPE COD BAY-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.  
SEAS 3 TO 5 FT.    
FRI
 
W WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT.    
SAT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. A CHANCE  
OF SHOWERS.    
SUN
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. SHOWERS.   
SUN NIGHT
 
N WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.   
MON AND MON NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT.    
TUE AND TUE 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.  
 

 
 
ANZ254-231800-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT UNTIL NOON EDT TODAY
 
 
   
REST OF TONIGHT
 
W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.  
SEAS 5 TO 8 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO  
8 FT.    
FRI NIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
DIMINISHING TO AROUND 15 KT WITH GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS 4 TO 7 FT.    
SAT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 4 FT.    
SUN
 
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. SHOWERS.   
SUN NIGHT
 
SW WINDS AROUND 15 KT, BECOMING NW AFTER MIDNIGHT.  
GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. A CHANCE OF SHOWERS.    
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT.    
MON NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
4 TO 7 FT.    
TUE AND TUE NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING SW. 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.  
 

 
 
ANZ255-231800-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS AROUND 25 KT WITH GUSTS UP TO 30 KT.  
SEAS 6 TO 9 FT.    
FRI
 
W WINDS AROUND 25 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO  
9 FT.    
FRI NIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,  
DIMINISHING TO AROUND 15 KT WITH GUSTS UP TO 20 KT AFTER  
MIDNIGHT. SEAS 5 TO 8 FT.    
SAT
 
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.    
SUN
 
SE WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
6 TO 9 FT. A CHANCE OF SHOWERS.    
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT.    
MON NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 FT.    
TUE
 
W WINDS AROUND 10 KT. SEAS 2 TO 4 FT.    
TUE NIGHT
 
SW WINDS 10 TO 15 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.  
 

 
 
ANZ256-231800-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS AROUND 25 KT WITH GUSTS UP TO 30 KT.  
SEAS 6 TO 8 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO  
8 FT.    
FRI NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT,  
BECOMING W AROUND 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.  
SEAS 5 TO 8 FT.    
SAT
 
W WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO  
5 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 4 FT. SHOWERS.   
SUN
 
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
6 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
6 TO 8 FT. A CHANCE OF SHOWERS.    
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT.    
MON NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 5 FT.    
TUE AND TUE 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.  
 

 
 
ANZ232-231800-  
NANTUCKET SOUND-  
116 AM EDT FRI APR 23 2021  
   
..GALE WARNING IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.  
SEAS 3 TO 5 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 3 TO  
5 FT.    
FRI 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 2 TO 4 FT.    
SAT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. A CHANCE OF  
SHOWERS.    
SUN
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. SHOWERS.   
SUN NIGHT
 
N WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.   
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
MON NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
2 TO 4 FT.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 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.  
 

 
 
ANZ233-231800-  
VINEYARD SOUND-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.  
SEAS 3 TO 5 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT.    
SAT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 2 TO 3 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. SHOWERS  
LIKELY.    
SUN
 
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. SHOWERS.   
SUN NIGHT
 
N WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.   
MON AND MON NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO AROUND 10 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT.    
TUE AND TUE NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT, THEN  
1 FOOT OR LESS.  
 
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.  
 

 
 
ANZ234-231800-  
BUZZARDS BAY-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.  
SEAS 3 TO 5 FT.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO AROUND 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT.    
SAT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. A CHANCE  
OF SHOWERS.    
SUN
 
SE WINDS 10 TO 15 KT, BECOMING E IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 3 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO  
30 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.  
 

 
 
ANZ235-231800-  
RHODE ISLAND SOUND-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.  
SEAS 4 TO 6 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
7 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT.    
SAT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
4 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. SHOWERS  
LIKELY.    
SUN
 
SE WINDS 15 TO 20 KT, BECOMING E IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 4 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
4 TO 6 FT. A CHANCE OF SHOWERS.    
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
MON NIGHT THROUGH TUE 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.  
 

 
 
ANZ237-231800-  
BLOCK ISLAND SOUND-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
 
 
   
REST OF TONIGHT
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.  
SEAS 4 TO 5 FT.    
FRI
 
W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
SAT
 
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS 2 TO 3 FT.    
SAT NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
BECOMING S 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. SHOWERS.   
SUN
 
SE WINDS 15 TO 20 KT, BECOMING NE IN THE AFTERNOON. GUSTS  
UP TO 25 KT. SEAS 2 TO 4 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
3 TO 5 FT. A CHANCE OF SHOWERS.    
MON
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT.    
MON NIGHT THROUGH TUE 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.  
 

 
 
ANZ230-231800-  
BOSTON HARBOR-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.  
WAVES AROUND 2 FT.    
FRI
 
W WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. WAVES AROUND  
2 FT.    
FRI NIGHT
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
DIMINISHING TO 10 TO 15 KT AFTER MIDNIGHT. WAVES AROUND 2 FT.    
SAT
 
W WINDS AROUND 10 KT. WAVES 1 FOOT OR LESS.    
SAT NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE  
OF SHOWERS.    
SUN AND SUN NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
WAVES AROUND 2 FT. SHOWERS.   
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO  
30 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.  
 

 
 
ANZ236-231800-  
NARRAGANSETT BAY-  
116 AM EDT FRI APR 23 2021  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
 
 
   
REST OF TONIGHT
 
W WINDS AROUND 15 KT WITH GUSTS UP TO 30 KT.  
WAVES AROUND 3 FT.    
FRI
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 2 TO  
4 FT.    
FRI NIGHT
 
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.    
SAT
 
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP  
TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.    
SAT NIGHT
 
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE  
EVENING. WAVES AROUND 2 FT. SHOWERS LIKELY.    
SUN
 
SE WINDS 10 TO 15 KT, BECOMING NE IN THE AFTERNOON. GUSTS  
UP TO 20 KT. WAVES 2 TO 3 FT. SHOWERS.   
SUN NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES  
2 TO 3 FT. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO  
25 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.  
 

 
 
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