402  
FZUS51 KBOX 200905  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
405 AM EST FRI DEC 20 2024  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-202200-  
405 AM EST FRI DEC 20 2024  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
AN OFFSHORE COASTAL STORM WILL BRING PERIODS OF RAIN AND WET SNOW  
TODAY INTO SATURDAY, IN ADDITION TO BUILDING SEAS, AND STRONG  
NORTHEAST WIND TODAY AND NORTHWEST WIND SATURDAYS. HIGH PRESSURE  
RETURNS SUNDAY WITH VERY COLD TEMPERATURES, WHICH MAY LEAD TO  
LOCALIZED FREEZING SPRAY EARLY MORNING. DRY AND COLD CONDITIONS  
CONTINUES MONDAY AND TUESDAY.  
 

 
 
ANZ250-202200-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N 4 FT  
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS THIS  
AFTERNOON WITH VSBY 1 TO 3 NM.    
TONIGHT
 
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT, BUILDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE 7 FT  
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS, BECOMING NE 7 FT AT  
7 SECONDS AND E 5 FT AT 8 SECONDS. A CHANCE OF SNOW SHOWERS. A  
CHANCE OF SHOWERS IN THE EVENING. VSBY 1 NM OR LESS, INCREASING  
TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT
 
N WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 6 TO 9 FT. WAVE DETAIL: E 7 FT  
AT 8 SECONDS AND N 6 FT AT 7 SECONDS. A CHANCE OF SNOW SHOWERS IN  
THE AFTERNOON.    
SAT NIGHT
 
NW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS  
5 TO 8 FT. WAVE DETAIL: NE 7 FT AT 9 SECONDS AND N 4 FT AT  
6 SECONDS.    
SUN
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 4 FT AT 10 SECONDS.   
SUN NIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 5 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 2 FT AT  
10 SECONDS.    
MON
 
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF  
SNOW.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 10 KT, BECOMING N. SEAS 2 TO  
3 FT. A CHANCE OF RAIN AND SNOW. VSBY 1 TO 3 NM.  
 
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.  
 

 
 
ANZ251-202200-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE  
4 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF  
SNOW SHOWERS THIS MORNING, THEN A CHANCE OF RAIN AND SNOW SHOWERS  
THIS AFTERNOON WITH VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: NE 6 FT AT 5 SECONDS AND E 4 FT AT 9 SECONDS.  
A CHANCE OF SNOW SHOWERS. A CHANCE OF SHOWERS IN THE EVENING.  
VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS.    
SAT NIGHT
 
NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL:  
NE 5 FT AT 9 SECONDS AND N 4 FT AT 5 SECONDS.    
SUN AND SUN NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND N 3 FT AT  
5 SECONDS.    
MON
 
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT  
AT 6 SECONDS AND NW 1 FOOT AT 3 SECONDS.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF  
SNOW.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 10 KT, BECOMING N. SEAS 2 TO  
3 FT. A CHANCE OF SNOW AND RAIN. VSBY 1 TO 3 NM.  
 
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.  
 

 
 
ANZ231-202200-  
CAPE COD BAY-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE  
3 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF  
SHOWERS THIS MORNING, THEN SHOWERS LIKELY THIS AFTERNOON WITH  
VSBY 1 TO 3 NM.    
TONIGHT
 
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: N 6 FT AT 6 SECONDS AND SE 4 FT AT 8 SECONDS.  
RAIN AND SNOW SHOWERS LIKELY, MAINLY IN THE EVENING. VSBY 1 TO  
3 NM.    
SAT
 
N WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: NE  
5 FT AT 7 SECONDS.    
SAT NIGHT
 
NW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS  
4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 9 SECONDS AND N 4 FT AT  
6 SECONDS.    
SUN AND SUN NIGHT
 
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 3 TO 5 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND E 3 FT AT  
9 SECONDS.    
MON
 
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT  
AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.    
MON NIGHT
 
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF  
SNOW.    
TUE
 
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF RAIN  
AND SNOW.    
TUE NIGHT
 
NW WINDS 5 TO 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.  
 

 
 
ANZ254-202200-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT  
AT 5 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS THIS  
AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT, BUILDING TO 7 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: NE 6 FT  
AT 6 SECONDS AND SE 3 FT AT 8 SECONDS, BECOMING NE 7 FT AT  
7 SECONDS AND SE 6 FT AT 8 SECONDS. SHOWERS LIKELY. A CHANCE OF  
SNOW SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS, INCREASING TO  
1 TO 3 NM AFTER MIDNIGHT.    
SAT
 
N WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 7 TO 10 FT. WAVE DETAIL: NE  
8 FT AT 7 SECONDS. A CHANCE OF SNOW AND RAIN SHOWERS. VSBY 1 TO  
3 NM IN THE MORNING.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
6 TO 8 FT. WAVE DETAIL: NE 7 FT AT 9 SECONDS AND N 4 FT AT  
6 SECONDS. A CHANCE OF SNOW SHOWERS IN THE EVENING. VSBY 1 NM OR  
LESS.    
SUN
 
NW WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. WAVE DETAIL: E 5 FT  
AT 9 SECONDS AND N 4 FT AT 7 SECONDS.    
SUN NIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND SE 3 FT AT  
9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO  
4 FT.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 10 KT, BECOMING NW. SEAS  
2 TO 3 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.  
 

 
 
ANZ255-202200-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 20 TO 25 KT THIS  
AFTERNOON. SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT THIS AFTERNOON.  
WAVE DETAIL: E 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS,  
BECOMING E 5 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS. A SLIGHT  
CHANCE OF SHOWERS THIS MORNING, THEN SHOWERS LIKELY THIS  
AFTERNOON WITH VSBY 1 NM OR LESS.    
TONIGHT
 
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT. WAVE DETAIL: N 6 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.  
SHOWERS LIKELY, MAINLY IN THE EVENING. VSBY 1 NM OR LESS,  
INCREASING TO 1 TO 3 NM AFTER MIDNIGHT.    
SAT
 
N WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: NE  
5 FT AT 7 SECONDS. A CHANCE OF SNOW AND RAIN SHOWERS IN THE  
AFTERNOON.    
SAT NIGHT
 
NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: N  
5 FT AT 5 SECONDS AND E 5 FT AT 9 SECONDS.    
SUN
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: N 5 FT AT 6 SECONDS AND E 4 FT AT 9 SECONDS.    
SUN NIGHT
 
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS  
AND SE 2 FT AT 9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO  
4 FT.    
TUE AND TUE NIGHT
 
SW WINDS 10 TO 15 KT, BECOMING NW. SEAS 2 TO  
3 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.  
 

 
 
ANZ256-202200-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 20 TO 25 KT THIS  
AFTERNOON. SEAS 3 TO 4 FT, BUILDING TO 4 TO 6 FT THIS AFTERNOON.  
WAVE DETAIL: E 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS,  
BECOMING E 5 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE  
OF SHOWERS. VSBY 1 TO 3 NM THIS AFTERNOON.    
TONIGHT
 
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: N 6 FT AT 6 SECONDS AND SE 3 FT AT 8 SECONDS.  
A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT, SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: N  
5 FT AT 5 SECONDS AND SE 4 FT AT 8 SECONDS, BECOMING N 4 FT AT  
5 SECONDS AND E 4 FT AT 8 SECONDS. A CHANCE OF SNOW SHOWERS IN  
THE AFTERNOON.    
SAT NIGHT
 
NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: N  
5 FT AT 5 SECONDS AND E 4 FT AT 9 SECONDS.    
SUN
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: N 5 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.    
SUN NIGHT
 
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 4 SECONDS  
AND SE 2 FT AT 9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO  
3 FT.    
TUE AND TUE NIGHT
 
SW WINDS 10 TO 15 KT, BECOMING NW. SEAS 2 TO  
3 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.  
 

 
 
ANZ232-202200-  
NANTUCKET SOUND-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY EVENING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 4 SECONDS AND W 1 FOOT AT 6 SECONDS. A SLIGHT CHANCE OF  
SHOWERS THIS MORNING, THEN SHOWERS LIKELY THIS AFTERNOON WITH  
VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.  
SHOWERS LIKELY IN THE EVENING, THEN A CHANCE OF RAIN AND SNOW  
SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS, INCREASING TO 1 TO  
3 NM AFTER MIDNIGHT.    
SAT
 
N WINDS 20 TO 25 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND E  
3 FT AT 8 SECONDS.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
3 TO 4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND E 2 FT AT  
9 SECONDS. A CHANCE OF LIGHT FREEZING SPRAY AFTER MIDNIGHT.    
SUN
 
NW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT  
AT 4 SECONDS AND N 3 FT AT 7 SECONDS. A CHANCE OF LIGHT FREEZING  
SPRAY IN THE MORNING.    
SUN NIGHT
 
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND N  
2 FT AT 6 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS  
AROUND 2 FT.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 10 KT, BECOMING NW. 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.  
 

 
 
ANZ233-202200-  
VINEYARD SOUND-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY MORNING...  
   
TODAY
 
E WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE  
2 FT AT 3 SECONDS AND S 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF  
SHOWERS THIS MORNING, THEN SHOWERS LIKELY THIS AFTERNOON WITH  
VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N  
3 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS.  
A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND SE 1 FOOT AT  
9 SECONDS.    
SUN AND SUN NIGHT
 
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: N 2 FT AT 5 SECONDS AND SE 1 FOOT AT 9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS  
1 FOOT OR LESS, THEN AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT  
3 SECONDS AND SE 1 FOOT AT 8 SECONDS, BECOMING SW 1 FOOT AT  
3 SECONDS AND NE 1 FOOT AT 4 SECONDS.    
TUE AND TUE NIGHT
 
SW WINDS AROUND 10 KT, BECOMING NW. 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.  
 

 
 
ANZ234-202200-  
BUZZARDS BAY-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY MORNING...  
   
TODAY
 
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE  
2 FT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS. A SLIGHT CHANCE OF  
SHOWERS THIS MORNING, THEN A CHANCE OF SHOWERS THIS AFTERNOON  
WITH VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.  
A CHANCE OF RAIN AND SNOW SHOWERS. VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND E 2 FT AT 8 SECONDS.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL:  
NW 2 FT AT 3 SECONDS AND N 2 FT AT 6 SECONDS. A CHANCE OF LIGHT  
FREEZING SPRAY.    
SUN AND SUN NIGHT
 
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: NW 2 FT AT 3 SECONDS AND N 2 FT AT 6 SECONDS.    
MON AND MON NIGHT
 
W WINDS 5 TO 10 KT, BECOMING SW. SEAS 1 FOOT  
OR LESS, THEN AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND  
SE 1 FOOT AT 8 SECONDS, BECOMING SW 1 FOOT AT 3 SECONDS AND NE  
1 FOOT AT 4 SECONDS.    
TUE
 
SW WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF RAIN  
AND SNOW.    
TUE NIGHT
 
NW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. 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.  
 

 
 
ANZ235-202200-  
RHODE ISLAND SOUND-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY MORNING...  
   
TODAY
 
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE  
4 FT AT 6 SECONDS AND E 1 FOOT AT 13 SECONDS. A CHANCE OF  
SHOWERS. VSBY 1 TO 3 NM THIS AFTERNOON.    
TONIGHT
 
N WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: N  
4 FT AT 5 SECONDS AND SE 4 FT AT 8 SECONDS. A CHANCE OF SHOWERS.  
VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
3 TO 4 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 3 FT AT  
9 SECONDS.    
SUN AND SUN NIGHT
 
N WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: N 3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO  
3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND NE 1 FOOT AT  
3 SECONDS.    
TUE AND TUE NIGHT
 
W WINDS AROUND 10 KT, BECOMING NW. SEAS 2 TO  
3 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.  
 

 
 
ANZ237-202200-  
BLOCK ISLAND SOUND-  
405 AM EST FRI DEC 20 2024  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EST THIS AFTERNOON  
THROUGH SATURDAY MORNING...  
   
TODAY
 
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT THIS  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT  
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS THIS  
MORNING, THEN SHOWERS LIKELY THIS AFTERNOON WITH VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.  
A CHANCE OF SHOWERS IN THE EVENING. VSBY 1 TO 3 NM.    
SAT
 
N WINDS 10 TO 15 KT, BECOMING NW 15 TO 20 KT IN THE  
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: NW 3 FT AT 3 SECONDS AND  
SE 3 FT AT 8 SECONDS.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS  
3 TO 4 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND SE 3 FT AT  
9 SECONDS.    
SUN AND SUN NIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND SE 3 FT AT  
9 SECONDS.    
MON AND MON NIGHT
 
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS  
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT  
3 SECONDS.    
TUE
 
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF RAIN  
AND SNOW.    
TUE NIGHT
 
NW WINDS 5 TO 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.  
 

 
 
ANZ230-202200-  
BOSTON HARBOR-  
405 AM EST FRI DEC 20 2024  
   
TODAY
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.  
WAVES 2 TO 3 FT. A SLIGHT CHANCE OF SNOW AND RAIN SHOWERS THIS  
MORNING, THEN SHOWERS LIKELY THIS AFTERNOON WITH VSBY 1 TO 3 NM.    
TONIGHT
 
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES 2 TO  
4 FT. A CHANCE OF SNOW SHOWERS. SHOWERS LIKELY IN THE EVENING.  
VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. WAVES AROUND 3 FT, EXCEPT 4 TO 6 FT  
AT THE OUTER HARBOR ENTRANCE.    
SAT NIGHT
 
NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES  
2 TO 3 FT, EXCEPT 3 TO 5 FT AT THE OUTER HARBOR ENTRANCE.    
SUN AND SUN NIGHT
 
NW WINDS 15 TO 20 KT. WAVES AROUND 2 FT.    
MON
 
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
MON NIGHT AND TUE
 
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A  
CHANCE OF SNOW.    
TUE NIGHT
 
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A CHANCE  
OF SNOW.  
 
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.  
 

 
 
ANZ236-202200-  
NARRAGANSETT BAY-  
405 AM EST FRI DEC 20 2024  
   
TODAY
 
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT THIS AFTERNOON.  
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM THIS  
AFTERNOON.    
TONIGHT
 
N WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. WAVES  
2 TO 4 FT. A CHANCE OF SNOW SHOWERS. A CHANCE OF SHOWERS IN THE  
EVENING. VSBY 1 TO 3 NM.    
SAT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO  
3 FT.    
SAT NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES  
2 TO 3 FT.    
SUN AND SUN NIGHT
 
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES 2 TO 3 FT.    
MON AND MON NIGHT
 
W WINDS 5 TO 10 KT, BECOMING SW. WAVES  
AROUND 2 FT.    
TUE AND TUE NIGHT
 
W WINDS 5 TO 10 KT, BECOMING NW. WAVES  
AROUND 2 FT. A CHANCE OF RAIN AND SNOW.  
 
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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