724  
FZUS51 KBOX 171403  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1003 AM EDT WED SEP 17 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-180300-  
1003 AM EDT WED SEP 17 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS  
 
A HIGH PRES TO OUR N SLOWLY MOVES E OF THE REGION THROUGH MID-WEEK  
AS A LOW PRES PASSES WELL TO OUR S. SHOWERS EXPECTED OVER THE SRN  
COASTAL WATERS TONIGHT. A COLD FRONT WILL CROSS THE REGION FRI,  
FOLLOWED BY A LARGE HIGH PRES BUILDING IN FROM THE N FOR THIS  
WEEKEND.  
 
 
 
ANZ250-180300-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SE 3 FT AT 8 SECONDS.    
TONIGHT  
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 8 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
THU  
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS  
IN THE MORNING.    
THU NIGHT  
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND SW 2 FT AT  
3 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND W 2 FT AT  
3 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND S  
3 FT AT 4 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.  
 
 
 
ANZ251-180300-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: E 2 FT AT 7 SECONDS.    
TONIGHT  
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS. A CHANCE OF  
SHOWERS.    
THU  
N WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS. A CHANCE OF  
SHOWERS IN THE MORNING.    
THU NIGHT  
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT  
3 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND W 2 FT AT  
3 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND NE  
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.  
 
 
 
ANZ231-180300-  
CAPE COD BAY-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: E 1 FOOT AT 3 SECONDS. A SLIGHT CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 3 SECONDS. A CHANCE OF SHOWERS.    
THU  
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT  
AT 2 SECONDS AND S 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS.    
THU NIGHT  
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
E 2 FT AT 5 SECONDS AND S 1 FOOT AT 3 SECONDS.    
FRI  
NW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. GUSTS  
UP TO 20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS  
AND W 1 FOOT AT 3 SECONDS.    
FRI NIGHT  
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT  
AT 5 SECONDS.    
SAT THROUGH SUN NIGHT  
S 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.  
 
 
 
ANZ254-180300-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SE 3 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
3 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS.   
THU  
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT  
AT 7 SECONDS. A CHANCE OF SHOWERS.    
THU NIGHT  
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 7 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 6 SECONDS AND W 2 FT AT  
3 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.  
WAVE DETAIL: N 4 FT AT 6 SECONDS AND 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.  
 
 
 
ANZ255-180300-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND S 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E  
4 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS.   
THU  
E WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. A CHANCE  
OF SHOWERS. VSBY 1 TO 3 NM.   
THU NIGHT  
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND  
SW 2 FT AT 5 SECONDS.    
FRI AND FRI NIGHT  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND W 2 FT AT  
4 SECONDS.    
SAT THROUGH SUN NIGHT  
SE WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND SE  
2 FT AT 4 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.  
 
 
 
ANZ256-180300-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
1003 AM EDT WED SEP 17 2025  
   
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING  
 
   
THIS AFTERNOON  
E WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. WAVE  
DETAIL: E 5 FT AT 8 SECONDS AND S 1 FOOT AT 7 SECONDS. A SLIGHT  
CHANCE OF SHOWERS, THEN A CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.  
SEAS 3 TO 5 FT. WAVE DETAIL: E 5 FT AT 8 SECONDS AND S 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG AFTER MIDNIGHT.    
THU  
NE WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS. PATCHY FOG IN THE  
MORNING. A CHANCE OF SHOWERS IN THE MORNING.    
THU NIGHT  
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER  
MIDNIGHT. SEAS AROUND 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND  
SW 2 FT AT 5 SECONDS.    
FRI  
W WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE  
3 FT AT 8 SECONDS AND W 2 FT AT 4 SECONDS.    
FRI NIGHT  
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER  
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: NE 4 FT  
AT 5 SECONDS AND W 2 FT AT 5 SECONDS.    
SAT THROUGH SUN NIGHT  
SE WINDS 15 TO 20 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.  
 
 
 
ANZ232-180300-  
NANTUCKET SOUND-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND S 1 FOOT AT  
7 SECONDS. A SLIGHT CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE  
2 FT AT 7 SECONDS. A CHANCE OF SHOWERS.    
THU  
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT  
AT 6 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS.    
THU NIGHT  
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER  
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND  
E 2 FT AT 7 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND W 2 FT AT  
3 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND W  
1 FOOT 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.  
 
 
 
ANZ233-180300-  
VINEYARD SOUND-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND S 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: E  
2 FT AT 4 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS.   
THU  
NE WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 1 FOOT AT 4 SECONDS AND S 1 FOOT AT  
6 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING.    
THU NIGHT  
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: NE 2 FT AT 3 SECONDS AND W 1 FOOT AT 4 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND W  
1 FOOT 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.  
 
 
 
ANZ234-180300-  
BUZZARDS BAY-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS  
AROUND 2 FT. WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND S 1 FOOT AT  
7 SECONDS. A SLIGHT CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: E  
1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF  
SHOWERS.    
THU  
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE  
1 FOOT AT 2 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE OF  
SHOWERS. PATCHY FOG IN THE MORNING.    
THU NIGHT  
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
S 1 FOOT AT 5 SECONDS.    
FRI AND FRI NIGHT  
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND W 1 FOOT AT  
3 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND W  
1 FOOT 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.  
 
 
 
ANZ235-180300-  
RHODE ISLAND SOUND-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND S 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.  
SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND S 1 FOOT AT  
7 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG AFTER MIDNIGHT.    
THU  
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT  
AT 7 SECONDS AND S 1 FOOT AT 6 SECONDS. PATCHY FOG IN THE  
MORNING. A CHANCE OF SHOWERS IN THE MORNING.    
THU NIGHT  
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE  
3 FT AT 7 SECONDS AND SW 2 FT AT 5 SECONDS.    
FRI  
NW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT  
AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.    
FRI NIGHT  
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS AND  
SW 2 FT AT 6 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 15 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.  
 
 
 
ANZ237-180300-  
BLOCK ISLAND SOUND-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS. A CHANCE OF  
SHOWERS.    
TONIGHT  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.  
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS. A CHANCE OF  
SHOWERS. PATCHY FOG AFTER MIDNIGHT.    
THU  
NE WINDS AROUND 10 KT, BECOMING E IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND S 1 FOOT AT  
6 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE  
MORNING.    
THU NIGHT  
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 6 SECONDS.    
FRI  
NW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT  
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.    
FRI NIGHT  
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND W  
2 FT AT 5 SECONDS.    
SAT THROUGH SUN NIGHT  
S WINDS 15 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.  
 
 
 
ANZ230-180300-  
BOSTON HARBOR-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.   
TONIGHT  
SE WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. WAVES  
1 FOOT OR LESS. A CHANCE OF SHOWERS. PATCHY FOG AFTER MIDNIGHT.    
THU  
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. WAVES  
1 FOOT OR LESS. A CHANCE OF SHOWERS IN THE MORNING.    
THU NIGHT  
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES  
1 FOOT OR LESS.    
FRI AND FRI NIGHT  
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES AROUND 2 FT.    
SAT THROUGH SUN NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS UP 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.  
 
 
 
ANZ236-180300-  
NARRAGANSETT BAY-  
1003 AM EDT WED SEP 17 2025  
   
THIS AFTERNOON  
E WINDS 10 TO 15 KT. WAVES AROUND 2 FT. A  
SLIGHT CHANCE OF SHOWERS.    
TONIGHT  
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF  
SHOWERS. PATCHY FOG AFTER MIDNIGHT.    
THU  
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG IN THE  
MORNING. A CHANCE OF SHOWERS IN THE MORNING.    
THU NIGHT  
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
FRI AND FRI NIGHT  
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES AROUND 2 FT.    
SAT THROUGH SUN NIGHT  
S 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.  
 
 
 
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