971  
FZUS51 KBOX 142304  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
703 PM EDT THU AUG 14 2025  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 25 NM  
 
ANZ200-151200-  
703 PM EDT THU AUG 14 2025  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS  
 
SCATTERED SHOWERS POSSIBLE ON THURSDAY. A COLD FRONT WILL CROSS THE  
WATERS THU NIGHT INTO FRI. HIGH PRESSURE RETURN FRIDAY INTO THE  
WEEKEND.  
 
 
 
ANZ250-151200-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
E WINDS AROUND 5 KT, BECOMING N 10 TO 15 KT WITH GUSTS  
UP TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT  
AT 6 SECONDS AND E 1 FOOT AT 16 SECONDS. PATCHY FOG AFTER  
MIDNIGHT WITH VSBY 1 NM OR LESS.    
FRI  
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE  
4 FT AT 5 SECONDS AND E 1 FOOT AT 16 SECONDS.    
FRI NIGHT  
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE  
3 FT AT 6 SECONDS AND E 1 FOOT AT 15 SECONDS.    
SAT  
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT NIGHT AND SUN  
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND SE 1 FOOT AT  
15 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 30 KT. SEAS AROUND 3 FT. WAVE DETAIL: N 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS.    
MON THROUGH TUE  
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.  
SEAS 3 TO 5 FT.    
TUE NIGHT  
SE WINDS AROUND 10 KT WITH GUSTS UP TO 20 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.  
 
 
 
ANZ251-151200-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
E WINDS AROUND 5 KT, BECOMING N 10 TO 15 KT WITH GUSTS  
UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT  
AT 7 SECONDS AND E 1 FOOT AT 15 SECONDS. A SLIGHT CHANCE OF  
SHOWERS THIS EVENING.    
FRI  
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND E 1 FOOT AT  
16 SECONDS.    
FRI NIGHT  
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT  
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 6 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT NIGHT AND SUN  
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SUN NIGHT  
W WINDS AROUND 15 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 12 SECONDS. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT  
S 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.  
 
 
 
ANZ231-151200-  
CAPE COD BAY-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
S WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: SE  
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 16 SECONDS, BECOMING SE  
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 16 SECONDS. PATCHY FOG AFTER  
MIDNIGHT WITH VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND E 1 FOOT AT  
16 SECONDS.    
FRI NIGHT  
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
NE 2 FT AT 5 SECONDS AND E 1 FOOT AT 15 SECONDS.    
SAT  
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 5 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT NIGHT  
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
SE 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 15 SECONDS.    
SUN  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW  
2 FT AT 3 SECONDS AND SE 1 FOOT AT 13 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.    
MON AND MON NIGHT  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,  
BECOMING E 5 TO 10 KT. SEAS 2 TO 4 FT.    
TUE AND TUE NIGHT  
E WINDS 5 TO 10 KT, BECOMING SE. 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.  
 
 
 
ANZ254-151200-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
S WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 1 FOOT AT  
16 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND SE 1 FOOT AT  
16 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.    
FRI NIGHT  
NE WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE  
3 FT AT 6 SECONDS AND E 1 FOOT AT 15 SECONDS.    
SAT  
NE WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT NIGHT AND SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT  
14 SECONDS.    
SUN NIGHT  
SW WINDS AROUND 15 KT, BECOMING NW AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW 3 FT AT  
5 SECONDS AND SE 1 FOOT AT 11 SECONDS. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT  
SE WINDS 15 TO 20 KT WITH GUSTS UP TO  
25 KT. SEAS 3 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.  
 
 
 
ANZ255-151200-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SE 1 FOOT AT  
16 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT  
AT 6 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.    
FRI NIGHT  
NE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 6 SECONDS.  
PATCHY FOG AFTER MIDNIGHT.    
SAT  
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT  
AT 6 SECONDS.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT 15 SECONDS.    
SUN NIGHT  
SW WINDS AROUND 15 KT, BECOMING NW 20 TO 25 KT AFTER  
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: W 4 FT AT 5 SECONDS AND SE  
1 FOOT AT 14 SECONDS. A CHANCE OF SHOWERS.    
MON  
NE WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.   
MON NIGHT THROUGH TUE NIGHT  
E WINDS 10 TO 15 KT WITH GUSTS UP  
TO 20 KT. SEAS 3 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.  
 
 
 
ANZ256-151200-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS. PATCHY FOG. VSBY  
1 NM OR LESS.    
FRI  
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 6 SECONDS. PATCHY FOG IN  
THE MORNING WITH VSBY 1 TO 3 NM.    
FRI NIGHT  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE  
EVENING. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS. PATCHY  
FOG AFTER MIDNIGHT.    
SAT  
E WINDS AROUND 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT 11 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING NW AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT  
5 SECONDS AND SE 1 FOOT AT 14 SECONDS. A CHANCE OF SHOWERS.    
MON  
NE WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.   
MON NIGHT AND TUE  
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO  
15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT  
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
4 TO 6 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.  
 
 
 
ANZ232-151200-  
NANTUCKET SOUND-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT  
16 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SE 1 FOOT  
AT 16 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.    
FRI NIGHT  
NE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT AFTER  
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND  
E 1 FOOT AT 15 SECONDS. PATCHY FOG AFTER MIDNIGHT.    
SAT  
NE WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 1 FOOT AT 5 SECONDS AND E 1 FOOT AT  
15 SECONDS.    
SAT NIGHT AND SUN  
SW 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 SE 1 FOOT  
AT 15 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING NW AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 13 SECONDS. A CHANCE OF SHOWERS.    
MON  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. A CHANCE OF SHOWERS.    
MON NIGHT THROUGH TUE NIGHT  
SE 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.  
 
 
 
ANZ233-151200-  
VINEYARD SOUND-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 5 SECONDS. PATCHY FOG.  
VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.  
SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS. PATCHY FOG  
IN THE MORNING WITH VSBY 1 TO 3 NM.    
FRI NIGHT  
NE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT AFTER  
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 4 SECONDS.  
PATCHY FOG AFTER MIDNIGHT.    
SAT  
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 4 SECONDS.    
SAT NIGHT  
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S  
1 FOOT AT 4 SECONDS.    
SUN  
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW  
3 FT AT 4 SECONDS AND SE 1 FOOT AT 14 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING NW AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.    
MON  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT.    
MON NIGHT THROUGH TUE NIGHT  
SE 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.  
 
 
 
ANZ234-151200-  
BUZZARDS BAY-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: SW  
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 15 SECONDS, BECOMING SW  
1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 16 SECONDS. PATCHY FOG. VSBY  
1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND  
2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT  
16 SECONDS.    
FRI NIGHT  
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT  
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT  
3 SECONDS. PATCHY FOG AFTER MIDNIGHT.    
SAT  
NE WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
1 FOOT OR LESS. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND SE 1 FOOT  
AT 15 SECONDS.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT  
AT 15 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 13 SECONDS. A CHANCE OF SHOWERS.    
MON  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT.    
MON NIGHT THROUGH TUE NIGHT  
SE 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.  
 
 
 
ANZ235-151200-  
RHODE ISLAND SOUND-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
SW WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS. PATCHY FOG. A  
SLIGHT CHANCE OF SHOWERS THIS EVENING. VSBY 1 NM OR LESS.    
FRI  
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT  
AT 5 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.    
FRI NIGHT  
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS.  
PATCHY FOG AFTER MIDNIGHT.    
SAT  
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS.    
SAT NIGHT AND SUN  
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS.    
SUN NIGHT  
SW WINDS 15 TO 20 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT  
5 SECONDS AND SE 1 FOOT AT 14 SECONDS. A CHANCE OF SHOWERS.    
MON  
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. A CHANCE OF SHOWERS.    
MON NIGHT AND TUE  
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS  
2 TO 4 FT.    
TUE NIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 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.  
 
 
 
ANZ237-151200-  
BLOCK ISLAND SOUND-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
S WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS  
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS. PATCHY FOG. A  
SLIGHT CHANCE OF SHOWERS THIS EVENING. VSBY 1 TO 3 NM, DECREASING  
TO 1 NM OR LESS AFTER MIDNIGHT.    
FRI  
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT  
AT 6 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.    
FRI NIGHT  
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS.  
PATCHY FOG AFTER MIDNIGHT.    
SAT  
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS  
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS.    
SAT NIGHT AND SUN  
SW 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 SE 1 FOOT  
AT 14 SECONDS.    
SUN NIGHT  
SW WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER  
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND  
SE 1 FOOT AT 14 SECONDS. A CHANCE OF SHOWERS.    
MON THROUGH TUE  
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 4 FT.    
TUE NIGHT  
SE WINDS AROUND 10 KT. SEAS 3 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.  
 
 
 
ANZ230-151200-  
BOSTON HARBOR-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
E WINDS AROUND 5 KT, BECOMING N 10 TO 15 KT AFTER  
MIDNIGHT. WAVES 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT.  
A SLIGHT CHANCE OF SHOWERS AND TSTMS THIS EVENING.    
FRI  
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT.    
FRI NIGHT  
E WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. WAVES  
1 FOOT OR LESS.    
SAT  
NE WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. WAVES  
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.    
SAT NIGHT  
S WINDS AROUND 10 KT. WAVES AROUND 2 FT IN THE  
EVENING, THEN 1 FOOT OR LESS.    
SUN AND SUN NIGHT  
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
WAVES AROUND 2 FT. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT  
S WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. WAVES AROUND 2 FT.  
 
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.  
 
 
 
ANZ236-151200-  
NARRAGANSETT BAY-  
703 PM EDT THU AUG 14 2025  
   
TONIGHT  
S WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. WAVES  
1 FOOT OR LESS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS AND TSTMS  
THIS EVENING. VSBY 1 TO 3 NM.    
FRI  
NE WINDS 10 TO 15 KT. WAVES AROUND 2 FT.    
FRI NIGHT  
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG  
AFTER MIDNIGHT.    
SAT  
E WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. WAVES  
AROUND 2 FT. PATCHY FOG IN THE MORNING.    
SAT NIGHT AND SUN  
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
WAVES 2 TO 3 FT.    
SUN NIGHT  
SW WINDS 10 TO 15 KT, BECOMING N AFTER MIDNIGHT.  
GUSTS UP TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.    
MON THROUGH TUE NIGHT  
SE WINDS 10 TO 15 KT WITH GUSTS UP TO  
20 KT. WAVES 2 TO 3 FT.  
 
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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WWW.WEATHER.GOV/BOSTON  
 
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WWW.FACEBOOK.COM/NWSBOSTON  
 
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@NWSBOSTON  
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