764  
FZUS51 KBOX 181405  
CWFBOX  
 
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
1004 AM EDT SAT JUL 18 2026  
 
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT  
TO 60 NM  
 
ANZ200-190300-  
1004 AM EDT SAT JUL 18 2026  
   
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
 
 
LOW PRES MOVING THROUGH QUEBEC WILL BRING GUSTY SOUTHWEST WINDS TO  
NEAR GALE FORE TODAY, TO GO ALONG WITH SHOWERS AND THUNDERSTORMS.  
HIGH PRES THEN BUILDS IN FOR SUN INTO TUE.  
 

 
 
ANZ250-190300-  
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK  
NATIONAL MARINE SANCTUARY-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS AROUND  
2 FT, BUILDING TO 3 TO 5 FT. WAVE DETAIL: S 2 FT AT 3 SECONDS AND  
NW 1 FOOT AT 3 SECONDS, BECOMING S 5 FT AT 5 SECONDS AND W 2 FT  
AT 4 SECONDS. AREAS OF SMOKE. A CHANCE OF SHOWERS WITH ISOLATED  
TSTMS.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND E 1 FOOT AT  
14 SECONDS. SHOWERS LIKELY IN THE EVENING, THEN A CHANCE OF  
SHOWERS AND TSTMS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING.    
SUN
 
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE  
4 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
NW 2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.    
MON AND MON NIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND NW 1 FOOT  
AT 3 SECONDS.    
TUE
 
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 SE 1 FOOT AT  
8 SECONDS. A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
3 TO 4 FT. SHOWERS.   
WED
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
4 TO 6 FT. A CHANCE OF SHOWERS AND TSTMS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ251-190300-  
MASSACHUSETTS BAY AND IPSWICH BAY-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,  
INCREASING TO 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 3 FT.  
WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 1 FOOT AT 2 SECONDS. AREAS  
OF SMOKE, THEN SMOKE. A CHANCE OF SHOWERS WITH ISOLATED TSTMS  
WITH VSBY 1 TO 3 NM.   
TONIGHT
 
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT  
AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. SMOKE IN THE EVENING.  
SHOWERS LIKELY IN THE EVENING.    
SUN
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND S 2 FT AT 4 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
W 2 FT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.    
MON AND MON NIGHT
 
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 2 FT AT 3 SECONDS AND N 1 FOOT AT 4 SECONDS.    
TUE
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: S 3 FT AT 3 SECONDS AND SE 1 FOOT AT  
8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT AND WED
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS  
2 TO 3 FT. A CHANCE OF SHOWERS AND TSTMS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ231-190300-  
CAPE COD BAY-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS AROUND 10 KT WITH GUSTS UP TO 20 KT,  
INCREASING TO 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 4 FT.  
WAVE DETAIL: W 2 FT AT 3 SECONDS AND NE 1 FOOT AT 5 SECONDS.  
AREAS OF SMOKE. A CHANCE OF SHOWERS AND TSTMS WITH VSBY 1 TO  
3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT  
11 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS. AREAS OF SMOKE  
IN THE EVENING WITH VSBY 1 TO 3 NM.    
SUN
 
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 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 9 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE  
DETAIL: NW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 8 SECONDS.    
MON
 
NW WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS  
1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS AND S 1 FOOT  
AT 7 SECONDS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,  
THEN 1 FOOT OR LESS. WAVE DETAIL: S 1 FOOT AT 2 SECONDS AND N  
1 FOOT AT 5 SECONDS, BECOMING S 1 FOOT AT 2 SECONDS AND NW 1 FOOT  
AT 3 SECONDS.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
2 TO 4 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
2 TO 4 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ254-190300-  
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA  
OUT 20 NM-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT.  
GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT  
4 SECONDS AND NW 1 FOOT AT 3 SECONDS. PATCHY SMOKE. A CHANCE OF  
SHOWERS AND TSTMS WITH VSBY 1 TO 3 NM.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND E 1 FOOT AT  
8 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY IN THE EVENING, THEN  
A CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING  
WITH VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, BECOMING NW  
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 3 TO  
5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.    
SUN NIGHT
 
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS  
2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND NW 1 FOOT AT  
4 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: S 3 FT AT 8 SECONDS AND NW 1 FOOT AT 4 SECONDS.    
TUE
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND W 1 FOOT AT 3 SECONDS.  
A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
5 TO 7 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO  
9 FT, EXCEPT 9 TO 13 FT S AND E OF NANTUCKET. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
6 TO 9 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ255-190300-  
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD  
AND NANTUCKET-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
 
 
   
THIS AFTERNOON
 
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 NW 1 FOOT AT  
5 SECONDS. PATCHY SMOKE. A CHANCE OF SHOWERS AND TSTMS WITH VSBY  
1 TO 3 NM.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT, BUILDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT  
AT 5 SECONDS AND NW 1 FOOT AT 6 SECONDS, BECOMING SW 6 FT AT  
6 SECONDS AND NW 2 FT AT 6 SECONDS. A CHANCE OF TSTMS. SHOWERS IN  
THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF  
SMOKE IN THE EVENING WITH VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, DIMINISHING TO  
10 TO 15 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: W 6 FT  
AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS.    
SUN NIGHT
 
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.  
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND NW 1 FOOT  
AT 3 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 4 FT AT 8 SECONDS AND NW 1 FOOT AT 3 SECONDS.    
TUE
 
SE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT  
AT 7 SECONDS AND NW 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. SHOWERS WITH A  
CHANCE OF TSTMS.    
WED
 
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 9 TO  
12 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
7 TO 10 FT. SHOWERS LIKELY.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ256-190300-  
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT  
TO 20 NM SOUTH OF BLOCK ISLAND-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 3 SECONDS AND SE 1 FOOT  
AT 8 SECONDS. PATCHY SMOKE. SHOWERS WITH A CHANCE OF TSTMS WITH  
VSBY 1 TO 3 NM.   
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: S 6 FT AT 5 SECONDS AND NW 3 FT AT 5 SECONDS.  
A CHANCE OF TSTMS. SHOWERS IN THE EVENING, THEN A CHANCE OF  
SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING. VSBY 1 TO  
3 NM.    
SUN
 
W WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW  
6 FT AT 7 SECONDS AND NW 2 FT AT 4 SECONDS.    
SUN NIGHT
 
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT AFTER  
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E  
2 FT AT 8 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 3 FT AT 8 SECONDS AND E 2 FT AT 9 SECONDS.    
TUE
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND NW 1 FOOT AT  
5 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
5 TO 7 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO  
11 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
7 TO 10 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ232-190300-  
NANTUCKET SOUND-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT.  
GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 9 SECONDS. AREAS OF SMOKE, THEN PATCHY  
SMOKE. SHOWERS WITH A CHANCE OF TSTMS WITH VSBY 1 TO 3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
4 FT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 1 FOOT AT  
8 SECONDS. A CHANCE OF TSTMS. SHOWERS IN THE EVENING, THEN A  
CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING.  
VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT IN THE  
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT  
AT 7 SECONDS AND W 2 FT AT 4 SECONDS.    
SUN NIGHT
 
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS  
2 TO 3 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND S 1 FOOT AT  
7 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: S 2 FT AT 4 SECONDS AND NW 1 FOOT AT 3 SECONDS.    
TUE
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND W 1 FOOT AT 4 SECONDS.  
A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS  
4 TO 6 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO  
6 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS  
4 TO 6 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ233-190300-  
VINEYARD SOUND-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS AROUND 10 KT, INCREASING TO AROUND  
15 KT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT  
3 SECONDS AND SE 1 FOOT AT 8 SECONDS. AREAS OF SMOKE, THEN PATCHY  
SMOKE. SHOWERS WITH A CHANCE OF TSTMS WITH VSBY 1 TO 3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND SE 1 FOOT AT  
14 SECONDS. A CHANCE OF TSTMS. SHOWERS IN THE EVENING, THEN A  
CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING.  
VSBY 1 TO 3 NM.    
SUN
 
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.  
SEAS 2 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 1 FOOT AT  
8 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: W  
3 FT AT 6 SECONDS AND SE 1 FOOT AT 6 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SW 2 FT AT 8 SECONDS AND NW 1 FOOT AT 5 SECONDS.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND SE 1 FOOT AT  
9 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
4 TO 6 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
5 TO 7 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ234-190300-  
BUZZARDS BAY-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT,  
INCREASING TO 30 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT  
4 SECONDS AND SE 1 FOOT AT 7 SECONDS. PATCHY SMOKE. SHOWERS WITH  
A CHANCE OF TSTMS WITH VSBY 1 TO 3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.  
A CHANCE OF TSTMS. SHOWERS LIKELY IN THE EVENING, THEN A CHANCE  
OF SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING. VSBY  
1 TO 3 NM.    
SUN
 
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.  
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND W 1 FOOT AT  
4 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:  
S 2 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE  
DETAIL: SE 2 FT AT 6 SECONDS AND SW 2 FT AT 6 SECONDS.    
TUE
 
S 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 SE 1 FOOT AT  
9 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
3 TO 5 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO  
6 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
3 TO 5 FT. SHOWERS LIKELY.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ235-190300-  
RHODE ISLAND SOUND-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S 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 SE 1 FOOT  
AT 8 SECONDS. PATCHY SMOKE. SHOWERS WITH A CHANCE OF TSTMS WITH  
VSBY 1 TO 3 NM.   
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND S 3 FT AT 8 SECONDS.  
A CHANCE OF TSTMS. SHOWERS IN THE EVENING, THEN A CHANCE OF  
SHOWERS AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING. VSBY 1 TO  
3 NM.    
SUN
 
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.  
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 2 FT AT  
8 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW  
4 FT AT 6 SECONDS AND SE 1 FOOT AT 12 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT 12 SECONDS.    
TUE
 
S WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT  
AT 8 SECONDS AND W 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS AND  
TSTMS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
5 TO 7 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 7 TO  
10 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS  
6 TO 9 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ237-190300-  
BLOCK ISLAND SOUND-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
SEAS AROUND 2 FT, BUILDING TO 3 TO 4 FT. WAVE DETAIL: S 2 FT AT  
5 SECONDS AND W 1 FOOT AT 2 SECONDS, BECOMING SW 3 FT AT  
4 SECONDS AND SE 1 FOOT AT 8 SECONDS. AREAS OF SMOKE. A SLIGHT  
CHANCE OF SHOWERS. SHOWERS WITH A CHANCE OF TSTMS WITH VSBY 1 TO  
3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT  
8 SECONDS. A CHANCE OF TSTMS. SHOWERS IN THE EVENING, THEN A  
CHANCE OF SHOWERS AFTER MIDNIGHT. SMOKE IN THE EVENING WITH VSBY  
1 TO 3 NM.    
SUN
 
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.  
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 2 FT AT  
4 SECONDS.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE  
DETAIL: S 3 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS.    
TUE
 
SE 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  
8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
4 TO 6 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
5 TO 7 FT. A CHANCE OF SHOWERS AND TSTMS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ230-190300-  
BOSTON HARBOR-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS AROUND 10 KT, INCREASING TO 15 TO 20 KT  
WITH GUSTS UP TO 30 KT. WAVES AROUND 2 FT. SMOKE. A CHANCE OF  
SHOWERS WITH ISOLATED TSTMS.    
TONIGHT
 
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. WAVES AROUND 2 FT. SMOKE IN THE  
EVENING. SHOWERS LIKELY IN THE EVENING.    
SUN
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND  
2 FT.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
MON AND MON NIGHT
 
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO  
3 FT. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT THROUGH WED NIGHT
 
SW WINDS 10 TO 15 KT WITH GUSTS UP  
TO 25 KT. WAVES 2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.  
 
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.  
 

 
 
ANZ236-190300-  
NARRAGANSETT BAY-  
1004 AM EDT SAT JUL 18 2026  
   
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING
 
 
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.  
WAVES 2 TO 3 FT. AREAS OF SMOKE. SHOWERS WITH A CHANCE OF TSTMS  
WITH VSBY 1 TO 3 NM.    
TONIGHT
 
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER  
MIDNIGHT. GUSTS UP TO 30 KT. WAVES 2 TO 3 FT. A CHANCE OF TSTMS.  
SHOWERS LIKELY IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT. AREAS OF SMOKE IN THE EVENING WITH VSBY 1 TO 3 NM.    
SUN
 
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.  
WAVES 2 TO 3 FT.    
SUN NIGHT
 
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO  
3 FT. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT THROUGH WED NIGHT
 
SW WINDS 15 TO 20 KT WITH GUSTS UP  
TO 30 KT. WAVES 3 TO 5 FT. SHOWERS WITH A CHANCE OF TSTMS.  
 
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.  
 

 
 
ANZ280-190300-  
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO  
60 NM-  
1004 AM EDT SAT JUL 18 2026  
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
INCREASING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 3 FT,  
BUILDING TO 4 TO 6 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND W  
1 FOOT AT 3 SECONDS, BECOMING S 6 FT AT 5 SECONDS AND W 2 FT AT  
4 SECONDS. AREAS OF SMOKE. A CHANCE OF SHOWERS.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
8 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 2 FT AT 8 SECONDS.  
SHOWERS LIKELY. A CHANCE OF TSTMS AFTER MIDNIGHT. AREAS OF SMOKE  
IN THE EVENING.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO  
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 2 FT AT 6 SECONDS.    
SUN NIGHT
 
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS  
3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 2 FT AT  
4 SECONDS.    
MON AND MON NIGHT
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.  
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND S 3 FT AT  
8 SECONDS.    
TUE
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 1 FOOT AT 3 SECONDS.   
TUE NIGHT
 
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS  
4 TO 6 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO  
9 FT. SHOWERS.   
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
6 TO 9 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ281-190300-  
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-  
1004 AM EDT SAT JUL 18 2026  
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,  
INCREASING TO 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 4 FT.  
WAVE DETAIL: S 4 FT AT 5 SECONDS AND NW 1 FOOT AT 4 SECONDS.  
PATCHY SMOKE. A CHANCE OF SHOWERS.   
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO  
7 FT. WAVE DETAIL: SW 6 FT AT 5 SECONDS AND SE 1 FOOT AT  
8 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS  
LIKELY WITH A CHANCE OF TSTMS AFTER MIDNIGHT. PATCHY SMOKE IN THE  
EVENING WITH VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, BECOMING NW  
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND NW 3 FT AT 4 SECONDS.   
SUN NIGHT
 
W WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SE  
5 FT AT 6 SECONDS AND NW 2 FT AT 4 SECONDS.    
MON
 
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 2 FT AT  
4 SECONDS.    
MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: S  
3 FT AT 8 SECONDS AND NW 1 FOOT AT 4 SECONDS.    
TUE
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS AROUND  
3 FT.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
5 TO 7 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED AND WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.  
SEAS 9 TO 13 FT. SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ282-190300-  
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-  
1004 AM EDT SAT JUL 18 2026  
   
THIS AFTERNOON
 
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS  
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND N 1 FOOT AT  
4 SECONDS. PATCHY SMOKE. A SLIGHT CHANCE OF SHOWERS WITH VSBY  
1 TO 3 NM.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO  
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND NW 1 FOOT AT  
4 SECONDS. A CHANCE OF TSTMS. A CHANCE OF SHOWERS IN THE EVENING,  
THEN SHOWERS LIKELY AFTER MIDNIGHT. AREAS OF SMOKE IN THE EVENING  
WITH VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO  
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 5 TO  
7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND NW 1 FOOT AT  
4 SECONDS.    
SUN NIGHT
 
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS  
4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND N 1 FOOT AT  
5 SECONDS.    
MON
 
N WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS  
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND NW 1 FOOT AT  
4 SECONDS.    
MON NIGHT
 
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S  
3 FT AT 8 SECONDS AND N 1 FOOT AT 5 SECONDS.    
TUE
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO  
3 FT. A CHANCE OF SHOWERS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
6 TO 9 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS AROUND 25 KT WITH GUSTS UP TO 35 KT. SEAS 11 TO  
15 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
9 TO 13 FT. SHOWERS LIKELY.  
 
WINDS AND SEAS 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.  
 

 
 
ANZ283-190300-  
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-  
1004 AM EDT SAT JUL 18 2026  
   
THIS AFTERNOON
 
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 NW 2 FT AT  
4 SECONDS. PATCHY SMOKE. A CHANCE OF SHOWERS AND TSTMS WITH VSBY  
1 TO 3 NM.    
TONIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO  
5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT  
AT 5 SECONDS AND NW 2 FT AT 4 SECONDS, BECOMING SW 7 FT AT  
7 SECONDS AND NW 5 FT AT 5 SECONDS. A CHANCE OF TSTMS. SHOWERS IN  
THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT. AREAS OF  
SMOKE IN THE EVENING. VSBY 1 TO 3 NM.    
SUN
 
W WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, DIMINISHING TO  
10 TO 15 KT WITH GUSTS UP TO 20 KT IN THE AFTERNOON. SEAS 5 TO  
7 FT. WAVE DETAIL: W 7 FT AT 6 SECONDS AND E 1 FOOT AT 8 SECONDS.   
SUN NIGHT
 
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.  
SEAS 4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND NW 1 FOOT  
AT 4 SECONDS.    
MON AND MON NIGHT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE  
DETAIL: S 4 FT AT 8 SECONDS AND N 1 FOOT AT 4 SECONDS.    
TUE
 
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO  
4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND NW 1 FOOT AT  
4 SECONDS. A CHANCE OF SHOWERS AND TSTMS.    
TUE NIGHT
 
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
6 TO 9 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED
 
SW WINDS AROUND 25 KT WITH GUSTS UP TO 35 KT. SEAS 10 TO  
13 FT. SHOWERS WITH A CHANCE OF TSTMS.    
WED NIGHT
 
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS  
8 TO 11 FT. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS 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.  
 

 
 
FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT  
WWW.WEATHER.GOV/BOSTON  
 
YOU CAN FOLLOW US ON FACEBOOK AT  
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV  
 
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