237
FZUS51 KBOX 052004
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
404 PM EDT TUE MAY 5 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-060900-
404 PM EDT TUE MAY 5 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
NEARSHORE GALE FORCE SOUTHWEST WIND GUSTS WILL PERSIST INTO THIS
EVENING AHEAD OF A SLOW MOVING COLD FRONT. THIS COLD FRONT WILL
REMAIN WEST OF OUR REGION WED...UNTIL LOW PRES CROSSES OUR REGION
WED NIGHT. THIS DRAGS A COLD FRONT ACROSS OUR REGION BY EARLY THU AS
A SECONDARY WAVE OF LOW PRES TRACKS WELL TO OUR SOUTH. HIGH PRES
BUILDS OVER THE MID ATLC COAST FRIDAY. THIS WILL BE FOLLOWED
BY ANOTHER LOW PRES SYSTEM MOVING INTO THE REGION SAT-SAT NIGHT.
ANZ250-060900-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
404 PM EDT TUE MAY 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW AFTER MIDNIGHT.
GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT
6 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND W 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 10 SECONDS AND W 2 FT AT 3 SECONDS.
SAT AND SAT NIGHT
S 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 E 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ251-060900-
MASSACHUSETTS BAY AND IPSWICH BAY-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 4 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND W 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS AND W 1 FOOT AT 2 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND W 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ231-060900-
CAPE COD BAY-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT
3 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 4 SECONDS AND E 1 FOOT
AT 10 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT.
SUN NIGHT
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
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.
ANZ254-060900-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
404 PM EDT TUE MAY 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS. SHOWERS LIKELY.
THU
W WINDS 10 TO 15 KT, BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND W
1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND SE
3 FT AT 10 SECONDS.
SAT AND SAT NIGHT
S 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 E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 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.
ANZ255-060900-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
404 PM EDT TUE MAY 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SW 8 FT AT 6 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 8 SECONDS AND W 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
SW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL:
SW 7 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS.
THU
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND
E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 3 FT AT 4 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT.
SEAS 3 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.
ANZ256-060900-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
404 PM EDT TUE MAY 5 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO
9 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS AND SW 4 FT AT 5 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W 1 FOOT AT 7 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS. SHOWERS.
THU
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS AND W 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS AROUND 4 FT. WAVE DETAIL:
S 4 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND W 3 FT AT 4 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ232-060900-
NANTUCKET SOUND-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND SW 3 FT AT 4 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E
1 FOOT AT 10 SECONDS. SHOWERS.
THU
W WINDS 10 TO 15 KT, BECOMING SW 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND S
2 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW 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
1 FOOT AT 7 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND S 2 FT AT
6 SECONDS. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ233-060900-
VINEYARD SOUND-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
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 SE 2 FT AT 9 SECONDS.
WED
S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
5 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS
IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND
SE 1 FOOT AT 13 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND W 2 FT AT
4 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SW 2 FT AT
7 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ234-060900-
BUZZARDS BAY-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND SW 4 FT AT 5 SECONDS.
WED
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SW 3 FT AT 4 SECONDS.
SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND
SW 3 FT AT 4 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
SW 2 FT AT 7 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SW 2 FT
AT 7 SECONDS. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
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.
ANZ235-060900-
RHODE ISLAND SOUND-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. WAVE DETAIL: SW 8 FT AT 7 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND
SE 2 FT AT 11 SECONDS. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 3 FT AT
4 SECONDS.
SAT AND SAT NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 10 TO
15 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
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.
ANZ237-060900-
BLOCK ISLAND SOUND-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO
8 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W 3 FT AT 5 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS. A
CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT
AT 6 SECONDS AND SE 1 FOOT AT 9 SECONDS. SHOWERS, MAINLY IN THE
EVENING.
THU
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 1 FOOT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS AROUND 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 4 FT AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 2 FT AT
3 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. A CHANCE OF SHOWERS.
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.
ANZ230-060900-
BOSTON HARBOR-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. WAVES AROUND 2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES AROUND
2 FT. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
W 10 TO 15 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. SHOWERS.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. WAVES
1 FOOT OR LESS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT AND FRI
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS.
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.
ANZ236-060900-
NARRAGANSETT BAY-
404 PM EDT TUE MAY 5 2026
..GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES
3 TO 5 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO
4 FT. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT. SHOWERS, MAINLY IN
THE EVENING.
THU
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 TO
3 FT.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A CHANCE OF
SHOWERS.
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.
ANZ280-060900-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
404 PM EDT TUE MAY 5 2026
TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 40 KT. SEAS 7 TO
9 FT. WAVE DETAIL: SW 8 FT AT 7 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S 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 E 1 FOOT AT
10 SECONDS. SHOWERS.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW 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 SE
3 FT AT 9 SECONDS.
SAT AND SAT NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT.
SUN NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS.
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.
ANZ281-060900-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
404 PM EDT TUE MAY 5 2026
TONIGHT
S WINDS 20 TO 25 KT. GUSTS UP TO 40 KT, DECREASING TO
30 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT. WAVE DETAIL: SW 8 FT AT
6 SECONDS AND E 1 FOOT AT 10 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. SHOWERS. A CHANCE OF TSTMS AFTER MIDNIGHT.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS LIKELY, MAINLY
IN THE MORNING.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE
3 FT AT 9 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT.
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.
ANZ282-060900-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
404 PM EDT TUE MAY 5 2026
TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SW 8 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED NIGHT
S WINDS 20 TO 25 KT. SEAS 6 TO 8 FT. WAVE DETAIL: SW
8 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. SHOWERS LIKELY. A
CHANCE OF TSTMS AFTER MIDNIGHT.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
THU NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND NW
2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 3 FT AT
9 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
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.
ANZ283-060900-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
404 PM EDT TUE MAY 5 2026
TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO
9 FT. WAVE DETAIL: SW 9 FT AT 7 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SW 8 FT AT 8 SECONDS AND W 1 FOOT AT
8 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 8 FT. WAVE DETAIL: S 8 FT AT 7 SECONDS AND W 1 FOOT AT
8 SECONDS. SHOWERS LIKELY.
THU
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 7 FT, SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE
DETAIL: SW 6 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS, BECOMING
SW 5 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. A CHANCE OF
SHOWERS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND NW
3 FT AT 4 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT. A CHANCE OF SHOWERS.
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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