890
FZUS51 KBOX 191405
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1005 AM EDT TUE MAY 19 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-200300-
1005 AM EDT TUE MAY 19 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
GUSTY SW WINDS WILL DEVELOP TUE. A STRONG COLD FRONT WILL CROSS THE
WATERS LATE WED AND WED EVENING. STRONG HIGH PRES BUILDS OVER THE GT
LAKES THU AND MOVES INTO THE WATERS FRI. THE HIGH MOVES OFFSHORE BY
SAT AS A FRONTAL BOUNDARY APPROACHES FROM THE S.
ANZ250-200300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING S 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 4 FT.
WAVE DETAIL: SW 4 FT AT 4 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 2 FT AT 9 SECONDS.
A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT
4 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E
5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT
AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND N 2 FT AT
5 SECONDS.
FRI AND FRI NIGHT
NE WINDS 5 TO 10 KT, BECOMING S. SEAS AROUND
2 FT.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SHOWERS LIKELY.
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.
ANZ251-200300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND W 1 FOOT AT
3 SECONDS.
TONIGHT
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 E 1 FOOT AT
9 SECONDS.
WED
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 SE 1 FOOT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. WAVE DETAIL: NW 2 FT AT 3 SECONDS AND S 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E
5 TO 10 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: W
2 FT AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS AND S 1 FOOT AT
3 SECONDS.
FRI AND FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS 1 FOOT
OR LESS, THEN AROUND 2 FT.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SHOWERS LIKELY.
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.
ANZ231-200300-
CAPE COD BAY-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO
20 KT. GUSTS UP TO 25 KT. SEAS AROUND 2 FT, BUILDING TO 3 TO
4 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
4 SECONDS, BECOMING SW 2 FT AT 3 SECONDS AND E 1 FOOT AT
4 SECONDS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 TO 3 NM.
WED
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE 1 FOOT AT
10 SECONDS. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT, BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND N 2 FT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NE
5 TO 10 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
THU NIGHT
S WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 1 FOOT
AT 6 SECONDS.
FRI AND FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING S. SEAS 1 FOOT
OR LESS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SHOWERS LIKELY.
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.
ANZ254-200300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1005 AM EDT TUE MAY 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
THIS AFTERNOON
SW WINDS 15 TO 20 KT. GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR
LESS.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND N 2 FT AT
4 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
S WINDS AROUND 5 KT, BECOMING W AROUND 5 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 6 SECONDS AND S
2 FT AT 6 SECONDS.
FRI
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT.
FRI NIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
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.
ANZ255-200300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1005 AM EDT TUE MAY 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: W 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 7 FT AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: W
6 FT AT 6 SECONDS AND N 2 FT AT 2 SECONDS. SHOWERS LIKELY. PATCHY
FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
THU
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND N 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
THU NIGHT
SE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND N 1 FOOT AT
3 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. SHOWERS LIKELY.
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.
ANZ256-200300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1005 AM EDT TUE MAY 19 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 7 FT AT 7 SECONDS AND E 2 FT AT 10 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR
LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
6 FT AT 7 SECONDS AND N 2 FT AT 3 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND
N 2 FT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
SE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND NE 1 FOOT AT
3 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY.
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.
ANZ232-200300-
NANTUCKET SOUND-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
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 E 1 FOOT AT
4 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW 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 SE 1 FOOT AT
9 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON. VSBY 1 NM OR LESS IN THE MORNING.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 10 TO 15 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND N 2 FT AT 2 SECONDS. A CHANCE OF SHOWERS.
THU
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND SW 1 FOOT AT 6 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT
S WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND NW 1 FOOT AT
5 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. SHOWERS LIKELY.
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.
ANZ233-200300-
VINEYARD SOUND-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
3 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
AFTERNOON. VSBY 1 NM OR LESS IN THE MORNING.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT
7 SECONDS AND NW 2 FT AT 3 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND
N 1 FOOT AT 3 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND S 2 FT AT
7 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
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.
ANZ234-200300-
BUZZARDS BAY-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND W 1 FOOT AT
2 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS AND SE 1 FOOT AT
15 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND S 2 FT AT 8 SECONDS.
PATCHY FOG IN THE MORNING. SHOWERS LIKELY IN THE AFTERNOON. VSBY
1 NM OR LESS IN THE MORNING.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
7 SECONDS AND N 2 FT AT 2 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND
N 1 FOOT AT 3 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND E 1 FOOT AT
2 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. SHOWERS LIKELY.
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.
ANZ235-200300-
RHODE ISLAND SOUND-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND E 1 FOOT AT
3 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SE 6 FT AT 7 SECONDS AND W 3 FT AT 4 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 3 FT AT 7 SECONDS.
PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
VSBY 1 NM OR LESS IN THE MORNING.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND N
2 FT AT 2 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND
SE 2 FT AT 9 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S 2 FT AT
6 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. SHOWERS LIKELY.
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.
ANZ237-200300-
BLOCK ISLAND SOUND-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW 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
6 SECONDS AND E 1 FOOT AT 2 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS
IN THE MORNING.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
THU
N WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND NE 1 FOOT AT
3 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. 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.
ANZ230-200300-
BOSTON HARBOR-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT. A SLIGHT CHANCE OF SHOWERS.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. A CHANCE OF SHOWERS IN THE EVENING.
WED
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. WAVES AROUND 2 FT. SHOWERS LIKELY IN THE EVENING.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. WAVES AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS.
THU NIGHT
S WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
FRI AND FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING S. WAVES 1 FOOT
OR LESS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT, THEN
1 FOOT OR LESS. SHOWERS LIKELY.
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.
ANZ236-200300-
NARRAGANSETT BAY-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
2 TO 3 FT. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY IN
THE AFTERNOON.
WED NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
NW AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY IN THE
EVENING.
THU
N WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT IN THE
AFTERNOON. WAVES AROUND 2 FT.
THU NIGHT
S WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
WAVES AROUND 2 FT.
FRI
E WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SHOWERS LIKELY.
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.
ANZ280-200300-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT. GUSTS UP TO 20 KT,
INCREASING TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT
5 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
SW WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS
IN THE MORNING.
WED NIGHT
W WINDS AROUND 15 KT, BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT
7 SECONDS AND W 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
THU AND THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND SW 2 FT AT
7 SECONDS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO
3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS.
SAT AND SAT NIGHT
E WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT WITH GUSTS UP TO 20 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.
ANZ281-200300-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: W 6 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY
1 NM OR LESS.
WED NIGHT
W WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: W 6 FT
AT 6 SECONDS AND N 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS.
PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND N 3 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
SE WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT AT 6 SECONDS AND S 2 FT AT
6 SECONDS.
FRI
NE WINDS AROUND 5 KT. SEAS 2 TO 3 FT.
FRI NIGHT
S WINDS AROUND 5 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. SHOWERS LIKELY.
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.
ANZ282-200300-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
6 FT. WAVE DETAIL: W 6 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS.
WED NIGHT
SW WINDS 15 TO 20 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: W 6 FT
AT 6 SECONDS AND N 2 FT AT 2 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. PATCHY FOG IN THE
EVENING WITH VSBY 1 NM OR LESS.
THU
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND N 2 FT AT 4 SECONDS.
SHOWERS LIKELY IN THE MORNING.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND SW 2 FT AT
6 SECONDS.
FRI
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT
E WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. SHOWERS LIKELY.
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.
ANZ283-200300-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
1005 AM EDT TUE MAY 19 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 2 FT AT
9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: W 7 FT AT 6 SECONDS AND SE 2 FT AT 10 SECONDS.
PATCHY FOG AFTER MIDNIGHT WITH VSBY 1 NM OR LESS.
WED
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS AROUND
6 FT. WAVE DETAIL: W 6 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE
AFTERNOON.
WED NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 10 TO 15 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
6 FT AT 7 SECONDS AND N 2 FT AT 3 SECONDS. SHOWERS LIKELY. PATCHY
FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
THU
NE 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 N 2 FT AT 4 SECONDS.
SHOWERS LIKELY, MAINLY IN THE MORNING.
THU NIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 2 FT AT
6 SECONDS.
FRI
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. SHOWERS LIKELY.
SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. SHOWERS LIKELY.
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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