085
FZUS51 KBOX 270503
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT SUN SEP 27 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-271800-
103 AM EDT SUN SEP 27 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A SLOW MOVING NOR'EASTER WILL CONTINUE TO BRING DANGEROUS
CONDITIONS FOR MARINERS THROUGH THE WEEKEND. NE WIND GUSTS OF 40 TO
60 KT WITH MAXIMUM SEAS OF 15-25 FEET ACROSS THE OPEN WATERS
CONTINUE INTO EARLY SUN. NE WINDS WILL ONLY GRADUALLY DIMINISH TO
GALE FORCE LEVELS ON SUN AND FINALLY BACK TO SMALL CRAFT LEVELS BY
MON. SEAS SLOWLY DIMINISH SUN INTO MON...BUT REMAIN WELL ABOVE SMALL
CRAFT ADVISORY THRESHOLDS.
WINDS AND SEAS WILL FINALLY DROP BELOW SMALL CRAFT FOR THE MIDDLE
AND LATTER HALF OF THE UPCOMING WORK WEEK AS THE NOR'EASTER FINALLY
LOSES ITS GRIP ON OUR REGION.
ANZ250-271800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 11 TO 13 FT. WAVE DETAIL: NE 13 FT AT 10 SECONDS AND E 2 FT
AT 3 SECONDS. SHOWERS.
SUN
E WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT. SEAS 11 TO
13 FT, SUBSIDING TO 9 TO 12 FT IN THE AFTERNOON. WAVE DETAIL: NE
13 FT AT 9 SECONDS AND E 2 FT AT 4 SECONDS, BECOMING E 12 FT AT
9 SECONDS AND E 3 FT AT 4 SECONDS. SHOWERS LIKELY.
SUN NIGHT
E WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
8 TO 11 FT. WAVE DETAIL: E 11 FT AT 10 SECONDS. SHOWERS LIKELY.
MON
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 6 TO 9 FT. WAVE DETAIL: E 9 FT
AT 8 SECONDS AND SE 2 FT AT 8 SECONDS. SHOWERS LIKELY.
MON NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE
DETAIL: E 7 FT AT 8 SECONDS AND SE 2 FT AT 7 SECONDS. SHOWERS
LIKELY, MAINLY IN THE EVENING.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND S 2 FT AT 7 SECONDS.
TUE NIGHT
N WINDS AROUND 5 KT. SEAS 3 TO 4 FT.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 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.
ANZ251-271800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 8 TO 11 FT. WAVE DETAIL: E 11 FT AT 10 SECONDS AND E 2 FT AT
4 SECONDS. SHOWERS.
SUN
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT. SEAS 8 TO
11 FT. WAVE DETAIL: NE 11 FT AT 9 SECONDS AND E 2 FT AT
4 SECONDS. SHOWERS.
SUN NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
7 TO 10 FT, SUBSIDING TO 5 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: E
10 FT AT 10 SECONDS, BECOMING E 8 FT AT 10 SECONDS. SHOWERS.
MON
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: E 7 FT AT 9 SECONDS AND E 2 FT AT 9 SECONDS.
SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE
DETAIL: E 6 FT AT 8 SECONDS AND SE 1 FOOT AT 8 SECONDS. SHOWERS.
TUE
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: E 5 FT AT 8 SECONDS AND SW 3 FT AT 7 SECONDS.
TUE NIGHT
N WINDS AROUND 5 KT. SEAS 2 TO 4 FT.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 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.
ANZ231-271800-
CAPE COD BAY-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: NE 7 FT AT 6 SECONDS AND S 4 FT AT
5 SECONDS. SHOWERS.
SUN
E WINDS 25 TO 30 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 40 KT. SEAS 5 TO 7 FT. WAVE DETAIL: NE
7 FT AT 6 SECONDS AND S 3 FT AT 5 SECONDS. SHOWERS.
SUN NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: NE 5 FT AT 8 SECONDS AND E 3 FT AT
5 SECONDS. SHOWERS LIKELY.
MON
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
4 FT AT 7 SECONDS AND E 2 FT AT 4 SECONDS. SHOWERS LIKELY, MAINLY
IN THE MORNING.
MON NIGHT
E WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND S 2 FT AT
6 SECONDS. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND SW 2 FT AT
5 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 KT. 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.
ANZ254-271800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
E WINDS 20 TO 25 KT WITH GUSTS UP TO 40 KT.
SEAS 9 TO 13 FT. WAVE DETAIL: NE 13 FT AT 10 SECONDS AND NE 2 FT
AT 4 SECONDS. SHOWERS LIKELY.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 9 TO 12 FT. WAVE DETAIL: NE
12 FT AT 10 SECONDS AND SE 6 FT AT 8 SECONDS. SHOWERS LIKELY IN
THE MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
6 TO 9 FT. WAVE DETAIL: NE 9 FT AT 9 SECONDS AND S 5 FT AT
8 SECONDS. A CHANCE OF SHOWERS.
MON
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 5 TO 8 FT. WAVE DETAIL: NE
7 FT AT 9 SECONDS AND S 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
SE WINDS 5 TO 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: E
6 FT AT 8 SECONDS AND S 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
TUE
SW WINDS 10 TO 15 KT, BECOMING NW WITH GUSTS UP TO 20 KT
IN THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: E 5 FT AT
8 SECONDS AND SW 3 FT AT 7 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 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.
ANZ255-271800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
E WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 8 TO 11 FT. WAVE DETAIL: E 11 FT AT 10 SECONDS AND SE 4 FT
AT 11 SECONDS. SHOWERS LIKELY.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 8 TO 11 FT, SUBSIDING TO 6 TO
9 FT IN THE AFTERNOON. WAVE DETAIL: E 11 FT AT 10 SECONDS AND SW
6 FT AT 14 SECONDS, BECOMING E 9 FT AT 9 SECONDS AND S 7 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND E 5 FT AT
9 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING.
MON
SE WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 4 FT
AT 7 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E 4 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE
W WINDS 10 TO 15 KT, BECOMING NW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND E 3 FT AT
8 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 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.
ANZ256-271800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 50 KT.
SEAS 10 TO 13 FT. WAVE DETAIL: NE 13 FT AT 9 SECONDS AND W 2 FT
AT 9 SECONDS. SHOWERS LIKELY.
SUN
E WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT, DIMINISHING TO
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 9 TO
12 FT, SUBSIDING TO 7 TO 10 FT IN THE AFTERNOON. WAVE DETAIL: E
12 FT AT 9 SECONDS AND NW 5 FT AT 9 SECONDS, BECOMING E 10 FT AT
9 SECONDS AND S 8 FT AT 11 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 7 FT. WAVE DETAIL: SE 5 FT AT 8 SECONDS AND NE 5 FT AT
9 SECONDS. SHOWERS LIKELY.
MON
SE WINDS AROUND 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW
5 FT AT 7 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
MON NIGHT
S WINDS AROUND 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 4 TO 6 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
TUE
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT
AT 6 SECONDS AND E 2 FT AT 9 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 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.
ANZ232-271800-
NANTUCKET SOUND-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
E WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: E 7 FT AT 9 SECONDS. SHOWERS.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: E 6 FT
AT 9 SECONDS AND SE 3 FT AT 6 SECONDS. SHOWERS LIKELY.
SUN NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
3 TO 5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND SE 3 FT AT
7 SECONDS. SHOWERS LIKELY.
MON
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT
AT 9 SECONDS AND SE 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
SE WINDS 5 TO 10 KT, BECOMING S AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 KT. 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.
ANZ233-271800-
VINEYARD SOUND-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 6 SECONDS AND SE 1 FOOT
AT 9 SECONDS. SHOWERS.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE
6 FT AT 7 SECONDS AND S 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING. SHOWERS LIKELY IN THE AFTERNOON.
SUN NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: E 4 FT AT 7 SECONDS. SHOWERS.
MON
E WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND SE 1 FOOT
AT 13 SECONDS. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 7 SECONDS AND E 1 FOOT AT 14 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 KT. 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.
ANZ234-271800-
BUZZARDS BAY-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: E 4 FT AT 5 SECONDS. SHOWERS.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 35 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E 4 FT
AT 5 SECONDS. SHOWERS LIKELY.
SUN NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS. SHOWERS LIKELY.
MON
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT
AT 5 SECONDS AND NE 2 FT AT 9 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
E WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND E 1 FOOT AT
18 SECONDS. A CHANCE OF SHOWERS.
TUE AND TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 6 SECONDS AND E 1 FOOT AT 12 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. 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.
ANZ235-271800-
RHODE ISLAND SOUND-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 6 TO 9 FT. WAVE DETAIL: NE 9 FT AT 8 SECONDS AND SW 1 FOOT
AT 10 SECONDS. SHOWERS.
SUN
E WINDS 25 TO 30 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 6 TO 9 FT. WAVE DETAIL: NE 9 FT AT 9 SECONDS AND
S 6 FT AT 12 SECONDS. A CHANCE OF SHOWERS IN THE MORNING. SHOWERS
LIKELY IN THE AFTERNOON.
SUN NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL:
NE 6 FT AT 7 SECONDS AND S 5 FT AT 8 SECONDS. SHOWERS.
MON
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT
AT 7 SECONDS AND E 3 FT AT 8 SECONDS. SHOWERS LIKELY.
MON NIGHT
SE WINDS 10 TO 15 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND E 2 FT AT
11 SECONDS. SHOWERS LIKELY IN THE EVENING.
TUE AND TUE NIGHT
NW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-271800-
BLOCK ISLAND SOUND-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 50 KT.
SEAS 7 TO 10 FT. WAVE DETAIL: NE 9 FT AT 8 SECONDS AND SW 1 FOOT
AT 10 SECONDS. SHOWERS.
SUN
E WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT, DIMINISHING TO
15 TO 20 KT WITH GUSTS UP TO 30 KT IN THE AFTERNOON. SEAS 6 TO
9 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS AND E 9 FT AT 8 SECONDS.
SHOWERS LIKELY.
SUN NIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT
AFTER MIDNIGHT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E
6 FT AT 8 SECONDS AND S 4 FT AT 8 SECONDS. SHOWERS.
MON
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SE 4 FT AT 7 SECONDS AND E 3 FT AT 9 SECONDS.
SHOWERS.
MON NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND E 2 FT AT 9 SECONDS. SHOWERS LIKELY IN THE
EVENING.
TUE AND TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: W 3 FT AT 6 SECONDS AND E 2 FT AT 9 SECONDS.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-271800-
BOSTON HARBOR-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS AROUND 30 KT WITH GUSTS UP TO 45 KT.
WAVES 3 TO 4 FT, EXCEPT 5 TO 7 FT AT THE OUTER HARBOR ENTRANCE.
SHOWERS.
SUN
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT, DIMINISHING
TO 20 TO 25 KT WITH GUSTS UP TO 35 KT IN THE AFTERNOON. WAVES
2 TO 4 FT, EXCEPT 5 TO 7 FT AT THE OUTER HARBOR ENTRANCE.
SHOWERS.
SUN NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. WAVES
2 TO 3 FT, EXCEPT 4 TO 6 FT AT THE OUTER HARBOR ENTRANCE.
SHOWERS.
MON
NE WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. WAVES 2 TO 3 FT, EXCEPT 4 TO 6 FT
AT THE OUTER HARBOR ENTRANCE. SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SHOWERS.
TUE AND TUE NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS,
EXCEPT 2 TO 4 FT AT THE OUTER HARBOR ENTRANCE.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR
LESS.
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.
ANZ236-271800-
NARRAGANSETT BAY-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
WAVES AROUND 3 FT, EXCEPT 4 TO 6 FT AT THE BAY ENTRANCE. SHOWERS.
SUN
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. WAVES AROUND 3 FT, EXCEPT 4 TO 6 FT
AT THE BAY ENTRANCE. SHOWERS LIKELY.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. WAVES
2 TO 3 FT. SHOWERS.
MON
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT. SHOWERS.
MON NIGHT
E WINDS 10 TO 15 KT, BECOMING SW AFTER MIDNIGHT.
WAVES 2 TO 3 FT. SHOWERS LIKELY, MAINLY IN THE EVENING.
TUE AND TUE NIGHT
NW WINDS 5 TO 10 KT. WAVES 2 TO 3 FT.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-271800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 12 TO 13 FT. WAVE DETAIL: E 13 FT AT 10 SECONDS AND E 2 FT
AT 3 SECONDS. SHOWERS LIKELY.
SUN
E WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 11 TO
13 FT. WAVE DETAIL: E 13 FT AT 10 SECONDS AND E 4 FT AT
5 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
E WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT. SEAS
9 TO 11 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND SE 5 FT AT
9 SECONDS. SHOWERS LIKELY.
MON
E WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 7 TO 9 FT. WAVE DETAIL: E 9 FT
AT 8 SECONDS AND S 3 FT AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN
THE MORNING.
MON NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
SE 5 TO 10 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT. WAVE DETAIL: E 7 FT
AT 8 SECONDS AND S 2 FT AT 7 SECONDS. SHOWERS LIKELY.
TUE
E WINDS 10 TO 15 KT, BECOMING N WITH GUSTS UP TO 20 KT IN
THE AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS
AND S 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
TUE NIGHT
N WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 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.
ANZ281-271800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
E WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 12 TO 13 FT. WAVE DETAIL: E 13 FT AT 10 SECONDS AND NE 2 FT
AT 5 SECONDS. SHOWERS LIKELY.
SUN
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 11 TO
13 FT, SUBSIDING TO 9 TO 11 FT IN THE AFTERNOON. WAVE DETAIL: E
13 FT AT 10 SECONDS AND N 8 FT AT 9 SECONDS, BECOMING E 11 FT AT
9 SECONDS AND S 8 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
E WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
7 TO 10 FT. WAVE DETAIL: NE 8 FT AT 9 SECONDS AND S 6 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
MON
E WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT, BECOMING SE
5 TO 10 KT IN THE AFTERNOON. SEAS 7 TO 9 FT. WAVE DETAIL: NE 7 FT
AT 9 SECONDS AND S 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
S WINDS 5 TO 10 KT. SEAS 7 TO 8 FT. WAVE DETAIL: E
6 FT AT 8 SECONDS AND S 4 FT AT 7 SECONDS. A CHANCE OF SHOWERS.
TUE
SW WINDS AROUND 10 KT, BECOMING NW IN THE AFTERNOON. SEAS
5 TO 7 FT. WAVE DETAIL: E 5 FT AT 9 SECONDS AND S 4 FT AT
7 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
WED THROUGH THU NIGHT
SW 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.
ANZ282-271800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 12 TO 14 FT. WAVE DETAIL: E 14 FT AT 10 SECONDS AND N 2 FT
AT 10 SECONDS. A CHANCE OF SHOWERS.
SUN
SE WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT IN THE
AFTERNOON. GUSTS UP TO 30 KT. SEAS 10 TO 13 FT, SUBSIDING TO 8 TO
11 FT IN THE AFTERNOON. WAVE DETAIL: SE 13 FT AT 10 SECONDS AND
SW 11 FT AT 9 SECONDS, BECOMING S 9 FT AT 9 SECONDS AND NE 6 FT
AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 5 TO 10 KT. SEAS 7 TO 9 FT, SUBSIDING TO
6 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND NE
6 FT AT 9 SECONDS, BECOMING S 5 FT AT 7 SECONDS AND NE 5 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
MON
S WINDS 5 TO 10 KT. SEAS 6 TO 8 FT. WAVE DETAIL: SW 5 FT
AT 7 SECONDS AND NE 5 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 6 TO 8 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND
NE 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
TUE
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 8 FT, SUBSIDING TO 5 TO 6 FT IN THE AFTERNOON. WAVE
DETAIL: SW 5 FT AT 7 SECONDS AND E 4 FT AT 8 SECONDS, BECOMING SW
5 FT AT 7 SECONDS AND E 4 FT AT 9 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 4 TO 5 FT.
WED THROUGH THU NIGHT
SW WINDS 5 TO 10 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.
ANZ283-271800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT SUN SEP 27 2026
..STORM WARNING IN EFFECT UNTIL 10 AM EDT THIS MORNING
REST OF TONIGHT
E WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 12 TO 15 FT. WAVE DETAIL: E 15 FT AT 10 SECONDS AND NW 3 FT
AT 7 SECONDS. A CHANCE OF SHOWERS.
SUN
SE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, DIMINISHING
TO 10 TO 15 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS
10 TO 14 FT, SUBSIDING TO 7 TO 10 FT IN THE AFTERNOON. WAVE
DETAIL: E 13 FT AT 10 SECONDS AND NW 11 FT AT 8 SECONDS, BECOMING
S 9 FT AT 8 SECONDS AND E 6 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 5 TO 8 FT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND E
5 FT AT 9 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING.
MON
S WINDS AROUND 10 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 5 FT
AT 7 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
6 TO 7 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 4 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 3 FT AT
8 SECONDS.
TUE NIGHT
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
WED THROUGH THU NIGHT
SW WINDS 10 TO 15 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.
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