501
FZUS51 KBOX 301705
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
105 PM EDT SAT MAY 30 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-310600-
105 PM EDT SAT MAY 30 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A LOW PRES SYSTEM DROPS SOUTHEAST OF THE CAPE BY MID-MORNING SAT.
THIS WILL RESULT IN N-NE STORM FORCE WIND GUSTS ON SAT AND HAZARDOUS
CONDITIONS FOR SAT. HIGH PRES BRIEFLY BUILDS SOUTH OF THE WATERS SUN
BEFORE ANOTHER NORTHERN STREAM SHORTWAVE/LOW PRES SYSTEM CROSSES THE
REGION MON. LOW PRES WILL THEN MEANDER SOUTH OF THE WATERS INTO THE
MIDDLE OF NEXT WEEK.
ANZ250-310600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT.
SEAS 9 TO 13 FT. WAVE DETAIL: NE 13 FT AT 8 SECONDS AND NW 5 FT
AT 10 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, BECOMING
N 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 8 TO
11 FT, SUBSIDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE
11 FT AT 9 SECONDS AND NE 6 FT AT 3 SECONDS, BECOMING E 8 FT AT
9 SECONDS AND N 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
5 TO 7 FT. WAVE DETAIL: E 6 FT AT 9 SECONDS AND N 3 FT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
SW WINDS AROUND 5 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E
4 FT AT 9 SECONDS AND E 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: NE
3 FT AT 3 SECONDS AND S 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
MON NIGHT
E WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND E 3 FT AT
8 SECONDS.
TUE AND TUE NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WED
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-310600-
MASSACHUSETTS BAY AND IPSWICH BAY-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 7 TO 10 FT. WAVE DETAIL: NE 10 FT AT 9 SECONDS AND NE 5 FT
AT 6 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
N 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 6 TO
9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: NE 9 FT
AT 9 SECONDS AND NE 6 FT AT 4 SECONDS, BECOMING E 7 FT AT
9 SECONDS AND NW 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
SUN
NW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: E 6 FT AT 9 SECONDS AND N 2 FT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
S WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND W 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT
AT 6 SECONDS AND S 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
E WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 6 SECONDS AND E 3 FT AT
9 SECONDS.
TUE THROUGH WED
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-310600-
CAPE COD BAY-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: N 7 FT AT 6 SECONDS AND NE 7 FT AT
9 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT, BECOMING
N 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 5 TO
7 FT. WAVE DETAIL: NE 7 FT AT 9 SECONDS AND NW 6 FT AT
10 SECONDS. SHOWERS LIKELY IN THE EVENING.
SUN
NW WINDS 10 TO 15 KT, BECOMING SW AROUND 5 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 7 SECONDS AND E
2 FT AT 15 SECONDS.
SUN NIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 15 SECONDS AND NE 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 9 SECONDS AND SW 1 FOOT AT 2 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
MON NIGHT
NE WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT
AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT
12 SECONDS AND N 1 FOOT AT 3 SECONDS.
TUE THROUGH WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO
25 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.
ANZ254-310600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 7 TO 10 FT. WAVE DETAIL: NE 10 FT AT 10 SECONDS AND N 8 FT
AT 6 SECONDS. PATCHY FOG. SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT, BECOMING
N 20 TO 25 KT AFTER MIDNIGHT. SEAS 9 TO 12 FT, SUBSIDING TO 7 TO
10 FT AFTER MIDNIGHT. WAVE DETAIL: NE 12 FT AT 8 SECONDS AND NW
7 FT AT 5 SECONDS, BECOMING NE 10 FT AT 9 SECONDS AND N 4 FT AT
6 SECONDS. PATCHY FOG IN THE EVENING. SHOWERS LIKELY IN THE
EVENING WITH VSBY 1 TO 3 NM.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 6 TO 9 FT, SUBSIDING TO 5 TO
7 FT IN THE AFTERNOON. WAVE DETAIL: NE 8 FT AT 9 SECONDS AND E
4 FT AT 5 SECONDS, BECOMING E 6 FT AT 10 SECONDS AND SE 4 FT AT
7 SECONDS.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: E
5 FT AT 9 SECONDS AND E 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 9 SECONDS AND NE 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND NE 1 FOOT AT 4 SECONDS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT.
SEAS 2 TO 4 FT.
WED
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 15 TO 20 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.
ANZ255-310600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 35 TO 40 KT WITH GUSTS UP TO 45 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: NW 6 FT AT 6 SECONDS AND S 5 FT AT
7 SECONDS. SHOWERS.
TONIGHT
N WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT,
DIMINISHING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT AFTER MIDNIGHT.
SEAS 6 TO 9 FT. WAVE DETAIL: N 7 FT AT 7 SECONDS AND E 7 FT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
SUN
N WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND
NW 3 FT AT 4 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E
5 FT AT 10 SECONDS AND W 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS.
MON
NW WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND
E 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS
AND SW 2 FT AT 6 SECONDS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT. SEAS 2 TO 4 FT.
WED
NE WINDS 20 TO 25 KT. SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 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.
ANZ256-310600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 30 TO 40 KT WITH GUSTS UP TO 45 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: N 8 FT AT 6 SECONDS AND S 3 FT AT
7 SECONDS. SHOWERS LIKELY.
TONIGHT
N WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT,
DIMINISHING TO 20 TO 25 KT AFTER MIDNIGHT. SEAS 5 TO 8 FT,
SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: N 8 FT AT
6 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING NE 5 FT AT
6 SECONDS AND N 4 FT AT 5 SECONDS.
SUN
NW WINDS 10 TO 15 KT, BECOMING SW IN THE AFTERNOON. GUSTS
UP TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT AT 11 SECONDS
AND NW 2 FT AT 4 SECONDS.
SUN NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 3 TO 5 FT. WAVE DETAIL: E 4 FT AT 10 SECONDS AND SW
3 FT AT 4 SECONDS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 3 FT AT 6 SECONDS AND E 3 FT AT 10 SECONDS.
TUE THROUGH WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS AND NE
3 FT AT 4 SECONDS.
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.
ANZ232-310600-
NANTUCKET SOUND-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND S 1 FOOT AT
7 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT,
DIMINISHING TO 20 TO 25 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE
DETAIL: N 5 FT AT 6 SECONDS AND E 3 FT AT 10 SECONDS. SHOWERS
LIKELY IN THE EVENING.
SUN
N WINDS 10 TO 15 KT, BECOMING W IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND E 2 FT AT
10 SECONDS.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 2 FT AT 5 SECONDS. A CHANCE OF SHOWERS.
MON
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT. SEAS AROUND 2 FT.
WED AND WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ233-310600-
VINEYARD SOUND-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND S 2 FT AT
7 SECONDS. SHOWERS.
TONIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT,
DIMINISHING TO 15 TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT,
SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. WAVE DETAIL: N 4 FT AT
5 SECONDS AND NE 2 FT AT 10 SECONDS, BECOMING N 2 FT AT 4 SECONDS
AND E 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS IN THE EVENING.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND NE 1 FOOT AT 4 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E
1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.
MON
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E 1 FOOT AT
5 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 6 SECONDS AND E 1 FOOT AT 3 SECONDS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT.
SEAS AROUND 2 FT.
WED AND WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-310600-
BUZZARDS BAY-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: N 5 FT AT 6 SECONDS AND E 2 FT AT
10 SECONDS. PATCHY FOG. SHOWERS.
TONIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT,
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 3 TO 5 FT, SUBSIDING TO 2 FT AFTER MIDNIGHT. WAVE DETAIL: NW
5 FT AT 8 SECONDS AND NE 4 FT AT 4 SECONDS, BECOMING NE 2 FT AT
4 SECONDS AND SE 2 FT AT 12 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND
E 1 FOOT AT 5 SECONDS. A CHANCE OF SHOWERS.
MON
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 10 SECONDS AND E 1 FOOT AT
4 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: S 2 FT AT 13 SECONDS
AND E 1 FOOT AT 2 SECONDS, BECOMING NE 1 FOOT AT 2 SECONDS AND SW
1 FOOT AT 5 SECONDS.
TUE AND TUE NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
WED AND WED NIGHT
NE WINDS 15 TO 20 KT, BECOMING N 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-310600-
RHODE ISLAND SOUND-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: N 6 FT AT 5 SECONDS AND S 3 FT AT
7 SECONDS. SHOWERS.
TONIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT,
DIMINISHING TO 15 TO 20 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT,
SUBSIDING TO 2 TO 4 FT AFTER MIDNIGHT. WAVE DETAIL: N 6 FT AT
5 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING NE 3 FT AT
5 SECONDS AND NW 2 FT AT 4 SECONDS.
SUN
NW WINDS 10 TO 15 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE 2 FT AT
11 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND
SE 2 FT AT 10 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
N WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND
SE 2 FT AT 11 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS
AND S 2 FT AT 9 SECONDS.
TUE THROUGH WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO
25 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.
ANZ237-310600-
BLOCK ISLAND SOUND-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 25 TO 30 KT WITH GUSTS UP TO 45 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: N 5 FT AT 6 SECONDS AND S 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
TONIGHT
N WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT,
DIMINISHING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT.
SEAS 3 TO 5 FT, SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT. WAVE
DETAIL: N 5 FT AT 6 SECONDS AND S 1 FOOT AT 7 SECONDS, BECOMING
NW 2 FT AT 4 SECONDS AND NE 2 FT AT 5 SECONDS.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND E 2 FT AT 10 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E
2 FT AT 10 SECONDS.
MON
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E 2 FT AT
10 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND E 2 FT AT 9 SECONDS.
TUE THROUGH WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-310600-
BOSTON HARBOR-
105 PM EDT SAT MAY 30 2026
..GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
WAVES 2 TO 3 FT, EXCEPT 4 TO 6 FT AT THE OUTER HARBOR ENTRANCE.
PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
N 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT IN THE EVENING, THEN
1 FOOT OR LESS. AT THE OUTER HARBOR ENTRANCE, WAVES 3 TO 5 FT. A
CHANCE OF SHOWERS IN THE EVENING.
SUN
NW WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. WAVES
1 FOOT OR LESS, EXCEPT 2 TO 4 FT AT THE OUTER HARBOR ENTRANCE. A
CHANCE OF SHOWERS IN THE AFTERNOON.
SUN NIGHT
S WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON. A CHANCE OF SHOWERS.
MON NIGHT
E WINDS 5 TO 10 KT, BECOMING N AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
TUE AND TUE NIGHT
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT.
WAVES 1 FOOT OR LESS. A CHANCE OF SHOWERS.
WED AND WED NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING N 5 TO 10 KT. WAVES 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.
ANZ236-310600-
NARRAGANSETT BAY-
105 PM EDT SAT MAY 30 2026
..GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
WAVES AROUND 3 FT. SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SUN
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. WAVES
AROUND 2 FT.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES AROUND 2 FT. A CHANCE OF
SHOWERS.
MON
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. WAVES
AROUND 2 FT. SHOWERS LIKELY, MAINLY IN THE MORNING.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
TUE THROUGH WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES 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.
ANZ280-310600-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT.
SEAS 11 TO 12 FT. WAVE DETAIL: NE 12 FT AT 8 SECONDS AND NW 3 FT
AT 6 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, BECOMING
N 15 TO 20 KT WITH GUSTS UP TO 25 KT AFTER MIDNIGHT. SEAS 9 TO
12 FT, SUBSIDING TO 7 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: NE
12 FT AT 9 SECONDS AND N 6 FT AT 4 SECONDS, BECOMING NE 8 FT AT
9 SECONDS AND N 3 FT AT 4 SECONDS. A CHANCE OF SHOWERS IN THE
EVENING.
SUN
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
AROUND 5 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: E 6 FT
AT 9 SECONDS AND N 3 FT AT 5 SECONDS.
SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: E
5 FT AT 5 SECONDS AND E 4 FT AT 9 SECONDS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
MON
E WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: E 3 FT
AT 9 SECONDS AND E 2 FT AT 6 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
MON NIGHT
E WINDS AROUND 5 KT, BECOMING N AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND E 2 FT AT
5 SECONDS.
TUE AND TUE NIGHT
S WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT
WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT.
WED
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 8 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.
ANZ281-310600-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT.
SEAS 9 TO 12 FT. WAVE DETAIL: NE 12 FT AT 10 SECONDS AND N 8 FT
AT 7 SECONDS. PATCHY FOG. SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
VSBY 1 TO 3 NM.
TONIGHT
NE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT, BECOMING
N 20 TO 25 KT WITH GUSTS UP TO 30 KT AFTER MIDNIGHT. SEAS 10 TO
14 FT. WAVE DETAIL: NE 13 FT AT 9 SECONDS AND N 12 FT AT
7 SECONDS. PATCHY FOG IN THE EVENING. SHOWERS LIKELY IN THE
EVENING WITH VSBY 1 TO 3 NM.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 7 TO 10 FT, SUBSIDING TO 5 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: NE 9 FT AT 10 SECONDS AND E
4 FT AT 5 SECONDS, BECOMING NE 7 FT AT 10 SECONDS AND N 5 FT AT
6 SECONDS.
SUN NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: E 6 FT AT 9 SECONDS AND E
4 FT AT 5 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS AND SW 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
MON NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND SW 2 FT AT 6 SECONDS.
TUE
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT.
WED
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
8 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 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.
ANZ282-310600-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 30 TO 35 KT WITH GUSTS UP TO 45 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: W 8 FT AT 7 SECONDS AND N 6 FT AT
5 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 TO 3 NM.
TONIGHT
N WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT,
DIMINISHING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT AFTER MIDNIGHT.
SEAS 9 TO 12 FT. WAVE DETAIL: NE 10 FT AT 10 SECONDS AND N 8 FT
AT 7 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN
THE EVENING.
SUN
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING W
AROUND 10 KT IN THE AFTERNOON. SEAS 7 TO 10 FT, SUBSIDING TO 6 TO
8 FT IN THE AFTERNOON. WAVE DETAIL: NE 9 FT AT 10 SECONDS AND N
3 FT AT 6 SECONDS, BECOMING NE 7 FT AT 10 SECONDS AND N 3 FT AT
6 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: E 6 FT AT 10 SECONDS AND
SW 3 FT AT 6 SECONDS.
MON AND MON NIGHT
NE WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: E 5 FT AT 9 SECONDS AND SW 3 FT AT 6 SECONDS.
TUE
NE WINDS AROUND 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
4 FT AT 5 SECONDS AND S 3 FT AT 8 SECONDS.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS.
WED AND WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 8 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.
ANZ283-310600-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
105 PM EDT SAT MAY 30 2026
..STORM WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 30 TO 40 KT WITH GUSTS UP TO 45 KT.
SEAS 7 TO 10 FT. WAVE DETAIL: N 10 FT AT 7 SECONDS AND E 6 FT AT
9 SECONDS. SHOWERS LIKELY.
TONIGHT
N WINDS 25 TO 35 KT WITH GUSTS UP TO 45 KT,
DIMINISHING TO 20 TO 25 KT WITH GUSTS UP TO 30 KT AFTER MIDNIGHT.
SEAS 8 TO 11 FT, SUBSIDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE
DETAIL: N 10 FT AT 7 SECONDS AND NE 9 FT AT 9 SECONDS, BECOMING
NE 8 FT AT 9 SECONDS AND N 7 FT AT 7 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING.
SUN
NW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 8 FT. WAVE DETAIL: E 6 FT AT 11 SECONDS AND
NW 5 FT AT 6 SECONDS.
SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 6 FT. WAVE DETAIL: E 5 FT AT 10 SECONDS AND W 3 FT AT
4 SECONDS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND E 4 FT AT
9 SECONDS.
TUE
NE WINDS AROUND 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE
5 FT AT 5 SECONDS AND E 3 FT AT 8 SECONDS.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 5 TO
7 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
6 TO 9 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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