442
FZUS51 KBOX 180805
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
405 AM EDT THU SEP 18 2025
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 25 NM
ANZ200-182100-
405 AM EDT THU SEP 18 2025
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
LOW PRES CONTINUES TO MOVE E FURTHER TO SEA THIS MORNING. A COLD
FRONT WILL CROSS THE REGION FRI, FOLLOWED BY A LARGE HIGH PRES
BUILDING IN FROM THE N FOR THIS WEEKEND.
ANZ250-182100-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF TSTMS THIS MORNING WITH VSBY 1 NM OR LESS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND SW 2 FT AT
3 SECONDS. PATCHY FOG IN THE EVENING WITH VSBY 1 NM OR LESS.
FRI
NW WINDS 10 TO 15 KT, BECOMING N 5 TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND
W 2 FT AT 3 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: N
4 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 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.
ANZ251-182100-
MASSACHUSETTS BAY AND IPSWICH BAY-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND NE 1 FOOT AT
4 SECONDS. PATCHY FOG THIS MORNING. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF TSTMS THIS MORNING.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
FRI
NW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND E
2 FT AT 7 SECONDS.
SAT
NE 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 E 1 FOOT AT 8 SECONDS.
SAT NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND S 1 FOOT AT
2 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 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.
ANZ231-182100-
CAPE COD BAY-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 7 SECONDS AND NE 1 FOOT AT 2 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS. PATCHY FOG IN THE EVENING.
FRI
NW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
FRI NIGHT
NE WINDS 10 TO 15 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT
AT 4 SECONDS AND N 2 FT AT 4 SECONDS.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, DIMINISHING
TO 5 TO 10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N
3 FT AT 5 SECONDS AND S 1 FOOT AT 5 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 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.
ANZ254-182100-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
405 AM EDT THU SEP 18 2025
TODAY
E WINDS 5 TO 10 KT, BECOMING NW THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS. PATCHY FOG. A SLIGHT
CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM
OR LESS AFTER MIDNIGHT.
FRI
NW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS AND W 2 FT AT
4 SECONDS.
FRI NIGHT
NE WINDS 5 TO 10 KT, BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
SAT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND N 2 FT AT
5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 7 SECONDS AND SE 1 FOOT AT 15 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 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.
ANZ255-182100-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
405 AM EDT THU SEP 18 2025
TODAY
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS THIS
MORNING.
TONIGHT
W WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W
2 FT AT 4 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS AFTER MIDNIGHT.
FRI
NW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
FRI NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND S
2 FT AT 7 SECONDS.
SAT AND SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: N 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
WAVE DETAIL: SE 4 FT AT 12 SECONDS AND SW 2 FT AT 3 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.
ANZ256-182100-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS AROUND 10 KT, BECOMING NW THIS AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS. PATCHY FOG THIS MORNING. A SLIGHT CHANCE OF SHOWERS
THIS MORNING.
TONIGHT
W WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS AND W 2 FT AT 3 SECONDS.
FRI
NW WINDS AROUND 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND NW 2 FT AT
3 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 4 SECONDS AND
SW 2 FT AT 6 SECONDS.
SAT AND SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
WAVE DETAIL: SE 4 FT AT 11 SECONDS AND E 3 FT AT 5 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.
ANZ232-182100-
NANTUCKET SOUND-
405 AM EDT THU SEP 18 2025
TODAY
NE WINDS 5 TO 10 KT, BECOMING NW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND NW 1 FOOT AT
2 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF SHOWERS THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 2 SECONDS
AND NE 1 FOOT AT 5 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM AFTER
MIDNIGHT.
FRI
NW WINDS AROUND 10 KT, BECOMING N IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND W 1 FOOT AT
4 SECONDS.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS
AND NW 1 FOOT AT 3 SECONDS.
SAT
NE WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND S
1 FOOT AT 5 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
NE 2 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN THROUGH MON 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.
ANZ233-182100-
VINEYARD SOUND-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING NW THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
2 SECONDS. PATCHY FOG THIS MORNING. A SLIGHT CHANCE OF SHOWERS
THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
FRI
NW WINDS AROUND 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND W 1 FOOT AT
4 SECONDS.
FRI NIGHT
E WINDS 5 TO 10 KT, BECOMING NE 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: N
2 FT AT 3 SECONDS AND SW 1 FOOT AT 5 SECONDS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 1 FOOT AT
5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT 10 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.
ANZ234-182100-
BUZZARDS BAY-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND NE 1 FOOT AT
2 SECONDS. PATCHY FOG THIS MORNING. A SLIGHT CHANCE OF SHOWERS
THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND W 1 FOOT AT 2 SECONDS.
FRI
NW WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND N 1 FOOT AT 3 SECONDS.
FRI NIGHT
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL:
N 2 FT AT 3 SECONDS AND SW 1 FOOT AT 4 SECONDS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND S 1 FOOT
AT 5 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE
2 FT AT 10 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.
ANZ235-182100-
RHODE ISLAND SOUND-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS AROUND 10 KT, BECOMING W THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS AND NE 1 FOOT AT
3 SECONDS. PATCHY FOG THIS MORNING. A SLIGHT CHANCE OF SHOWERS
THIS MORNING.
TONIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND W 2 FT AT 3 SECONDS.
FRI
NW WINDS AROUND 10 KT, BECOMING W IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 1 FOOT AT
3 SECONDS.
FRI NIGHT
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 3 SECONDS
AND S 2 FT AT 7 SECONDS.
SAT AND SAT NIGHT
E WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NE 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SE 3 FT AT 12 SECONDS AND SE 2 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.
ANZ237-182100-
BLOCK ISLAND SOUND-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND NE 1 FOOT AT
3 SECONDS. PATCHY FOG THIS MORNING. A SLIGHT CHANCE OF SHOWERS
THIS MORNING.
TONIGHT
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 6 SECONDS AND W 1 FOOT AT 2 SECONDS.
FRI
W WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT
AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
FRI NIGHT
N WINDS 10 TO 15 KT, BECOMING NE 15 TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND S
2 FT AT 6 SECONDS.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SE 3 FT AT 12 SECONDS AND E 2 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.
ANZ230-182100-
BOSTON HARBOR-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING E THIS AFTERNOON. WAVES
1 FOOT OR LESS. PATCHY FOG THIS MORNING. A CHANCE OF SHOWERS THIS
MORNING.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
FRI
NW WINDS AROUND 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SAT
NE 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.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 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.
ANZ236-182100-
NARRAGANSETT BAY-
405 AM EDT THU SEP 18 2025
TODAY
N WINDS 5 TO 10 KT, BECOMING W THIS AFTERNOON. WAVES
AROUND 2 FT. PATCHY FOG THIS MORNING.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
AROUND 2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI NIGHT
N WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
E WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SUN THROUGH MON 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.
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