US Harbors
Visit our Sponsor
MARINER'S
WEATHER
Marine
Forecasts
Buoys
Sea Temp
Conditions
Satellite/Radar
Web Cams
Maine Harbors
Marine & Coastal Weather
Marine
Northeast Coast
& Maritimes

Click for a new Marine Forecast
WHX   CAR   GYX   BOX   OKX   Offshore   High Seas
Marine Forecast Resources
FZUS51 KBOX 111407 CWFBOX

COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1007 AM EDT WED MAR 11 2026


COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO 25 NM

ANZ200-120300- 1007 AM EDT WED MAR 11 2026

SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS...
A BACKDOOR COLD FRONT WILL PUSH SOUTHWARD INTO SOUTHERN NEW ENGLAND TODAY, BEFORE RETREATING BACK NORTH TONIGHT. A STRONGER COLD FRONT WILL MOVE THROUGH THE REGION THURSDAY. HIGH PRES WILL BUILD S OF THE WATERS FRI. A WARM FRONT WILL LIFT N INTO THE WATERS FRI EVENING FOLLOWED BY A COLD FRONT PASSAGE EARLY SAT. HIGH PRES WILL BUILD OVER THE WATERS SAT NIGHT THEN MOVE OFFSHORE SUN.

ANZ250-120300-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL MARINE SANCTUARY-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SE 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG. A SLIGHT CHANCE OF RAIN. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND NE 3 FT AT 6 SECONDS. PATCHY FOG. A CHANCE OF RAIN AFTER MIDNIGHT. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 4 FT AT 7 SECONDS. RAIN LIKELY. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: W 5 FT AT 6 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING.
FRI...  W WINDS 15 TO 20 KT, BECOMING SW IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 3 FT AT 10 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: S 6 FT AT 6 SECONDS AND SE 4 FT AT 10 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. A CHANCE OF RAIN.
SAT NIGHT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO 6 FT.
SUN...  NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 5 TO 7 FT. RAIN 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.

ANZ251-120300-
MASSACHUSETTS BAY AND IPSWICH BAY-
1007 AM EDT WED MAR 11 2026

THIS AFTERNOON...  NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING E 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 6 SECONDS. A SLIGHT CHANCE OF RAIN. PATCHY FOG WITH VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND NE 3 FT AT 6 SECONDS. PATCHY FOG. A CHANCE OF RAIN AFTER MIDNIGHT. VSBY 1 NM OR LESS.
THU...  SW WINDS AROUND 20 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND NE 2 FT AT 7 SECONDS. RAIN LIKELY. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND E 1 FOOT AT 8 SECONDS. A CHANCE OF RAIN IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT AT 5 SECONDS AND S 3 FT AT 6 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND N 1 FOOT AT 5 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 3 TO 4 FT. A CHANCE OF RAIN.
SAT NIGHT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 2 TO 4 FT.
SUN...  NE WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO 6 FT. RAIN 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.

ANZ231-120300-
CAPE COD BAY
1007 AM EDT WED MAR 11 2026

THIS AFTERNOON...  E WINDS AROUND 5 KT, BECOMING S. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT. WAVE DETAIL: NW 1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 2 SECONDS, BECOMING NE 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND NE 2 FT AT 7 SECONDS. PATCHY FOG. A CHANCE OF RAIN AFTER MIDNIGHT. VSBY 1 NM OR LESS.
THU...  SW WINDS 15 TO 20 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS. RAIN LIKELY WITH A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND SW 2 FT AT 8 SECONDS.
FRI NIGHT...  S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 4 SECONDS AND NW 2 FT AT 5 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO 4 FT. A CHANCE OF RAIN.
SAT NIGHT...  W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
SUN...  NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 3 TO 5 FT. RAIN 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.

ANZ254-120300-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA OUT 20 NM-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  SE WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND E 2 FT AT 9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND NE 2 FT AT 6 SECONDS, BECOMING S 7 FT AT 7 SECONDS AND NE 2 FT AT 7 SECONDS. AREAS OF FOG. A CHANCE OF RAIN AFTER MIDNIGHT. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL: S 8 FT AT 7 SECONDS AND NE 1 FOOT AT 7 SECONDS. PATCHY FOG. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE AFTERNOON. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT...  W WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND NW 4 FT AT 4 SECONDS. RAIN LIKELY WITH A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 15 TO 20 KT, BECOMING SW IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: W 4 FT AT 7 SECONDS AND S 4 FT AT 9 SECONDS, BECOMING S 4 FT AT 9 SECONDS AND N 3 FT AT 5 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS, BECOMING S 7 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 5 TO 7 FT, EXCEPT 8 TO 11 FT S AND E OF NANTUCKET. A CHANCE OF RAIN.
SAT NIGHT...  NW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO 7 FT.
SUN...  NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 4 TO 6 FT. A CHANCE OF RAIN.

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.

ANZ255-120300-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND NANTUCKET-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 20 TO 25 KT, INCREASING TO 25 TO 30 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT, BUILDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS, BECOMING S 9 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS. AREAS OF FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 25 TO 30 KT, BECOMING W 20 TO 25 KT IN THE AFTERNOON. SEAS 7 TO 10 FT. WAVE DETAIL: SW 10 FT AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE AFTERNOON. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM IN THE AFTERNOON.
THU NIGHT...  NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: W 7 FT AT 7 SECONDS AND SE 4 FT AT 9 SECONDS. RAIN LIKELY WITH A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE AFTERNOON. SEAS 4 TO 6 FT, SUBSIDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: SW 6 FT AT 9 SECONDS AND W 3 FT AT 5 SECONDS, BECOMING SW 4 FT AT 8 SECONDS AND SE 3 FT AT 10 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT, BUILDING TO 7 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SE 2 FT AT 10 SECONDS, BECOMING SW 10 FT AT 9 SECONDS AND W 1 FOOT AT 5 SECONDS. A CHANCE OF RAIN AFTER MIDNIGHT.
SAT...  W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 8 TO 11 FT.
SAT NIGHT...  NW WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
SUN...  E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT.
SUN NIGHT...  SE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 5 TO 7 FT. A CHANCE OF RAIN.

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.

ANZ256-120300-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO 20 NM SOUTH OF BLOCK ISLAND-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  S WINDS 5 TO 10 KT, INCREASING TO 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 2 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO 6 FT, BUILDING TO 6 TO 9 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT AT 6 SECONDS AND E 2 FT AT 9 SECONDS, BECOMING S 9 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. AREAS OF FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 6 TO 9 FT. WAVE DETAIL: S 9 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE MORNING, THEN RAIN IN THE AFTERNOON. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  NW WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND NW 3 FT AT 4 SECONDS. A CHANCE OF RAIN AND SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 9 SECONDS AND SE 3 FT AT 10 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT, BUILDING TO 7 TO 10 FT AFTER MIDNIGHT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND SE 2 FT AT 10 SECONDS, BECOMING SW 10 FT AT 9 SECONDS AND W 1 FOOT AT 5 SECONDS.
SAT...  W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. SEAS 7 TO 10 FT.
SAT NIGHT...  NW WINDS 20 TO 25 KT. SEAS 4 TO 6 FT.
SUN...  E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 4 FT.
SUN NIGHT...  SE WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 5 TO 7 FT. RAIN 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.

ANZ232-120300-
NANTUCKET SOUND-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 4 SECONDS AND NE 1 FOOT AT 6 SECONDS, BECOMING SW 5 FT AT 5 SECONDS AND NE 1 FOOT AT 6 SECONDS. AREAS OF FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND NE 1 FOOT AT 7 SECONDS. PATCHY FOG. RAIN. VSBY 1 NM OR LESS IN THE MORNING.
THU NIGHT...  W WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: W 3 FT AT 4 SECONDS AND SW 2 FT AT 8 SECONDS. RAIN LIKELY WITH A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND NW 2 FT AT 4 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND N 1 FOOT AT 6 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 4 TO 6 FT. A CHANCE OF RAIN.
SAT NIGHT...  W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
SUN...  E WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 3 TO 5 FT. RAIN 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.

ANZ233-120300-
VINEYARD SOUND-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 2 TO 4 FT, BUILDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND NE 1 FOOT AT 6 SECONDS, BECOMING SW 6 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS. AREAS OF FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND S 3 FT AT 9 SECONDS. A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
FRI NIGHT...  SW WINDS 25 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 RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 5 TO 7 FT.
SAT NIGHT...  NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
SUN...  E WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 3 TO 5 FT. RAIN 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.

ANZ234-120300-
BUZZARDS BAY-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE 1 FOOT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 1 FOOT AT 7 SECONDS. PATCHY FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 8 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS AROUND 10 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND NW 2 FT AT 5 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 4 TO 6 FT.
SAT NIGHT...  NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO 4 FT.
SUN...  E WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 3 TO 5 FT. RAIN 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.

ANZ235-120300-
RHODE ISLAND SOUND-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  SE WINDS AROUND 5 KT, INCREASING TO 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE 1 FOOT AT 8 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT, BECOMING SW 20 TO 25 KT AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT, BUILDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND E 1 FOOT AT 7 SECONDS, BECOMING S 7 FT AT 7 SECONDS AND E 1 FOOT AT 7 SECONDS. AREAS OF FOG IN THE EVENING. PATCHY FOG AFTER MIDNIGHT. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT IN THE AFTERNOON. GUSTS UP TO 30 KT. SEAS 5 TO 8 FT. WAVE DETAIL: S 8 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND S 3 FT AT 9 SECONDS. A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 9 SECONDS AND SE 3 FT AT 10 SECONDS.
FRI NIGHT...  S WINDS 20 TO 25 KT, BECOMING SW 25 TO 30 KT AFTER MIDNIGHT. SEAS 5 TO 8 FT. WAVE DETAIL: SW 8 FT AT 9 SECONDS AND W 2 FT AT 5 SECONDS. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT. SEAS 5 TO 8 FT.
SAT NIGHT...  NW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO 5 FT.
SUN...  E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO 3 FT.
SUN NIGHT...  SE WINDS 30 TO 35 KT WITH GUSTS UP TO 40 KT. SEAS 4 TO 6 FT. RAIN 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.

ANZ237-120300-
BLOCK ISLAND SOUND-
1007 AM EDT WED MAR 11 2026


... SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH THURSDAY AFTERNOON ...

THIS AFTERNOON...  SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND SE 2 FT AT 8 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
TONIGHT...  S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS AROUND 20 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 2 FT AT 8 SECONDS. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND W 2 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE EVENING.
FRI...  W WINDS AROUND 10 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 8 SECONDS AND S 3 FT AT 9 SECONDS.
FRI NIGHT...  SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W 4 FT AT 5 SECONDS. A CHANCE OF RAIN IN THE EVENING.
SAT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO 7 FT.
SAT NIGHT...  NW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
SUN...  E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND 2 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. SEAS 4 TO 6 FT. RAIN 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.

ANZ230-120300-
BOSTON HARBOR-
1007 AM EDT WED MAR 11 2026

THIS AFTERNOON...  NE WINDS 5 TO 10 KT. WAVES AROUND 2 FT, THEN 1 FOOT OR LESS. A SLIGHT CHANCE OF RAIN. PATCHY FOG WITH VSBY 1 NM OR LESS.
TONIGHT...  S WINDS 10 TO 15 KT, INCREASING TO 20 TO 25 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. PATCHY FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 15 TO 20 KT, BECOMING W IN THE AFTERNOON. GUSTS UP TO 25 KT. WAVES AROUND 2 FT. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. WAVES AROUND 2 FT. A CHANCE OF RAIN IN THE EVENING.
FRI...  W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. WAVES AROUND 2 FT.
FRI NIGHT...  S WINDS 20 TO 25 KT. WAVES AROUND 2 FT. A CHANCE OF RAIN.
SAT...  W WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. WAVES AROUND 2 FT. A CHANCE OF RAIN.
SAT NIGHT AND SUN...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING E 10 TO 15 KT. WAVES AROUND 2 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT. WAVES 2 TO 3 FT. RAIN 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.

ANZ236-120300-
NARRAGANSETT BAY-
1007 AM EDT WED MAR 11 2026

THIS AFTERNOON...  E WINDS AROUND 5 KT, BECOMING S. WAVES AROUND 2 FT. PATCHY FOG. VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS.
TONIGHT...  S WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT, BUILDING TO 3 TO 5 FT AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN. VSBY 1 NM OR LESS.
THU...  SW WINDS 15 TO 20 KT, BECOMING NW IN THE AFTERNOON. GUSTS UP TO 25 KT. WAVES 3 TO 5 FT, SUBSIDING TO 2 TO 3 FT IN THE AFTERNOON. RAIN. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT...  W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SNOW IN THE EVENING.
FRI...  W WINDS 5 TO 10 KT, BECOMING SW 15 TO 20 KT WITH GUSTS UP TO 25 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
FRI NIGHT...  SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO 5 FT. A CHANCE OF RAIN.
SAT...  W WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO 5 FT.
SAT NIGHT AND SUN...  NW WINDS 15 TO 20 KT, BECOMING E 10 TO 15 KT. WAVES 2 TO 3 FT.
SUN NIGHT...  SE WINDS 25 TO 30 KT WITH GUSTS UP TO 40 KT. WAVES 4 TO 6 FT. RAIN 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.

FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT WWW.WEATHER.GOV/BOSTON

YOU CAN FOLLOW US ON FACEBOOK AT WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV

YOU CAN FOLLOW US ON TWITTER AT @NWSBOSTON
Click for Sea Conditions
Wind, Wave
Pressure
Click for Sea Temperature
Sea
Temperature
Click for Buoy Reports
Buoy/CMAN
Reports
Click for Radar and Satellite
Radar and
Satellite
-- Weather Tools --
TEMPERATURE (Fahrenheit, Celsius, Kelvin)
TIME CONVERSIONS (UTC, GMT, 24 hour)
WIND SCALES (Beaufort, Saffir-Simpson)
WIND CHILL (Old vs New, Frostbite chart)
WEATHER CALCULATORS

www.maineharbors.com
Maine Harbors obtains forecasts and other information from the National Weather Service - (IWIN) and Environment Canada. US Forecasts are public domain and cannot be copyrighted. Canadian forecasts are copyright of Environment Canada.

Limitation of Liability - Maine Harbors does not warrant the accuracy, completeness, merchantability or fitness for a particular purpose of any of the weather information offered through this service. Under no circumstances shall Maine Harbors be liable to you or any other person for any indirect, special, incidental, or consequential damages arising from the use of this service.