751
WHUS71 KBOX 171809
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
209 PM EDT WED JUN 17 2026
ANZ255-256-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260620T0000Z/
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO
8 PM EDT FRIDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 5 TO 8 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS
EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND
NANTUCKET. IN RHODE ISLAND COASTAL WATERS, COASTAL WATERS FROM
MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO 20 NM SOUTH OF
BLOCK ISLAND.
* WHEN...FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ254-180715-
/O.CON.KBOX.SC.Y.0067.260618T1800Z-260620T0000Z/
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THURSDAY TO
8 PM EDT FRIDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET EXPECTED.
* WHERE...COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO
NANTUCKET MA OUT 20 NM.
* WHEN...FROM 2 PM THURSDAY TO 8 PM EDT FRIDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ235-237-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260620T0000Z/
RHODE ISLAND SOUND-BLOCK ISLAND SOUND-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO
8 PM EDT FRIDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET EXPECTED.
* WHERE...RHODE ISLAND SOUND AND BLOCK ISLAND SOUND.
* WHEN...FROM 11 AM THURSDAY TO 8 PM EDT FRIDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ251-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260618T2300Z/
MASSACHUSETTS BAY AND IPSWICH BAY-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...
* WHAT...SOUTH WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT AND SEAS
3 TO 5 FEET EXPECTED.
* WHERE...MASSACHUSETTS BAY AND IPSWICH BAY.
* WHEN...FROM 11 AM TO 7 PM EDT THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ232-233-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260619T0500Z/
NANTUCKET SOUND-VINEYARD SOUND-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO
1 AM EDT FRIDAY...
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND SEAS
3 TO 5 FEET EXPECTED.
* WHERE...NANTUCKET SOUND AND VINEYARD SOUND.
* WHEN...FROM 11 AM THURSDAY TO 1 AM EDT FRIDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ230-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260618T2300Z/
BOSTON HARBOR-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
WAVES AROUND 2 FEET EXPECTED.
* WHERE...BOSTON HARBOR.
* WHEN...FROM 11 AM TO 7 PM EDT THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ236-180715-
/O.CON.KBOX.SC.Y.0067.260618T1500Z-260618T2300Z/
NARRAGANSETT BAY-
209 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...
* WHAT...SOUTH WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT AND
WAVES 3 TO 5 FEET EXPECTED.
* WHERE...NARRAGANSETT BAY.
* WHEN...FROM 11 AM TO 7 PM EDT THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ250-280-180715-
/O.CON.KBOX.GL.A.0014.260618T1500Z-260619T0200Z/
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
209 PM EDT WED JUN 17 2026
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 40 KT AND SEAS
4 TO 7 FEET POSSIBLE.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS EAST
OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL MARINE
SANCTUARY. IN ATLANTIC COASTAL WATERS, OCEAN WATERS FROM THE
MERRIMACK RIVER TO PLYMOUTH FROM 40 TO 60 NM.
* WHEN...FROM THURSDAY MORNING THROUGH THURSDAY EVENING.
* IMPACTS...STRONG WINDS CAN CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD CONSIDER ALTERING PLANS TO AVOID POSSIBLE
HAZARDOUS CONDITIONS. REMAIN IN PORT, SEEK SAFE HARBOR, ALTER
COURSE, AND/OR SECURE THE VESSEL FOR SEVERE WIND AND WAVES.
ANZ231-234-180715-
/O.CON.KBOX.GL.A.0014.260618T1500Z-260618T2300Z/
CAPE COD BAY-BUZZARDS BAY-
209 PM EDT WED JUN 17 2026
...GALE WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 35 KT AND SEAS
3 TO 5 FEET POSSIBLE.
* WHERE...CAPE COD BAY AND BUZZARDS BAY.
* WHEN...FROM THURSDAY MORNING THROUGH THURSDAY EVENING.
* IMPACTS...STRONG WINDS CAN CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD CONSIDER ALTERING PLANS TO AVOID POSSIBLE
HAZARDOUS CONDITIONS. REMAIN IN PORT, SEEK SAFE HARBOR, ALTER
COURSE, AND/OR SECURE THE VESSEL FOR SEVERE WIND AND SEAS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page