160
WHUS71 KBOX 200527
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
127 AM EDT FRI MAR 20 2026
ANZ251-202200-
/O.EXB.KBOX.SC.Y.0033.260320T1800Z-260321T0900Z/
MASSACHUSETTS BAY AND IPSWICH BAY-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
5 AM EDT SATURDAY...
* WHAT...SOUTH WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND SEAS
2 TO 4 FEET EXPECTED.
* WHERE...MASSACHUSETTS BAY AND IPSWICH BAY.
* WHEN...FROM 2 PM THIS AFTERNOON TO 5 AM EDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ236-202200-
/O.EXB.KBOX.SC.Y.0033.260320T1800Z-260321T0600Z/
NARRAGANSETT BAY-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
2 AM EDT SATURDAY...
* WHAT...SOUTH WINDS 10 TO 20 KT WITH GUSTS UP TO 30 KT AND
WAVES 2 TO 3 FEET EXPECTED.
* WHERE...NARRAGANSETT BAY.
* WHEN...FROM 2 PM THIS AFTERNOON TO 2 AM EDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ230-202200-
/O.EXB.KBOX.SC.Y.0033.260320T1800Z-260321T0600Z/
BOSTON HARBOR-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
2 AM EDT SATURDAY...
* WHAT...SOUTH WINDS 10 TO 20 KT WITH GUSTS UP TO 30 KT AND
WAVES 1 TO 2 FEET EXPECTED.
* WHERE...BOSTON HARBOR.
* WHEN...FROM 2 PM THIS AFTERNOON TO 2 AM EDT SATURDAY.
* 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>235-237-202200-
/O.EXT.KBOX.SC.Y.0033.260320T1800Z-260321T0900Z/
NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-RHODE ISLAND SOUND-
BLOCK ISLAND SOUND-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO
5 AM EDT SATURDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 3 TO 5 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, NANTUCKET SOUND,
VINEYARD SOUND AND BUZZARDS BAY. IN RHODE ISLAND COASTAL
WATERS, RHODE ISLAND SOUND AND BLOCK ISLAND SOUND.
* WHEN...FROM 2 PM THIS AFTERNOON TO 5 AM EDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ231-202200-
/O.EXT.KBOX.SC.Y.0033.260320T1800Z-260321T0900Z/
CAPE COD BAY-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 PM THIS AFTERNOON TO
5 AM EDT SATURDAY...
* WHAT...SOUTH WINDS 10 TO 20 KT WITH GUSTS UP TO 30 KT AND SEAS
3 TO 5 FEET EXPECTED.
* WHERE...CAPE COD BAY.
* WHEN...FROM 2 PM THIS AFTERNOON TO 5 AM EDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ250-254>256-202200-
/O.CON.KBOX.SC.Y.0033.260320T1800Z-260322T0000Z/
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
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-
127 AM EDT FRI MAR 20 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 8 PM EDT SATURDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, COASTAL WATERS EAST
OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL MARINE
SANCTUARY, COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA
TO NANTUCKET MA OUT 20 NM AND 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 2 PM THIS AFTERNOON TO 8 PM EDT SATURDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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