590
WHUS71 KBOX 300719
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
319 AM EDT MON MAR 30 2026
ANZ255-256-302030-
/O.EXT.KBOX.SC.Y.0037.000000T0000Z-260401T2300Z/
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-
319 AM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EDT WEDNESDAY
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH A FEW GUSTS UP TO 35 KT
AND SEAS 7 TO 12 FEET.
* 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...UNTIL 7 PM EDT WEDNESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ254-302030-
/O.EXT.KBOX.SC.Y.0037.000000T0000Z-260401T2300Z/
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
319 AM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EDT WEDNESDAY
* WHAT...SOUTHWEST WINDS 20 TO 30 KT AND SEAS 7 TO 10 FEET.
* WHERE...COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO
NANTUCKET MA OUT 20 NM.
* WHEN...UNTIL 7 PM EDT WEDNESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ235-237-302030-
/O.EXT.KBOX.SC.Y.0037.000000T0000Z-260401T2300Z/
RHODE ISLAND SOUND-BLOCK ISLAND SOUND-
319 AM EDT MON MAR 30 2026
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EDT WEDNESDAY
* WHAT...SOUTHWEST WINDS 20 TO 30 KT WITH A FEW GUSTS UP TO 35 KT
AND SEAS 6 TO 9 FEET.
* WHERE...RHODE ISLAND SOUND AND BLOCK ISLAND SOUND.
* WHEN...UNTIL 7 PM EDT WEDNESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ250-302030-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-260331T0300Z/
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
319 AM EDT MON MAR 30 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 3 TO 5 FEET.
* WHERE...COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN
BANK NATIONAL MARINE SANCTUARY.
* WHEN...UNTIL 11 PM EDT THIS EVENING.
* 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>234-302030-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-260331T0600Z/
NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-
319 AM EDT MON MAR 30 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH A FEW GUSTS UP TO 35 KT
AND SEAS 4 TO 6 FEET.
* WHERE...NANTUCKET SOUND, VINEYARD SOUND AND BUZZARDS BAY.
* WHEN...UNTIL 2 AM EDT TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ231-251-302030-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-260331T0300Z/
CAPE COD BAY-MASSACHUSETTS BAY AND IPSWICH BAY-
319 AM EDT MON MAR 30 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS
EVENING...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 2 TO 3 FEET.
* WHERE...CAPE COD BAY AND MASSACHUSETTS BAY AND IPSWICH BAY.
* WHEN...UNTIL 11 PM EDT THIS EVENING.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ230-236-302030-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-260331T0000Z/
BOSTON HARBOR-NARRAGANSETT BAY-
319 AM EDT MON MAR 30 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
* WHAT...SOUTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
WAVES 2 TO 4 FEET.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, BOSTON HARBOR. IN
RHODE ISLAND COASTAL WATERS, NARRAGANSETT BAY.
* WHEN...UNTIL 8 PM EDT THIS EVENING.
* 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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