439
WHUS71 KBOX 220449
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1149 PM EST SUN DEC 21 2025
ANZ255-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251223T0600Z/
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 5 TO 8 FEET.
* WHERE...COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS
VINEYARD AND NANTUCKET.
* WHEN...UNTIL 1 AM EST 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.
ANZ256-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251223T0000Z/
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET.
* WHERE...COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD
EXTENDING OUT TO 20 NM SOUTH OF BLOCK ISLAND.
* WHEN...UNTIL 7 PM EST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ250-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251223T0000Z/
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET.
* WHERE...COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN
BANK NATIONAL MARINE SANCTUARY.
* WHEN...UNTIL 7 PM EST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ254-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251223T0600Z/
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 4 TO 7 FEET.
* WHERE...COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO
NANTUCKET MA OUT 20 NM.
* WHEN...UNTIL 1 AM EST 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.
ANZ235-237-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251222T1800Z/
RHODE ISLAND SOUND-BLOCK ISLAND SOUND-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 3 TO 5 FEET.
* WHERE...RHODE ISLAND SOUND AND BLOCK ISLAND SOUND.
* WHEN...UNTIL 1 PM EST MONDAY.
* 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>234-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251222T1800Z/
NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 3 TO 5 FEET.
* WHERE...NANTUCKET SOUND, VINEYARD SOUND AND BUZZARDS BAY.
* WHEN...UNTIL 1 PM EST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ231-251-221800-
/O.CAN.KBOX.GL.W.0046.000000T0000Z-251222T1200Z/
/O.EXB.KBOX.SC.Y.0132.000000T0000Z-251222T1800Z/
CAPE COD BAY-MASSACHUSETTS BAY AND IPSWICH BAY-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY
..GALE WARNING IS CANCELLED
* WHAT...NORTHWEST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND
SEAS 3 TO 5 FEET.
* WHERE...CAPE COD BAY AND MASSACHUSETTS BAY AND IPSWICH BAY.
* WHEN...UNTIL 1 PM EST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ236-221600-
/O.EXT.KBOX.SC.Y.0132.000000T0000Z-251222T1600Z/
NARRAGANSETT BAY-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EST MONDAY
* WHAT...NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT AND
WAVES AROUND 3 FEET.
* WHERE...NARRAGANSETT BAY.
* WHEN...UNTIL 11 AM EST MONDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
ANZ230-221800-
/O.EXT.KBOX.SC.Y.0132.000000T0000Z-251222T1800Z/
BOSTON HARBOR-
1149 PM EST SUN DEC 21 2025
..SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST MONDAY
* WHAT...NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT AND
WAVES AROUND 2 FEET.
* WHERE...BOSTON HARBOR.
* WHEN...UNTIL 1 PM EST MONDAY.
* 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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