999
WHUS71 KBOX 201845
MWWBOX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
145 PM EST SAT DEC 20 2025
ANZ235-237-256-211000-
/O.CAN.KBOX.SC.Y.0131.000000T0000Z-251221T0600Z/
/O.UPG.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/
/O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/
RHODE ISLAND SOUND-BLOCK ISLAND SOUND-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
145 PM EST SAT DEC 20 2025
..GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY
* WHAT...WEST WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT AND SEAS
6 TO 9 FEET EXPECTED.
* WHERE...RHODE ISLAND SOUND, BLOCK ISLAND SOUND AND COASTAL
WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO 20
NM SOUTH OF BLOCK ISLAND.
* WHEN...FROM 1 AM SUNDAY TO 7 AM EST MONDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
ANZ255-211000-
/O.CAN.KBOX.SC.Y.0131.000000T0000Z-251221T0600Z/
/O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
145 PM EST SAT DEC 20 2025
..GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY
..SMALL CRAFT ADVISORY IS CANCELLED
* WHAT...WEST WINDS 25 TO 35 KT WITH GUSTS UP TO 40 KT AND SEAS
6 TO 9 FEET EXPECTED.
* WHERE...COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS
VINEYARD AND NANTUCKET.
* WHEN...FROM 1 AM SUNDAY TO 7 AM EST MONDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
ANZ231>234-251-211000-
/O.UPG.KBOX.SC.Y.0131.000000T0000Z-251221T1200Z/
/O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/
CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-BUZZARDS BAY-
MASSACHUSETTS BAY AND IPSWICH BAY-
145 PM EST SAT DEC 20 2025
..GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY
* WHAT...WEST WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND SEAS
3 TO 5 FEET EXPECTED.
* WHERE...CAPE COD BAY, NANTUCKET SOUND, VINEYARD SOUND,
BUZZARDS BAY AND MASSACHUSETTS BAY AND IPSWICH BAY.
* WHEN...FROM 1 AM SUNDAY TO 7 AM EST MONDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
ANZ250-254-211000-
/O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/
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-
145 PM EST SAT DEC 20 2025
..GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY
* WHAT...WEST WINDS 20 TO 30 KT WITH GUSTS UP TO 40 KT AND SEAS
4 TO 7 FEET EXPECTED.
* WHERE...COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN
BANK NATIONAL MARINE SANCTUARY AND COASTAL WATERS FROM
PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA OUT 20 NM.
* WHEN...FROM 1 AM SUNDAY TO 7 AM EST MONDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS SEAS WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
ANZ230-236-211000-
/O.NEW.KBOX.SC.Y.0132.251221T0600Z-251222T1200Z/
BOSTON HARBOR-NARRAGANSETT BAY-
145 PM EST SAT DEC 20 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST
MONDAY...
* WHAT...WEST WINDS 15 TO 25 KT WITH GUSTS UP TO 40 KT AND WAVES
2 TO 4 FEET EXPECTED.
* WHERE...IN MASSACHUSETTS COASTAL WATERS, BOSTON HARBOR. IN
RHODE ISLAND COASTAL WATERS, NARRAGANSETT BAY.
* WHEN...FROM 1 AM SUNDAY TO 7 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.
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