Marine Weather Message - Issued When Needed Check the date and area (our area is ANZ251)
WHUS71 KBOX 020717
MWWBOX
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
217 AM EST Tue Dec 2 2025
ANZ250-254-255-022030-
/O.CON.KBOX.GL.W.0039.251203T0000Z-251203T1800Z/
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-
217 AM EST Tue Dec 2 2025
...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST WEDNESDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas
6 to 9 feet expected.
* WHERE...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.
* WHEN...From 7 PM this evening to 1 PM EST Wednesday.
* 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.
&&
$$
ANZ231-251-022030-
/O.CON.KBOX.GL.W.0039.251203T0000Z-251203T1800Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
217 AM EST Tue Dec 2 2025
...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST WEDNESDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas
3 to 5 feet expected.
* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.
* WHEN...From 7 PM this evening to 1 PM EST Wednesday.
* IMPACTS...Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
ANZ232-022030-
/O.CON.KBOX.GL.W.0039.251203T0000Z-251203T1800Z/
Nantucket Sound-
217 AM EST Tue Dec 2 2025
...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST WEDNESDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas
4 to 6 feet expected.
* WHERE...Nantucket Sound.
* WHEN...From 7 PM this evening to 1 PM EST Wednesday.
* 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.
&&
$$
ANZ230-022030-
/O.CON.KBOX.GL.W.0039.251203T0000Z-251203T1200Z/
Boston Harbor-
217 AM EST Tue Dec 2 2025
...GALE WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 AM
EST WEDNESDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and
waves 1 to 3 feet expected.
* WHERE...Boston Harbor.
* WHEN...From 7 PM this evening to 7 AM EST Wednesday.
* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
ANZ256-022030-
/O.CON.KBOX.SC.Y.0123.251202T2100Z-251204T0600Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
217 AM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 1 AM EST THURSDAY...
* WHAT...Northwest winds 20 to 30 kt and seas 6 to 9 feet
expected.
* WHERE...Coastal Waters from Montauk NY to Marthas Vineyard
extending out to 20 nm South of Block Island.
* WHEN...From 4 PM this afternoon to 1 AM EST 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.
&&
$$
ANZ233>235-237-022030-
/O.CON.KBOX.SC.Y.0123.251202T2100Z-251204T0000Z/
Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound-
217 AM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 7 PM EST WEDNESDAY...
* WHAT...North winds 20 to 30 kt and seas 4 to 6 feet expected.
* WHERE...In Massachusetts coastal waters, Vineyard Sound and
Buzzards Bay. In Rhode Island coastal waters, Rhode Island
Sound and Block Island Sound.
* WHEN...From 4 PM this afternoon to 7 PM EST Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ236-022030-
/O.CON.KBOX.SC.Y.0123.251202T2100Z-251203T1200Z/
Narragansett Bay-
217 AM EST Tue Dec 2 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 7 AM EST WEDNESDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and
waves 2 to 3 feet expected.
* WHERE...Narragansett Bay.
* WHEN...From 4 PM this afternoon to 7 AM EST 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.
&&
$$
