Marine Weather Message - Issued When Needed Check the date and area (our area is ANZ251)
WHUS71 KBOX 151915
MWWBOX
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
315 PM EDT Wed Oct 15 2025
ANZ231-251-160815-
/O.CON.KBOX.GL.W.0029.251016T1200Z-251018T0000Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
315 PM EDT Wed Oct 15 2025
...GALE WARNING REMAINS IN EFFECT FROM 8 AM THURSDAY TO 8 PM EDT
FRIDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and seas
4 to 6 feet expected.
* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.
* WHEN...From 8 AM Thursday to 8 PM EDT Friday.
* 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.
&&
$$
ANZ232-160815-
/O.CON.KBOX.GL.W.0029.251016T1200Z-251018T0000Z/
Nantucket Sound-
315 PM EDT Wed Oct 15 2025
...GALE WARNING REMAINS IN EFFECT FROM 8 AM THURSDAY TO 8 PM EDT
FRIDAY...
* WHAT...North winds 25 to 35 kt and seas 4 to 6 feet expected.
* WHERE...Nantucket Sound.
* WHEN...From 8 AM Thursday to 8 PM EDT Friday.
* IMPACTS...Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
&&
$$
ANZ250-254-255-160815-
/O.CON.KBOX.GL.W.0029.251016T1200Z-251018T0000Z/
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-
315 PM EDT Wed Oct 15 2025
...GALE WARNING REMAINS IN EFFECT FROM 8 AM THURSDAY TO 8 PM EDT
FRIDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 40 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 8 AM Thursday to 8 PM EDT Friday.
* 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.
&&
$$
ANZ236-160815-
/O.NEW.KBOX.SC.Y.0101.251016T1200Z-251018T0000Z/
Narragansett Bay-
315 PM EDT Wed Oct 15 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THURSDAY TO 8 PM EDT
FRIDAY...
* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and
waves 2 to 3 feet expected.
* WHERE...Narragansett Bay.
* WHEN...From 8 AM Thursday to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ230-160815-
/O.NEW.KBOX.SC.Y.0101.251016T1200Z-251018T0000Z/
Boston Harbor-
315 PM EDT Wed Oct 15 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THURSDAY TO 8 PM EDT
FRIDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and
waves around 2 feet expected.
* WHERE...Boston Harbor.
* WHEN...From 8 AM Thursday to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ235-237-160815-
/O.CON.KBOX.SC.Y.0100.000000T0000Z-251018T0000Z/
Rhode Island Sound-Block Island Sound-
315 PM EDT Wed Oct 15 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
3 to 5 feet.
* WHERE...Rhode Island Sound and Block Island Sound.
* WHEN...Until 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ233-234-160815-
/O.CON.KBOX.SC.Y.0100.251016T1200Z-251018T0000Z/
Vineyard Sound-Buzzards Bay-
315 PM EDT Wed Oct 15 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THURSDAY TO
8 PM EDT FRIDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas
around 3 feet expected.
* WHERE...Vineyard Sound and Buzzards Bay.
* WHEN...From 8 AM Thursday to 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ256-160815-
/O.CON.KBOX.SC.Y.0100.000000T0000Z-251018T0000Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
315 PM EDT Wed Oct 15 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY...
* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas
4 to 7 feet.
* WHERE...Coastal Waters from Montauk NY to Marthas Vineyard
extending out to 20 nm South of Block Island.
* WHEN...Until 8 PM EDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
