131
WHUS71 KBOX 180500
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1200 AM EST Tue Nov 18 2025

ANZ250-254-181800-
/O.CAN.KBOX.GL.W.0036.000000T0000Z-251118T0600Z/
/O.EXB.KBOX.SC.Y.0117.000000T0000Z-251119T0000Z/
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-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IS CANCELLED...

* WHAT...West 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 and Coastal waters from
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...Until 7 PM EST 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.

&&

$$

ANZ255-256-181800-
/O.CAN.KBOX.GL.W.0036.000000T0000Z-251118T0600Z/
/O.EXB.KBOX.SC.Y.0117.000000T0000Z-251119T0000Z/
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-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 20 to 30 kt and seas 4 to 7 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 EST 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.

&&

$$

ANZ230-236-181200-
/O.EXT.KBOX.SC.Y.0117.000000T0000Z-251118T1200Z/
Boston Harbor-Narragansett Bay-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...West winds 15 to 20 kt with gusts up to 25 kt and waves
  1 to 3 feet.

* WHERE...In Massachusetts coastal waters, Boston Harbor. In
  Rhode Island coastal waters, Narragansett Bay.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ231-251-181200-
/O.CON.KBOX.SC.Y.0117.000000T0000Z-251118T1200Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...West winds 20 to 25 kt and seas around 3 feet.

* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ235-237-181800-
/O.CON.KBOX.SC.Y.0117.000000T0000Z-251118T1800Z/
Rhode Island Sound-Block Island Sound-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...West winds 15 to 25 kt and seas 3 to 5 feet.

* WHERE...Rhode Island Sound and Block Island Sound.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ232-181800-
/O.CON.KBOX.SC.Y.0117.000000T0000Z-251118T1800Z/
Nantucket Sound-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas
  3 to 4 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ233-234-181200-
/O.CON.KBOX.SC.Y.0117.000000T0000Z-251118T1200Z/
Vineyard Sound-Buzzards Bay-
1200 AM EST Tue Nov 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...West winds 15 to 25 kt and seas around 3 feet.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...Until 7 AM EST this morning.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$