Marine Weather Message
Issued by NWS Boston, MA

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WHUS71 KBOX 171750
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
150 PM EDT Mon Aug 17 2026

ANZ233>235-237-180000-
/O.CON.KBOX.SC.Y.0078.000000T0000Z-260818T0000Z/
Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound-
150 PM EDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Southeast winds 10 to 15 kt and seas 2 to 4 feet.

* WHERE...In Massachusetts coastal waters, Vineyard Sound and
  Buzzards Bay. In Rhode Island coastal waters, Rhode Island
  Sound and Block Island Sound.

* WHEN...Until 8 PM EDT 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.

&&

$$

ANZ255-256-180600-
/O.CON.KBOX.SC.Y.0078.000000T0000Z-260818T0600Z/
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-
150 PM EDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...

* WHAT...Southeast winds 5 to 15 kt and seas 3 to 5 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 2 AM EDT 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.

&&

$$

ANZ232-180000-
/O.CON.KBOX.SC.Y.0078.000000T0000Z-260818T0000Z/
Nantucket Sound-
150 PM EDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Southeast winds 10 to 15 kt and seas around 2 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 8 PM EDT 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.

&&

$$

ANZ254-180600-
/O.CON.KBOX.SC.Y.0078.000000T0000Z-260818T0600Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM-
150 PM EDT Mon Aug 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...

* WHAT...Southeast winds 10 to 15 kt and seas 2 to 4 feet.

* WHERE...Coastal waters from Provincetown MA to Chatham MA to
  Nantucket MA out 20 NM.

* WHEN...Until 2 AM EDT 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.

&&

$$