Marine Weather Message - Issued When Needed Check the date and area (our area is ANZ251)
WHUS71 KBOX 310410
MWWBOX
URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1210 AM EDT Mon Mar 31 2025
ANZ254>256-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T0800Z-250402T0000Z/
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-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EARLY THIS MORNING TO
8 PM EDT TUESDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt, with
isolated gusts of 35 kt possible and seas 5 to 8 feet expected.
* WHERE...In Massachusetts coastal waters, 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. In Rhode Island coastal waters,
Coastal Waters from Montauk NY to Marthas Vineyard extending
out to 20 nm South of Block Island.
* WHEN...From 4 AM early this morning to 8 PM 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.
&&
$$
ANZ232>234-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250401T1200Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 AM
EDT TUESDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt, with
isolated gusts of 35 kt possible and seas 4 to 6 feet expected.
* WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay.
* WHEN...From 8 AM this morning to 8 AM EDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ235-237-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250402T0000Z/
Rhode Island Sound-Block Island Sound-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 PM
EDT TUESDAY...
* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas
4 to 7 feet expected.
* WHERE...Rhode Island Sound and Block Island Sound.
* WHEN...From 8 AM this morning to 8 PM 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.
&&
$$
ANZ236-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250401T1200Z/
Narragansett Bay-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 AM
EDT TUESDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
waves 3 to 5 feet expected.
* WHERE...Narragansett Bay.
* WHEN...From 8 AM this morning to 8 AM EDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ231-251-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250401T1200Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 AM
EDT TUESDAY...
* WHAT...Southwest winds 10 to 20 kt with gusts up to 30 kt and
seas 3 to 5 feet expected.
* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.
* WHEN...From 8 AM this morning to 8 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.
&&
$$
ANZ250-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250402T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 PM
EDT TUESDAY...
* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas
4 to 7 feet expected.
* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen
Bank National Marine Sanctuary.
* WHEN...From 8 AM this morning to 8 PM EDT Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ANZ230-312300-
/O.UPG.KBOX.GL.A.0009.250331T1800Z-250401T0900Z/
/O.NEW.KBOX.SC.Y.0046.250331T1200Z-250401T1200Z/
Boston Harbor-
1210 AM EDT Mon Mar 31 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 8 AM
EDT TUESDAY...
* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt and
waves around 2 feet expected.
* WHERE...Boston Harbor.
* WHEN...From 8 AM this morning to 8 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.
&&
$$
