Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
449 WHUS71 KBOX 271723 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 123 PM EDT Mon Jul 27 2026 ANZ254>256-281000- /O.NEW.KBOX.SC.Y.0076.260729T0000Z-260730T0000Z/ 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- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 8 PM EDT WEDNESDAY... * WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 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 8 PM Tuesday to 8 PM EDT 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. && $$ ANZ232>235-237-281000- /O.NEW.KBOX.SC.Y.0076.260729T0000Z-260730T0000Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound- Block Island Sound- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 8 PM EDT WEDNESDAY... * WHAT...Southeast winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...From 8 PM Tuesday to 8 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-281000- /O.NEW.KBOX.SC.Y.0076.260729T0000Z-260730T0000Z/ Narragansett Bay- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 8 PM EDT WEDNESDAY... * WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt and waves 2 to 4 feet expected. * WHERE...Narragansett Bay. * WHEN...From 8 PM Tuesday to 8 PM EDT 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. && $$ ANZ231-251-281000- /O.NEW.KBOX.SC.Y.0076.260729T0600Z-260730T0000Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT WEDNESDAY... * WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and seas 2 to 3 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 2 AM to 8 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-281000- /O.NEW.KBOX.SC.Y.0076.260729T0600Z-260730T0000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT WEDNESDAY... * WHAT...East winds 10 to 20 kt with gusts up to 30 kt and seas 3 to 4 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...From 2 AM to 8 PM EDT 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. && $$ ANZ230-281000- /O.NEW.KBOX.SC.Y.0076.260729T0600Z-260730T0000Z/ Boston Harbor- 123 PM EDT Mon Jul 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 8 PM EDT WEDNESDAY... * WHAT...East winds 10 to 20 kt with gusts up to 25 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 2 AM to 8 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$