


Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
585 WHUS71 KBOX 221803 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 203 PM EDT Fri Aug 22 2025 ANZ254-255-230900- /O.CAN.KBOX.GL.W.0026.000000T0000Z-250823T0000Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250825T0000Z/ 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- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...South winds 10 to 20 kt with gusts up to 30 kt and seas 8 to 13 feet. * WHERE...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...Until 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232-230900- /O.CAN.KBOX.GL.W.0026.000000T0000Z-250823T0000Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250823T2300Z/ Nantucket Sound- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...Southwest winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet. * WHERE...Nantucket Sound. * WHEN...Until 7 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-230500- /O.CAN.KBOX.GL.W.0026.000000T0000Z-250823T0000Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250823T0500Z/ Cape Cod Bay- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...East winds 5 to 15 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...Cape Cod Bay. * WHEN...Until 1 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-230900- /O.CAN.KBOX.GL.W.0026.000000T0000Z-250823T0000Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250825T0000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...South winds 10 to 20 kt with gusts up to 30 kt and seas 6 to 11 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ233-235-237-230900- /O.EXP.KBOX.GL.W.0026.000000T0000Z-250822T1800Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250823T1100Z/ Vineyard Sound-Rhode Island Sound-Block Island Sound- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EDT SATURDAY... ...GALE WARNING HAS EXPIRED... * WHAT...South winds 5 to 15 kt and seas 4 to 7 feet. * WHERE...In Massachusetts coastal waters, Vineyard Sound. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...Until 7 AM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ256-230900- /O.EXP.KBOX.GL.W.0026.000000T0000Z-250822T1800Z/ /O.EXB.KBOX.SC.Y.0086.000000T0000Z-250825T0000Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT SUNDAY... ...GALE WARNING HAS EXPIRED... * WHAT...South winds 5 to 15 kt and seas 7 to 10 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 8 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ234-221915- /O.EXP.KBOX.GL.W.0026.000000T0000Z-250822T1800Z/ Buzzards Bay- 203 PM EDT Fri Aug 22 2025 ...GALE WARNING HAS EXPIRED... Winds have diminished less than 25 kt with seas less than 5 feet. $$ ANZ230-236-221915- /O.EXP.KBOX.SC.Y.0086.000000T0000Z-250822T1800Z/ Boston Harbor-Narragansett Bay- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY HAS EXPIRED... Winds have diminished less than 25 kt with seas less than 5 feet. $$ ANZ251-230900- /O.EXT.KBOX.SC.Y.0086.000000T0000Z-250824T1100Z/ Massachusetts Bay and Ipswich Bay- 203 PM EDT Fri Aug 22 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM EDT SUNDAY... * WHAT...South winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 7 AM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$