Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
095 WHUS71 KBOX 170856 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 456 AM EDT Fri Oct 17 2025 ANZ250-172200- /O.CAN.KBOX.GL.W.0029.000000T0000Z-251017T1200Z/ /O.EXB.KBOX.SC.Y.0100.000000T0000Z-251019T0000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 6 to 9 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until 8 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. && $$ ANZ251-172200- /O.CAN.KBOX.GL.W.0029.000000T0000Z-251017T0900Z/ /O.EXB.KBOX.SC.Y.0100.000000T0000Z-251019T0000Z/ Massachusetts Bay and Ipswich Bay- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT SATURDAY... ...GALE WARNING IS CANCELLED... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-172200- /O.CAN.KBOX.GL.W.0029.000000T0000Z-251017T0900Z/ /O.EXA.KBOX.SC.Y.0100.000000T0000Z-251018T0000Z/ Cape Cod Bay- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet. * WHERE...Cape Cod Bay. * 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. && $$ ANZ232-172200- /O.CAN.KBOX.GL.W.0029.000000T0000Z-251017T1200Z/ /O.EXA.KBOX.SC.Y.0100.000000T0000Z-251018T0000Z/ Nantucket Sound- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE...Nantucket Sound. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ254-255-171500- /O.CON.KBOX.GL.W.0029.000000T0000Z-251017T1500Z/ 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- 456 AM EDT Fri Oct 17 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... * WHAT...North winds 20 to 25 kt with gusts up to 30 kt and seas 7 to 10 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 11 AM EDT this morning. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ235-237-171800- /O.EXT.KBOX.SC.Y.0100.000000T0000Z-251017T1800Z/ Rhode Island Sound-Block Island Sound- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 4 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ233-234-171800- /O.EXT.KBOX.SC.Y.0100.000000T0000Z-251017T1800Z/ Vineyard Sound-Buzzards Bay- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...North winds 15 to 20 kt with gusts up to 25 kt and seas around 3 feet. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...Until 2 PM EDT 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. && $$ ANZ236-171800- /O.CON.KBOX.SC.Y.0101.000000T0000Z-251017T1800Z/ Narragansett Bay- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...North winds 10 to 15 kt with gusts up to 25 kt and waves around 2 feet. * WHERE...Narragansett Bay. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-171800- /O.CON.KBOX.SC.Y.0101.000000T0000Z-251017T1800Z/ Boston Harbor- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...North winds 10 to 15 kt with gusts up to 25 kt and waves around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 2 PM EDT 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. && $$ ANZ256-172200- /O.CON.KBOX.SC.Y.0100.000000T0000Z-251018T0000Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 456 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 15 to 25 kt and seas 4 to 7 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$