Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
816 WHUS71 KBOX 121800 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 200 PM EDT Sun Oct 12 2025 ANZ250-254-130800- /O.EXT.KBOX.GL.W.0028.000000T0000Z-251014T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING NOW IN EFFECT UNTIL 2 AM EDT TUESDAY... * WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 12 to 17 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...Until 2 AM EDT Tuesday. * 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. && $$ ANZ231-130800- /O.EXT.KBOX.GL.W.0028.000000T0000Z-251014T0600Z/ Cape Cod Bay- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING NOW IN EFFECT UNTIL 2 AM EDT TUESDAY... * WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 6 to 9 feet. * WHERE...Cape Cod Bay. * WHEN...Until 2 AM EDT Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ251-130800- /O.EXT.KBOX.GL.W.0028.000000T0000Z-251014T0600Z/ Massachusetts Bay and Ipswich Bay- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING NOW IN EFFECT UNTIL 2 AM EDT TUESDAY... * WHAT...Northeast winds 25 to 35 kt with gusts up to 40 kt and seas 10 to 15 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 2 AM EDT Tuesday. * 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. && $$ ANZ233-234-130800- /O.CON.KBOX.GL.W.0028.000000T0000Z-251014T0000Z/ Vineyard Sound-Buzzards Bay- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT MONDAY... * WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 4 to 7 feet. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...Until 8 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ236-130800- /O.CON.KBOX.GL.W.0028.000000T0000Z-251013T1800Z/ Narragansett Bay- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 2 PM EDT MONDAY... * WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...Until 2 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous waves 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. && $$ ANZ230-130800- /O.CON.KBOX.GL.W.0028.000000T0000Z-251014T0000Z/ Boston Harbor- 200 PM EDT Sun Oct 12 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT MONDAY... * WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and waves 1 to 3 feet expected. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT Monday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ255-256-130800- /O.CON.KBOX.SR.W.0002.000000T0000Z-251013T1200Z/ 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- 200 PM EDT Sun Oct 12 2025 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY... * WHAT...Northeast winds 35 to 45 kt with gusts up to 50 kt and seas 12 to 17 feet expected. * 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 8 AM EDT Monday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ235-237-130800- /O.CON.KBOX.SR.W.0002.000000T0000Z-251013T1200Z/ Rhode Island Sound-Block Island Sound- 200 PM EDT Sun Oct 12 2025 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY... * WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and seas 8 to 13 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 8 AM EDT Monday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232-130800- /O.CON.KBOX.SR.W.0002.000000T0000Z-251013T1200Z/ Nantucket Sound- 200 PM EDT Sun Oct 12 2025 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 AM EDT MONDAY... * WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and seas 7 to 10 feet expected. * WHERE...Nantucket Sound. * WHEN...Until 8 AM EDT Monday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$