Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
843 WHUS71 KBOX 050150 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 850 PM EST Thu Dec 4 2025 ANZ250-254>256-050900- /O.CON.KBOX.GL.W.0040.000000T0000Z-251205T0900Z/ 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- 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- 850 PM EST Thu Dec 4 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and seas 5 to 8 feet. * WHERE...In Massachusetts coastal waters, 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 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...Until 4 AM EST Friday. * 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. && $$ ANZ231>235-237-251-050900- /O.CON.KBOX.GL.W.0040.000000T0000Z-251205T0900Z/ Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- Rhode Island Sound-Block Island Sound- Massachusetts Bay and Ipswich Bay- 850 PM EST Thu Dec 4 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST FRIDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 5 feet. * WHERE...Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN...Until 4 AM EST Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ230-236-050600- /O.CON.KBOX.GL.W.0040.000000T0000Z-251205T0600Z/ Boston Harbor-Narragansett Bay- 850 PM EST Thu Dec 4 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST FRIDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 3 feet. * WHERE...In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN...Until 1 AM EST Friday. * 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. && $$