Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
095 WHUS71 KBOX 040536 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1236 AM EST Thu Dec 4 2025 ANZ230-236-042100- /O.UPG.KBOX.GL.A.0024.251204T1800Z-251205T0600Z/ /O.EXB.KBOX.GL.W.0040.251204T2100Z-251205T0600Z/ Boston Harbor-Narragansett Bay- 1236 AM EST Thu Dec 4 2025 ...GALE WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EST FRIDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and waves 1 to 3 feet expected. * WHERE...In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN...From 4 PM this afternoon to 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. && $$ ANZ250-254>256-042100- /O.CON.KBOX.GL.W.0040.251204T1800Z-251205T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1236 AM EST Thu Dec 4 2025 ...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM EST FRIDAY... * WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and seas 5 to 8 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 1 PM this afternoon to 4 AM EST Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ231>235-237-251-042100- /O.CON.KBOX.GL.W.0040.251204T1800Z-251205T0900Z/ Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- Rhode Island Sound-Block Island Sound- Massachusetts Bay and Ipswich Bay- 1236 AM EST Thu Dec 4 2025 ...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 4 AM EST FRIDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and seas 3 to 5 feet expected. * WHERE...Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN...From 1 PM this afternoon to 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. && $$