Marine Weather Message
Issued by NWS Boston, MA
Issued by NWS Boston, MA
346 WHUS71 KBOX 200803 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 403 AM EDT Sun Apr 20 2025 ANZ230-231-251-201700- /O.NEW.KBOX.SC.Y.0056.250420T1100Z-250420T1700Z/ Boston Harbor-Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 403 AM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas around 3 feet expected. * WHERE...Boston Harbor, Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until 1 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. && $$ ANZ235-237-201700- /O.EXT.KBOX.SC.Y.0055.000000T0000Z-250420T1700Z/ Rhode Island Sound-Block Island Sound- 403 AM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON... * WHAT...Northwest winds around 15 kt with gusts up to 25 kt and seas 4 to 6 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 1 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ254-255-202115- /O.EXT.KBOX.SC.Y.0055.000000T0000Z-250421T0300Z/ 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- 403 AM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and seas 4 to 6 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 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. && $$ ANZ233-201100- /O.CON.KBOX.SC.Y.0055.000000T0000Z-250420T1100Z/ Vineyard Sound- 403 AM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT THIS MORNING... * WHAT...West winds around 15 kt with gusts up to 25 kt and seas around 4 feet. * WHERE...Vineyard Sound. * WHEN...Until 7 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-256-202115- /O.CON.KBOX.SC.Y.0055.000000T0000Z-250420T2300Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 403 AM EDT Sun Apr 20 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and seas 4 to 6 feet. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 7 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. && $$