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Home Return to list Gale Watch 0028 Issued by the Boston Forecast Office
Action: New Issued At: 2025-12-20 04:46:36 579 WHUS71 KBOX 201046 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 546 AM EST Sat Dec 20 2025 ANZ256-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ /O.NEW.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 9 to 14 feet. For the Gale Watch, southwest winds 20 to 30 kt with gusts up to 35 kt and seas 7 to 10 feet possible. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...For the Small Craft Advisory, until 1 AM EST Sunday. For the Gale Watch, from late tonight through Sunday morning. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ ANZ235-237-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ /O.NEW.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/ Rhode Island Sound-Block Island Sound- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 feet. For the Gale Watch, southwest winds 20 to 25 kt with gusts up to 35 kt and seas 5 to 8 feet possible. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Small Craft Advisory, until 1 AM EST Sunday. For the Gale Watch, from late tonight through Sunday morning. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ ANZ232>234-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T1200Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 feet. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...Until 7 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T1200Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY... * WHAT...Southwest winds 20 to 30 kt with gusts up to 35 kt and seas 4 to 6 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until 7 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ255-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... * WHAT...West winds 20 to 30 kt and seas 10 to 15 feet. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 1 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-201500- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1200Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251220T1500Z/ Boston Harbor- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 10 AM EST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-254-201400- /O.CON.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ 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- 546 AM EST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...West winds 20 to 30 kt with gusts up to 35 kt and seas 7 to 12 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 9 AM EST 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. && $$ ANZ236-201500- /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251220T1500Z/ Narragansett Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 10 AM EST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: New Issued At: 2025-12-20 04:46:36 579 WHUS71 KBOX 201046 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 546 AM EST Sat Dec 20 2025 ANZ256-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ /O.NEW.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 9 to 14 feet. For the Gale Watch, southwest winds 20 to 30 kt with gusts up to 35 kt and seas 7 to 10 feet possible. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...For the Small Craft Advisory, until 1 AM EST Sunday. For the Gale Watch, from late tonight through Sunday morning. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ ANZ235-237-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ /O.NEW.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/ Rhode Island Sound-Block Island Sound- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... ...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY MORNING... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 feet. For the Gale Watch, southwest winds 20 to 25 kt with gusts up to 35 kt and seas 5 to 8 feet possible. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Small Craft Advisory, until 1 AM EST Sunday. For the Gale Watch, from late tonight through Sunday morning. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should consider altering plans to avoid possible hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe wind and seas. && $$ ANZ232>234-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T1200Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 feet. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...Until 7 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T1200Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST SUNDAY... * WHAT...Southwest winds 20 to 30 kt with gusts up to 35 kt and seas 4 to 6 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until 7 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ255-210000- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251221T0600Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST SUNDAY... * WHAT...West winds 20 to 30 kt and seas 10 to 15 feet. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 1 AM EST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-201500- /O.CAN.KBOX.GL.W.0045.000000T0000Z-251220T1200Z/ /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251220T1500Z/ Boston Harbor- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 10 AM EST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-254-201400- /O.CON.KBOX.GL.W.0045.000000T0000Z-251220T1400Z/ 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- 546 AM EST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING... * WHAT...West winds 20 to 30 kt with gusts up to 35 kt and seas 7 to 12 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 9 AM EST 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. && $$ ANZ236-201500- /O.NEW.KBOX.SC.Y.0131.251220T1046Z-251220T1500Z/ Narragansett Bay- 546 AM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...West winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 10 AM EST this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Upgraded Issued At: 2025-12-20 12:45:50 357 WHUS71 KBOX 201845 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 145 PM EST Sat Dec 20 2025 ANZ235-237-256-211000- /O.CAN.KBOX.SC.Y.0131.000000T0000Z-251221T0600Z/ /O.UPG.KBOX.GL.A.0028.251221T0600Z-251221T1400Z/ /O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/ Rhode Island Sound-Block Island Sound- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 145 PM EST Sat Dec 20 2025 ...GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY... * WHAT...West winds 25 to 35 kt with gusts up to 40 kt and seas 6 to 9 feet expected. * WHERE...Rhode Island Sound, Block Island Sound and Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 1 AM Sunday to 7 AM EST 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. && $$ ANZ255-211000- /O.CAN.KBOX.SC.Y.0131.000000T0000Z-251221T0600Z/ /O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 145 PM EST Sat Dec 20 2025 ...GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY... ...SMALL CRAFT ADVISORY IS CANCELLED... * WHAT...West winds 25 to 35 kt with gusts up to 40 kt and seas 6 to 9 feet expected. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...From 1 AM Sunday to 7 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ231>234-251-211000- /O.UPG.KBOX.SC.Y.0131.000000T0000Z-251221T1200Z/ /O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/ Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- Massachusetts Bay and Ipswich Bay- 145 PM EST Sat Dec 20 2025 ...GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY... * WHAT...West winds 20 to 30 kt with gusts up to 40 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay, Nantucket Sound, Vineyard Sound, Buzzards Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 1 AM Sunday to 7 AM EST 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. && $$ ANZ250-254-211000- /O.NEW.KBOX.GL.W.0046.251221T0600Z-251222T1200Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 145 PM EST Sat Dec 20 2025 ...GALE WARNING IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY... * WHAT...West winds 20 to 30 kt with gusts up to 40 kt and seas 4 to 7 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...From 1 AM Sunday to 7 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ230-236-211000- /O.NEW.KBOX.SC.Y.0132.251221T0600Z-251222T1200Z/ Boston Harbor-Narragansett Bay- 145 PM EST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM SUNDAY TO 7 AM EST MONDAY... * WHAT...West winds 15 to 25 kt with gusts up to 40 kt and waves 2 to 4 feet expected. * WHERE...In Massachusetts coastal waters, Boston Harbor. In Rhode Island coastal waters, Narragansett Bay. * WHEN...From 1 AM Sunday to 7 AM EST Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||