Alert archive / Massachusetts / Storm Warnings in 2026
Storm Warning 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this storm warning at Jan 31, 2026, 1:01 AM EST. It took effect at Feb 1, 2026, 7:00 AM EST. It was in force for 16 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 31, 2026, 1:01 AM EST (06:01 UTC)
- In effect from
- Feb 1, 2026, 7:00 AM EST
- Expired
- Feb 1, 2026, 11:15 PM EST
- In force
- 16 hr
- Issued by
- NWS Boston/Norton, MA
The text
As transmitted.
866 WHUS71 KBOX 310601 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 101 AM EST Sat Jan 31 2026 ANZ233-234-311915- /O.EXP.KBOX.UP.W.0002.000000T0000Z-260131T0600Z/ /O.NEW.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0600Z/ Vineyard Sound-Buzzards Bay- 101 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 1 AM EST MONDAY... ...HEAVY FREEZING SPRAY WARNING HAS EXPIRED... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 40 kt and seas 4 to 6 feet expected. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 6 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ232-311915- /O.EXP.KBOX.UP.W.0002.000000T0000Z-260131T0600Z/ /O.EXB.KBOX.GL.W.0008.260201T0900Z-260202T0900Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ Nantucket Sound- 101 AM EST Sat Jan 31 2026 ...GALE WARNING IN EFFECT FROM 4 AM SUNDAY TO 4 AM EST MONDAY... ...HEAVY FREEZING SPRAY WARNING HAS EXPIRED... * WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 6 to 9 feet expected. * WHERE...Nantucket Sound. * WHEN...From 4 AM Sunday to 4 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ255-311915- /O.EXP.KBOX.UP.W.0002.000000T0000Z-260131T0600Z/ /O.EXP.KBOX.SC.Y.0016.000000T0000Z-260131T0600Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ /O.NEW.KBOX.SR.W.0001.260201T1200Z-260202T0900Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 101 AM EST Sat Jan 31 2026 ...STORM WARNING IN EFFECT FROM 7 AM SUNDAY TO 4 AM EST MONDAY... ...HEAVY FREEZING SPRAY WARNING HAS EXPIRED... ...SMALL CRAFT ADVISORY HAS EXPIRED... * WHAT...North winds 35 to 45 kt with gusts up to 50 kt and seas 10 to 15 feet expected. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...From 7 AM Sunday to 4 AM EST 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. && $$ ANZ256-311915- /O.EXP.KBOX.SC.Y.0016.000000T0000Z-260131T0600Z/ /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.NEW.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.EXA.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 101 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING IN EFFECT FROM 3 AM SUNDAY TO 1 AM EST MONDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 30 to 40 kt with gusts up to 45 kt and seas 7 to 12 feet expected. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 3 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ250-311915- /O.EXP.KBOX.SC.Y.0016.000000T0000Z-260131T0600Z/ /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ /O.EXB.KBOX.GL.W.0008.260201T1200Z-260202T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 101 AM EST Sat Jan 31 2026 ...GALE WARNING IN EFFECT FROM 7 AM SUNDAY TO 4 AM EST MONDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 11 to 16 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...From 7 AM Sunday to 4 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. && $$ ANZ235-237-311915- /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.NEW.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ Rhode Island Sound-Block Island Sound- 101 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 40 kt and seas 4 to 6 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 3 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ251-311915- /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.NEW.KBOX.UP.Y.0006.260201T0900Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0900Z/ Massachusetts Bay and Ipswich Bay- 101 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY IN EFFECT FROM 4 AM TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 40 kt and seas 6 to 11 feet expected. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...For the Freezing Spray Advisory, from 4 AM to 1 PM EST Sunday. For the Gale Warning, from 6 AM Sunday to 4 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ231-311915- /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.EXB.KBOX.GL.W.0008.260201T0900Z-260202T0900Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ Cape Cod Bay- 101 AM EST Sat Jan 31 2026 ...GALE WARNING IN EFFECT FROM 4 AM SUNDAY TO 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 6 to 11 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 4 AM Sunday to 4 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ254-311915- /O.EXP.KBOX.SC.Y.0016.000000T0000Z-260131T0600Z/ /O.EXP.KBOX.UP.Y.0005.000000T0000Z-260131T0600Z/ /O.UPG.KBOX.SR.A.0001.260201T1200Z-260202T0600Z/ /O.NEW.KBOX.SR.W.0001.260201T1200Z-260202T0900Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 101 AM EST Sat Jan 31 2026 ...STORM WARNING IN EFFECT FROM 7 AM SUNDAY TO 4 AM EST MONDAY... ...SMALL CRAFT ADVISORY HAS EXPIRED... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...North winds 35 to 45 kt with gusts up to 50 kt and seas 13 to 18 feet expected. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...From 7 AM Sunday to 4 AM EST 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. && $$ ANZ236-311915- /O.NEW.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1000Z-260202T0400Z/ Narragansett Bay- 101 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM EST SUNDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 40 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 5 AM to 11 PM EST Sunday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ230-311915- /O.CON.KBOX.GL.W.0008.260201T1200Z-260202T0600Z/ Boston Harbor- 101 AM EST Sat Jan 31 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 7 AM Sunday to 1 AM EST 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. && $$
4 follow-up statements
767 WHUS71 KBOX 311647 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1147 AM EST Sat Jan 31 2026 ANZ232-010600- /O.UPG.KBOX.GL.W.0008.260201T0900Z-260202T0900Z/ /O.EXB.KBOX.SR.W.0001.260201T1200Z-260202T0600Z/ Nantucket Sound- 1147 AM EST Sat Jan 31 2026 ...STORM WARNING IN EFFECT FROM 7 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 5 to 8 feet expected. * WHERE...Nantucket Sound. * WHEN...From 7 AM Sunday to 1 AM EST Monday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ233-234-010600- /O.CON.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0600Z/ Vineyard Sound-Buzzards Bay- 1147 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and seas 4 to 6 feet expected. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 6 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ235-237-010600- /O.CON.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ Rhode Island Sound-Block Island Sound- 1147 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and seas 4 to 6 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 3 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ236-010600- /O.CON.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1000Z-260202T0400Z/ Narragansett Bay- 1147 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 5 AM TO 11 PM EST SUNDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 15 to 25 kt with gusts up to 40 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 5 AM to 11 PM EST Sunday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ256-010600- /O.CON.KBOX.UP.Y.0006.260201T0300Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1147 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 6 to 11 feet expected. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...For the Freezing Spray Advisory, from 10 PM this evening to 1 PM EST Sunday. For the Gale Warning, from 3 AM Sunday to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ251-010600- /O.CON.KBOX.UP.Y.0006.260201T0900Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0900Z/ Massachusetts Bay and Ipswich Bay- 1147 AM EST Sat Jan 31 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 4 AM TO 1 PM EST SUNDAY... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 4 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 7 to 10 feet expected. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...For the Freezing Spray Advisory, from 4 AM to 1 PM EST Sunday. For the Gale Warning, from 6 AM Sunday to 4 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ230-010600- /O.CON.KBOX.GL.W.0008.260201T1200Z-260202T0600Z/ Boston Harbor- 1147 AM EST Sat Jan 31 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM SUNDAY TO 1 AM EST MONDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 7 AM Sunday to 1 AM EST Monday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ231-010600- /O.CON.KBOX.GL.W.0008.260201T0900Z-260202T0900Z/ Cape Cod Bay- 1147 AM EST Sat Jan 31 2026 ...GALE WARNING REMAINS IN EFFECT FROM 4 AM SUNDAY TO 4 AM EST MONDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and seas 6 to 11 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 4 AM Sunday to 4 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. && $$ ANZ250-010600- /O.CON.KBOX.GL.W.0008.260201T1200Z-260202T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1147 AM EST Sat Jan 31 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM SUNDAY TO 4 AM EST MONDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 10 to 15 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...From 7 AM Sunday to 4 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ254-255-010600- /O.CON.KBOX.SR.W.0001.260201T1200Z-260202T0900Z/ 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- 1147 AM EST Sat Jan 31 2026 ...STORM WARNING REMAINS IN EFFECT FROM 7 AM SUNDAY TO 4 AM EST MONDAY... * WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 11 to 16 feet expected. * 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...From 7 AM Sunday to 4 AM EST 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. && $$
121 WHUS71 KBOX 010648 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 148 AM EST Sun Feb 1 2026 ANZ235-237-012300- /O.EXT.KBOX.UP.Y.0006.000000T0000Z-260202T1200Z/ /O.CON.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ Rhode Island Sound-Block Island Sound- 148 AM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY NOW IN EFFECT UNTIL 7 AM EST MONDAY... ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and seas 4 to 6 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Freezing Spray Advisory, until 7 AM EST Monday. For the Gale Warning, until 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ251-012300- /O.CON.KBOX.UP.Y.0006.260201T0900Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0900Z/ Massachusetts Bay and Ipswich Bay- 148 AM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 4 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 7 to 10 feet expected. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...For the Freezing Spray Advisory, until 1 PM EST this afternoon. For the Gale Warning, from 6 AM this morning to 4 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ233-234-012300- /O.EXT.KBOX.UP.Y.0006.000000T0000Z-260202T1500Z/ /O.CON.KBOX.GL.W.0008.260201T1100Z-260202T0600Z/ Vineyard Sound-Buzzards Bay- 148 AM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY NOW IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and seas 4 to 6 feet expected. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...For the Freezing Spray Advisory, until 10 AM EST Monday. For the Gale Warning, from 6 AM this morning to 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ256-012300- /O.CON.KBOX.UP.Y.0006.000000T0000Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T0800Z-260202T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 148 AM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 6 to 11 feet expected. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...For the Freezing Spray Advisory, until 1 PM EST this afternoon. For the Gale Warning, until 1 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ236-012300- /O.CON.KBOX.UP.Y.0006.000000T0000Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.260201T1000Z-260202T0400Z/ Narragansett Bay- 148 AM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON... ...GALE WARNING REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO 11 PM EST THIS EVENING... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. For the Gale Warning, north winds 15 to 25 kt with gusts up to 40 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...For the Freezing Spray Advisory, until 1 PM EST this afternoon. For the Gale Warning, from 5 AM early this morning to 11 PM EST this evening. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ231-012300- /O.CON.KBOX.GL.W.0008.260201T0900Z-260202T0900Z/ /O.NEW.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Cape Cod Bay- 148 AM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 6 to 11 feet expected. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Cape Cod Bay. * WHEN...For the Gale Warning, until 4 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ230-012300- /O.CON.KBOX.GL.W.0008.260201T1200Z-260202T0600Z/ Boston Harbor- 148 AM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM EST MONDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 7 AM this morning to 1 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ250-012300- /O.CON.KBOX.GL.W.0008.260201T1200Z-260202T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 148 AM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 AM EST MONDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 10 to 15 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...From 7 AM this morning to 4 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. && $$ ANZ232-012300- /O.CON.KBOX.SR.W.0001.260201T1200Z-260202T0600Z/ /O.NEW.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Nantucket Sound- 148 AM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Storm Warning, north winds 25 to 35 kt with gusts up to 50 kt and seas 5 to 8 feet expected. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Nantucket Sound. * WHEN...For the Storm Warning, from 7 AM this morning to 1 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ255-012300- /O.CON.KBOX.SR.W.0001.260201T1200Z-260202T0900Z/ /O.NEW.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 148 AM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Storm Warning, north winds 30 to 40 kt with gusts up to 55 kt and seas 9 to 14 feet expected. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...For the Storm Warning, from 7 AM this morning to 4 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ254-012300- /O.CON.KBOX.SR.W.0001.260201T1200Z-260202T0900Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 148 AM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 AM EST MONDAY... * WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 11 to 16 feet expected. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...From 7 AM this morning to 4 AM EST Monday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
820 WHUS71 KBOX 011815 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 115 PM EST Sun Feb 1 2026 ANZ236-020715- /O.EXP.KBOX.UP.Y.0006.000000T0000Z-260201T1800Z/ /O.NEW.KBOX.UP.Y.0008.260201T1815Z-260202T1500Z/ /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0400Z/ Narragansett Bay- 115 PM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING... * WHAT...For the Freezing Spray Advisory, moderate accumulation of freezing spray. For the Gale Warning, north winds 15 to 25 kt with gusts up to 40 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...For the Freezing Spray Advisory, until 10 AM EST Monday. For the Gale Warning, until 11 PM EST this evening. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ251-020715- /O.EXP.KBOX.UP.Y.0006.000000T0000Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ /O.EXA.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Massachusetts Bay and Ipswich Bay- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 40 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...For the Gale Warning, until 4 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ256-020600- /O.EXP.KBOX.UP.Y.0006.000000T0000Z-260201T1800Z/ /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY HAS EXPIRED... * WHAT...North winds 25 to 35 kt with gusts up to 55 kt and seas 7 to 10 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 1 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. && $$ ANZ235-237-020715- /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ /O.CON.KBOX.UP.Y.0006.000000T0000Z-260202T1200Z/ Rhode Island Sound-Block Island Sound- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST MONDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 45 kt and seas 4 to 6 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Gale Warning, until 1 AM EST Monday. For the Freezing Spray Advisory, until 7 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ233-234-020715- /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ /O.CON.KBOX.UP.Y.0006.000000T0000Z-260202T1500Z/ Vineyard Sound-Buzzards Bay- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... * WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts up to 40 kt and seas 3 to 4 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...For the Gale Warning, until 1 AM EST Monday. For the Freezing Spray Advisory, until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. 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. && $$ ANZ231-020715- /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ /O.CON.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Cape Cod Bay- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts up to 45 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Cape Cod Bay. * WHEN...For the Gale Warning, until 4 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ230-020600- /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ Boston Harbor- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... * WHAT...North winds 15 to 25 kt with gusts up to 35 kt and waves around 2 feet. * WHERE...Boston Harbor. * WHEN...Until 1 AM EST 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. && $$ ANZ250-020715- /O.CON.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 115 PM EST Sun Feb 1 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... * WHAT...North winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 12 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until 4 AM EST Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ232-020715- /O.CON.KBOX.SR.W.0001.000000T0000Z-260202T0600Z/ /O.CON.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Nantucket Sound- 115 PM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Storm Warning, north winds 25 to 35 kt with gusts up to 50 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Nantucket Sound. * WHEN...For the Storm Warning, until 1 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ255-020715- /O.CON.KBOX.SR.W.0001.000000T0000Z-260202T0900Z/ /O.CON.KBOX.UP.Y.0007.260202T0300Z-260202T1500Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 115 PM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST MONDAY... * WHAT...For the Storm Warning, north winds 30 to 40 kt with gusts up to 60 kt and seas 7 to 12 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray expected. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...For the Storm Warning, until 4 AM EST Monday. For the Freezing Spray Advisory, from 10 PM this evening to 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ254-020715- /O.CON.KBOX.SR.W.0001.000000T0000Z-260202T0900Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 115 PM EST Sun Feb 1 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 4 AM EST MONDAY... * WHAT...North winds 25 to 35 kt with gusts up to 60 kt and seas 10 to 15 feet. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...Until 4 AM EST 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. && $$
017 WHUS71 KBOX 020415 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1115 PM EST Sun Feb 1 2026 ANZ235-237-021715- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T0000Z/ /O.CON.KBOX.UP.Y.0006.000000T0000Z-260202T1200Z/ Rhode Island Sound-Block Island Sound- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST MONDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...For the Small Craft Advisory, until 7 PM EST Monday. For the Freezing Spray Advisory, until 7 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-021715- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T0000Z/ /O.CON.KBOX.UP.Y.0007.000000T0000Z-260202T1500Z/ Cape Cod Bay- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Cape Cod Bay. * WHEN...For the Small Craft Advisory, until 7 PM EST Monday. For the Freezing Spray Advisory, until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ251-021715- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T0600Z/ /O.CON.KBOX.UP.Y.0007.000000T0000Z-260202T1500Z/ Massachusetts Bay and Ipswich Bay- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...For the Small Craft Advisory, until 1 AM EST Tuesday. For the Freezing Spray Advisory, until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-021715- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0900Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T1200Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 20 to 30 kt and seas 7 to 12 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ256-021715- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T1200Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 15 to 25 kt and seas 6 to 9 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ233-234-021500- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ /O.CON.KBOX.UP.Y.0006.000000T0000Z-260202T1500Z/ Vineyard Sound-Buzzards Bay- 1115 PM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING IS CANCELLED... * WHAT...Moderate accumulation of freezing spray. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...Until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. && $$ ANZ232-021715- /O.CAN.KBOX.SR.W.0001.000000T0000Z-260202T0600Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T0000Z/ /O.CON.KBOX.UP.Y.0007.000000T0000Z-260202T1500Z/ Nantucket Sound- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST MONDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...STORM WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Nantucket Sound. * WHEN...For the Small Craft Advisory, until 7 PM EST Monday. For the Freezing Spray Advisory, until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ255-021715- /O.CAN.KBOX.SR.W.0001.000000T0000Z-260202T0900Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T1200Z/ /O.CON.KBOX.UP.Y.0007.000000T0000Z-260202T1500Z/ Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...STORM WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 12 feet. For the Freezing Spray Advisory, moderate accumulation of freezing spray. * WHERE...Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...For the Small Craft Advisory, until 7 AM EST Tuesday. For the Freezing Spray Advisory, until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-020515- /O.CAN.KBOX.GL.W.0008.000000T0000Z-260202T0600Z/ Boston Harbor- 1115 PM EST Sun Feb 1 2026 ...GALE WARNING IS CANCELLED... $$ ANZ254-021715- /O.CAN.KBOX.SR.W.0001.000000T0000Z-260202T0900Z/ /O.NEW.KBOX.SC.Y.0017.260202T0415Z-260203T1200Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- 1115 PM EST Sun Feb 1 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 20 to 30 kt and seas 10 to 15 feet. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-021500- /O.EXP.KBOX.GL.W.0008.000000T0000Z-260202T0400Z/ /O.CON.KBOX.UP.Y.0008.000000T0000Z-260202T1500Z/ Narragansett Bay- 1115 PM EST Sun Feb 1 2026 ...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST MONDAY... ...GALE WARNING HAS EXPIRED... * WHAT...Moderate accumulation of freezing spray. * WHERE...Narragansett Bay. * WHEN...Until 10 AM EST Monday. * IMPACTS...Operating a vessel in freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Ice accretion on decks and superstructures may result in some loss of stability. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for ice accumulation on their vessel and consider altering plans to avoid or mitigate these hazardous conditions. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. && $$
What forecasters said that day
The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before this storm warning went out at Jan 31, 12:06 AM EST, 55 minutes earlier. Its key messages:
- Frigid temperatures tonight into Saturday morning.
- A powerful ocean storm looks more likely to pass farther offshore of southern New England Sunday into Sunday night. Greatest overall impacts from accumulating snow and strong winds will be across southeast coastal Plymouth county, Cape Cod and the Islands Sunday and Sunday night. Much lighter accumulating snow with lesser overall impact further inland into southeast MA, with little if any impact into the Boston- Providence corridor Sunday.
- Minor to perhaps moderate coastal flooding Sunday into Monday along the eastern Massachusetts coast.
- Dry, chilly start to next week with chances for another round or two of snow in the second half of the week.
Area forecast discussion, Jan 31, 12:06 AM EST, 55 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
1206 AM EST Sat Jan 31 2026
.WHAT HAS CHANGED...
- Cold Weather Advisories have been extended into Friday night
and Saturday morning for hazardous wind chills.
- A winter storm watch continues for Cape Cod and the islands,
with the risk of accumulating snow and strong winds Sunday
confined to this area, from a powerful offshore winter storm.
- The potential for widespread moderate coastal flooding
has decreased due to a more offshore storm track.
- Gale Warnings have been issued for the nearshore waters
including Boston Harbor and Narragansett Bay.
- Dry, chilly start to next week with chances for another round
or two of snow in the second half of the week.
&&
.KEY MESSAGES...
- Frigid temperatures tonight into Saturday morning.
- A powerful ocean storm looks more likely to pass farther
offshore of southern New England Sunday into Sunday night.
Greatest overall impacts from accumulating snow and strong
winds will be across southeast coastal Plymouth county, Cape
Cod and the Islands Sunday and Sunday night. Much lighter
accumulating snow with lesser overall impact further inland
into southeast MA, with little if any impact into the Boston-
Providence corridor Sunday.
- Minor to perhaps moderate coastal flooding Sunday into Monday
along the eastern Massachusetts coast.
- Dry, chilly start to next week with chances for another round
or two of snow in the second half of the week.
&&
.DISCUSSION...
Key Message 1...Frigid temperatures once again tonight into
Saturday morning.
Cold Weather Advisories have been extended into tonight and
Saturday morning, with actual air temps falling to zero to minus
10 across the region! These temps were derived from the NBM and
the colder MOS guidance, given light winds tonight. However, a
sufficient light WNW breeze at 5-10 mph to generate colder wind
chills from minus 10 to minus 15, which meets our extreme cold
advisory criteria. Hence, we extended the cold weather advisory
into tonight/early Sat morning for most of RI/MA/CT. We excluded
the south coast as wind chills there are more in the zero to
minus 5 range. Still very cold, but shy of criteria.
Nonetheless, dangerous cold for anyone outdoors tonight/early
Saturday.
Key Message 2...12z models continue the trend from the
overnight guidance, tracking a powerful vertically stacked low
(sub 970 mb) a fairly good distance southeast of the 40N/70W
benchmark. However, given its very large circulation and precip
shield, combined with ocean effect snow (OES) bands, along with
possible 850-700 mb Fgen snow bands clipping the Cape and
islands, we decided to hold with the winter storm watch for this
region. Sufficient guidance supporting 0.3 to 0.6 inches of qpf
over this area, which includes the 3km NAM, Canadian, Icon, AI
models and some ensemble members. Therefore this supports a risk
of 4-7" across the Cape and Islands, with highest totals over
ACK and the outer Cape given OES enhancement. As we know,
northwest of the mid level Fgen bands, there is strong
subsidence. Thus, a sharp cutoff in accumulating snow northwest
of the Cape Cod canal. Hence, we lowered snow totals over
southeast MA to 1-2", up to 3" southeast coastal Plymouth county
give OES. Then an inch or less in the Boston-Providence
corridor, with a shutout westward into CT/western-central MA.
Snow will advance south to north early Sunday morning and
continuing through the day and into Sunday night.
Regarding winds, despite the low tracking well southeast of the
40N/70W benchmark, the sub 970 mb low and its low level NNE jet
will scrap Cape Cod and the islands with 50-55 kt at 925 mb
Sunday afternoon. Model soundings indicate NNE winds gusting up
to 45 kt/50 mph are possible across the Cape and islands, with
less wind northwest of the canal, with diminishing wind field
aloft combined with a more northerly wind trajectory there.
These wind speeds are covered in the winter storm watch.
Key Message 3...Minor to perhaps moderate coastal flooding
Sunday into Monday along the eastern Massachusetts coast.
The potential for moderate coastal flooding continues to
decrease as guidance continues to take this system furthur
offshore, but areas of moderate flooding should be limited to
locations south of Boston, especially on Cape Cod (Bay side),
Martha's Vineyard, and Nantucket, and is more likely during the
Sunday evening and midday Monday high tides.
Ensemble guidance still shows large ranges in possible water
levels for Nantucket and Dennis, which is tied to uncertainty in
storm track and timing of the highest surge. Farther north,
these forecast ranges are much smaller which indicates higher
confidence in minor flooding impacts from Boston to the
Merrimack River.
Since we still have a good amount of uncertainty, we decided to
maintain the Coastal Flood Watch. If the storm trends even
farther offshore, water levels and impacts would be lower than
currently forecast, and would likely result in minor impacts for
much of the coastline. Additionally, the timing of the highest
surge appears to be near low tide Sunday afternoon, but if it is
delayed (or arrives sooner) it would coincide closer to high
tide and would lead to higher water levels and greater impacts,
although a reasonable high- end scenario would still be within
the moderate flood category.
As a reminder:
Minor flooding refers to shallow flooding up to 1 foot deep and
can result in temporary road closures on more vulnerable
coastal roads.
Moderate flooding refers to flooding 1 to 3 feet deep and can
cause more widespread road closures, damage to shorefront
property, and debris on coastal roads from large waves. Vehicles
left in flood prone areas can also be flooded.
KEY MESSAGE 4...Dry, chilly start to next week with chances for
another round or two of snow in the second half of the week.
As this weekend's storm wraps up Sunday night and moves out
Monday, high pressure begins to build in over the Great Lakes
and southern Ontario. This will bring a drying out period to
southern New England for the start of next week along with
easing winds as the pressure gradient relaxes. Afternoon highs
Monday and Tuesday are likely to hover right around 32F,
allowing for a little bit of melting of snow. However, given the
clear skies and light winds, temperatures plummet overnight and
range from single digits to mid teens across southern New
England, refreezing any snowmelt and creating slick spots on
untreated surfaces.
Leading into the second half of next week, we're starting to
keep an eye on a couple of systems with possible impacts to
southern New England. The first is a coastal low developing
somewhere off the coast of NC/SC and moving northeast, possibly
bringing a quick round of snow showers to the region
Thursday/Friday. The second is a low sweeping out of the
Canadian Rockies and across the Great Lakes late Friday into
Saturday, possibly bringing gusty winds, colder temperatures,
and another round of snow. Model guidance shows a large amount
of uncertainty given these events are still 6-7 days away, but
something to be aware of over the next week or so.
&&
.AVIATION /06Z SATURDAY THROUGH WEDNESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06z update...
Through Saturday...High confidence.
VFR. Light WNW winds under 10 knots today
Saturday night...moderate confidence.
VFR and dry weather, but MVFR/VFR cigs arrive toward morning in
eastern MA.
Sunday/Sun night...moderate confidence.
Periods of light snow/flurries this period with a combination
of MVFR/VFR conditions. North winds 15-25 kt Sunday, become NNW
Sun night.
KBOS Terminal...High Confidence in TAF thru Saturday.
Light WNW winds today around 10 knots
KBDL Terminal...High Confidence in TAF through Saturday.
VFR. Light WNW winds today under 10 knots.
Outlook /Sunday Night through Wednesday/...
Sunday: Mainly VFR, with local MVFR possible. Strong winds with
gusts up to 45 kt. Chance SN.
Sunday Night: VFR. Strong winds with areas of gusts up to
45 kt. Slight chance SN.
Monday through Monday Night: VFR. Breezy.
Tuesday through Tuesday Night: VFR.
Wednesday: VFR. Slight chance SN.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Diminishing winds and seas today as high pressure builds in.
A powerful ocean storm which tracks well south and east of the
waters on Sunday. Potential for high end gales to low end storm
force NE gusts to 40-50 kt over the waters starting Sunday
morning. Seas expected to build to 15-20 ft on the waters east
of Cape Cod resulting in dangerous conditions for mariners. In
additions, areas of light to moderate freezing spray will
develop Sat night/Sun morning and again Sun night.
Outlook /Sunday Night through Wednesday/...
Monday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Rough seas up to 16 ft. Freezing spray likely.
Monday Night: Winds less than 25 kt. Areas of rough seas.
Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Tuesday Night: Winds less than 25 kt. Seas locally approaching
5 ft.
Wednesday: Winds less than 25 kt. Slight chance of snow.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Cold Weather Advisory until 10 AM EST Saturday for CTZ002>004.
MA...Cold Weather Advisory until 10 AM EST Saturday for MAZ002>019-
026.
Coastal Flood Watch from Sunday morning through Monday
afternoon for MAZ007-015-016-019-022>024.
Winter Weather Advisory from 4 AM Sunday to 4 AM EST Monday
for MAZ019-022>024.
RI...Cold Weather Advisory until 10 AM EST Saturday for RIZ001>004.
MARINE...Gale Warning from 7 AM Sunday to 1 AM EST Monday for ANZ230.
Freezing Spray Advisory until 1 AM EST Saturday for ANZ231-235-
237-250-251-254-256.
Gale Warning from 4 AM Sunday to 4 AM EST Monday for ANZ231-
232.
Heavy Freezing Spray Warning until 1 AM EST Saturday for
ANZ232>234-255.
Freezing Spray Advisory from 4 AM to 1 PM EST Sunday for
ANZ233>237-251-256.
Gale Warning from 6 AM Sunday to 1 AM EST Monday for ANZ233-
234.
Gale Warning from 3 AM Sunday to 1 AM EST Monday for ANZ235-
237.
Gale Warning from 5 AM to 11 PM EST Sunday for ANZ236.
Small Craft Advisory until 1 AM EST Saturday for ANZ250-
254>256.
Gale Warning from 7 AM Sunday to 4 AM EST Monday for ANZ250.
Gale Warning from 6 AM Sunday to 4 AM EST Monday for ANZ251.
Storm Warning from 7 AM Sunday to 4 AM EST Monday for ANZ254-
255.
Gale Warning from 4 AM Sunday to 1 AM EST Monday for ANZ256.
&&
DISCUSSION...McMinn/KP/JWD/Nocera
AVIATION...KP
MARINE...KPThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 30, 11:35 PM EST | Winter Weather Advisory | BOX | Barnstable, Dukes, Nantucket, Norfolk, Plymouth | 37 hr |
| Jan 31, 12:47 AM EST | Coastal Flood Advisory | BOX | Barnstable, Dukes, Essex, Nantucket, Norfolk, Plymouth and 1 more | 61 hr |
| Jan 31, 1:01 AM EST | Heavy Freezing Spray Advisory | BOX | 56 hr | |
| Jan 31, 12:03 PM EST | Wind Advisory | BOX | Barnstable, Dukes, Nantucket | 31 hr |
| Jan 31, 12:19 PM EST | Cold Weather Advisory | BOX | Franklin, Hampden, Hampshire | 22 hr |
| Jan 31, 1:01 PM EST | Coastal Flood Warning | BOX | Nantucket | 24 hr |
Nearby
Storm Warnings in Massachusetts, 2026Every storm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.