Alert archive / Massachusetts / Storm Warnings in 2026
Storm Warning 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this storm warning at May 29, 2026, 2:06 PM EDT. It took effect at May 30, 2026, 2:00 AM EDT. It was in force for 18 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
- May 29, 2026, 2:06 PM EDT (18:06 UTC)
- In effect from
- May 30, 2026, 2:00 AM EDT
- Expired
- May 30, 2026, 8:00 PM EDT
- In force
- 18 hr
- Issued by
- NWS Boston/Norton, MA
The text
As transmitted.
012 WHUS71 KBOX 291806 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 206 PM EDT Fri May 29 2026 ANZ232>235-237-300715- /O.UPG.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ /O.NEW.KBOX.SR.W.0004.260530T0600Z-260531T0000Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound- Block Island Sound- 206 PM EDT Fri May 29 2026 ...STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and seas 3 to 5 feet expected. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...From 2 AM to 8 PM EDT Saturday. * 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. && $$ ANZ231-251-300715- /O.UPG.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ /O.NEW.KBOX.SR.W.0004.260530T0600Z-260531T0000Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 206 PM EDT Fri May 29 2026 ...STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 6 to 9 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 2 AM to 8 PM EDT Saturday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-254-300715- /O.UPG.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ /O.NEW.KBOX.SR.W.0004.260530T0600Z-260531T0000Z/ 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- 206 PM EDT Fri May 29 2026 ...STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 7 to 12 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 2 AM to 8 PM EDT Saturday. * 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. && $$ ANZ255-256-300715- /O.UPG.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ /O.NEW.KBOX.SR.W.0004.260530T0600Z-260531T0000Z/ Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 206 PM EDT Fri May 29 2026 ...STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...Northwest winds 25 to 35 kt with gusts up to 50 kt and seas 5 to 8 feet expected. * WHERE...In Massachusetts coastal waters, Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...From 2 AM to 8 PM EDT Saturday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ280>283-300715- /O.UPG.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ /O.NEW.KBOX.SR.W.0004.260530T0600Z-260531T0000Z/ Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 206 PM EDT Fri May 29 2026 ...STORM WARNING IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 feet expected. * WHERE...Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM, Ocean Waters from Provincetown to Nantucket from 20 to 60 NM, Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM. * WHEN...From 2 AM to 8 PM EDT Saturday. * 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. && $$ ANZ230-300715- /O.CON.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ Boston Harbor- 206 PM EDT Fri May 29 2026 ...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 2 to 3 feet expected. * WHERE...Boston Harbor. * WHEN...From 2 AM to 8 PM EDT Saturday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ236-300715- /O.CON.KBOX.GL.W.0017.260530T0600Z-260531T0000Z/ Narragansett Bay- 206 PM EDT Fri May 29 2026 ...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 PM EDT SATURDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 45 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...From 2 AM to 8 PM EDT Saturday. * 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. && $$
4 follow-up statements
841 WHUS71 KBOX 300645 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 245 AM EDT Sat May 30 2026 ANZ230-301945- /O.CON.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Boston Harbor- 245 AM EDT Sat May 30 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and waves 2 to 3 feet. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ236-301945- /O.CON.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Narragansett Bay- 245 AM EDT Sat May 30 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 20 to 30 kt with gusts up to 45 kt and waves 1 to 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ232>235-237-301945- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound- Block Island Sound- 245 AM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 25 to 35 kt with gusts up to 50 kt and seas 4 to 6 feet. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ231-251-301945- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 245 AM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 7 to 10 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ250-254-301945- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 245 AM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ255-256-301945- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 245 AM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northwest winds 30 to 40 kt with gusts up to 50 kt and seas 5 to 8 feet. * WHERE...In Massachusetts coastal waters, Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ280>283-301945- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 245 AM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 feet. * WHERE...Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM, Ocean Waters from Provincetown to Nantucket from 20 to 60 NM, Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
702 WHUS71 KBOX 301754 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 154 PM EDT Sat May 30 2026 ANZ230-310000- /O.CON.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Boston Harbor- 154 PM EDT Sat May 30 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and waves 2 to 4 feet. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ236-310000- /O.CON.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Narragansett Bay- 154 PM EDT Sat May 30 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 20 to 30 kt with gusts up to 45 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ232>235-237-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound- Block Island Sound- 154 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 4 to 6 feet. * WHERE...In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ231-251-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 154 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 25 to 35 kt with gusts up to 50 kt and seas 6 to 9 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-254-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ 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- 154 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 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 8 PM EDT this evening. * 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. && $$ ANZ255-256-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 154 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 5 to 8 feet. * WHERE...In Massachusetts coastal waters, Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ280>283-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 154 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...North winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 feet. * WHERE...Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM, Ocean Waters from Provincetown to Nantucket from 20 to 60 NM, Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM. * WHEN...Until 8 PM EDT this evening. * 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. && $$
804 WHUS71 KBOX 302053 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 453 PM EDT Sat May 30 2026 ANZ231>234-310000- /O.CAN.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.EXA.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay- 453 PM EDT Sat May 30 2026 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and seas 4 to 6 feet. * WHERE...Cape Cod Bay, Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ235-237-310000- /O.CAN.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.EXA.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Rhode Island Sound-Block Island Sound- 453 PM EDT Sat May 30 2026 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 4 to 6 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ250-251-310000- /O.CAN.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.EXA.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 453 PM EDT Sat May 30 2026 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...Northeast winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 12 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ256-310000- /O.CAN.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.EXA.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 453 PM EDT Sat May 30 2026 ...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...STORM WARNING IS CANCELLED... * WHAT...North winds 30 to 35 kt with gusts up to 45 kt and seas 6 to 8 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ236-310000- /O.CAN.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ /O.NEW.KBOX.SC.Y.0059.260530T2053Z-260531T0000Z/ Narragansett Bay- 453 PM EDT Sat May 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...North winds 20 to 30 kt with gusts up to 30 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-310000- /O.CON.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Boston Harbor- 453 PM EDT Sat May 30 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 15 to 25 kt with gusts up to 35 kt and waves 2 to 4 feet. * WHERE...Boston Harbor. * WHEN...Until 8 PM EDT this evening. * 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. && $$ ANZ254-255-280>283-310000- /O.CON.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 453 PM EDT Sat May 30 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Northeast winds 25 to 35 kt with gusts up to 50 kt and seas 8 to 13 feet. * WHERE...Portions of Atlantic coastal waters and Massachusetts coastal waters. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
191 WHUS71 KBOX 310002 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 802 PM EDT Sat May 30 2026 ANZ281>283-310300- /O.EXP.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.NEW.KBOX.GL.W.0018.260531T0002Z-260531T0300Z/ Ocean Waters from Provincetown to Nantucket from 20 to 60 NM- Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM- Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM- 802 PM EDT Sat May 30 2026 ...GALE WARNING IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...STORM WARNING HAS EXPIRED... * WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 9 to 14 feet. * WHERE...Ocean Waters from Provincetown to Nantucket from 20 to 60 NM, Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM. * WHEN...Until 11 PM EDT this evening. * 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. && $$ ANZ231-232-250-251-256-311315- /O.EXP.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ /O.NEW.KBOX.SC.Y.0060.260531T0002Z-260531T1600Z/ Cape Cod Bay-Nantucket Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 802 PM EDT Sat May 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT SUNDAY... ...GALE WARNING HAS EXPIRED... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 7 to 10 feet. * WHERE...In Massachusetts coastal waters, Cape Cod Bay, Nantucket Sound, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until noon EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ233>235-237-310300- /O.EXP.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ /O.NEW.KBOX.SC.Y.0060.260531T0002Z-260531T0300Z/ Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound- 802 PM EDT Sat May 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...GALE WARNING HAS EXPIRED... * WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-310115- /O.EXP.KBOX.GL.W.0017.000000T0000Z-260531T0000Z/ Boston Harbor- 802 PM EDT Sat May 30 2026 ...GALE WARNING HAS EXPIRED... The low pressure system has moved offshore, and winds have fallen below Gale Warning criteria. $$ ANZ254-255-311315- /O.EXP.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ /O.NEW.KBOX.SC.Y.0060.260531T0002Z-260531T1600Z/ 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- 802 PM EDT Sat May 30 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT SUNDAY... ...STORM WARNING HAS EXPIRED... * WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 6 to 11 feet. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. * WHEN...Until noon EDT 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. && $$ ANZ280-310115- /O.EXP.KBOX.SR.W.0004.000000T0000Z-260531T0000Z/ Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM- 802 PM EDT Sat May 30 2026 ...STORM WARNING HAS EXPIRED... The low pressure system has moved further out to sea, and winds have fallen below Storm Warning criteria. $$ ANZ236-310115- /O.EXP.KBOX.SC.Y.0059.000000T0000Z-260531T0000Z/ Narragansett Bay- 802 PM EDT Sat May 30 2026 ...SMALL CRAFT ADVISORY HAS EXPIRED... The low pressure system has moved offshore, and winds have fallen below Small Craft Advisory criteria. $$
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 3:59 AM EDT | Wind Advisory | BOX | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 4 more | 40 hr |
| May 29, 2:02 PM EDT | High Wind Warning | BOX | Barnstable, Nantucket | 30 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.