Alert archive / Massachusetts / Storm Warnings in 2026
Storm Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this storm warning at Feb 21, 2026, 12:37 PM EST. It took effect at Feb 22, 2026, 10:00 PM EST. It was in force for 25 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
- Feb 21, 2026, 12:37 PM EST (17:37 UTC)
- In effect from
- Feb 22, 2026, 10:00 PM EST
- Expired
- Feb 23, 2026, 10:31 PM EST
- In force
- 25 hr
- Issued by
- NWS Boston/Norton, MA
The text
As transmitted.
284 WHUS71 KBOX 211737 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1237 PM EST Sat Feb 21 2026 ANZ230-220645- /O.UPG.KBOX.GL.A.0008.260223T0600Z-260224T0500Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Boston Harbor- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 55 kt and waves 2 to 4 feet expected. * WHERE...Boston Harbor. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves 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. && $$ ANZ254>256-220645- /O.UPG.KBOX.SR.A.0002.260223T0600Z-260224T0400Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 60 kt and seas 16 to 21 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ235-237-220645- /O.UPG.KBOX.SR.A.0002.260223T0800Z-260223T2300Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 55 kt and seas 7 to 12 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * 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. && $$ ANZ232>234-220645- /O.UPG.KBOX.SR.A.0002.260223T1000Z-260224T0100Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 55 kt and seas 7 to 10 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ231-220645- /O.UPG.KBOX.SR.A.0002.260223T1100Z-260224T0200Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Cape Cod Bay- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...Northeast winds 40 to 50 kt with gusts up to 60 kt and seas 10 to 15 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * 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. && $$ ANZ250-251-220645- /O.UPG.KBOX.SR.A.0002.260223T1100Z-260224T0400Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 50 kt with gusts up to 60 kt and seas 18 to 23 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ236-220645- /O.UPG.KBOX.SR.A.0002.260223T1100Z-260223T2300Z/ /O.NEW.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Narragansett Bay- 1237 PM EST Sat Feb 21 2026 ...STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 1 AM EST TUESDAY... * WHAT...North winds 30 to 40 kt with gusts up to 50 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...From 10 PM Sunday to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves 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. && $$
5 follow-up statements
422 WHUS71 KBOX 221007 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 507 AM EST Sun Feb 22 2026 ANZ230-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Boston Harbor- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves 2 to 4 feet expected. * WHERE...Boston Harbor. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ254>256-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 50 kt with gusts up to 65 kt and seas 15 to 20 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * 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. && $$ ANZ235-237-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 60 kt and seas 8 to 13 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232>234-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 60 kt and seas 7 to 10 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * 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. && $$ ANZ231-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Cape Cod Bay- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 50 kt with gusts up to 65 kt and seas 10 to 15 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-251-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 35 to 55 kt with gusts up to 65 kt and seas 19 to 24 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * 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. && $$ ANZ236-222315- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Narragansett Bay- 507 AM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
656 WHUS71 KBOX 222027 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 327 PM EST Sun Feb 22 2026 ANZ230-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Boston Harbor- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves 2 to 4 feet expected. * WHERE...Boston Harbor. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves 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. && $$ ANZ254>256-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 50 kt with gusts up to 65 kt and seas 16 to 21 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ235-237-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 65 kt and seas 8 to 13 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * 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. && $$ ANZ232>234-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 65 kt and seas 7 to 10 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ231-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Cape Cod Bay- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 30 to 50 kt with gusts up to 65 kt and seas 10 to 15 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * 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. && $$ ANZ250-251-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...Northeast winds 35 to 55 kt with gusts up to 65 kt and seas 19 to 24 feet expected. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ236-230930- /O.CON.KBOX.SR.W.0002.260223T0300Z-260224T0600Z/ Narragansett Bay- 327 PM EST Sun Feb 22 2026 ...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves around 3 feet expected. * WHERE...Narragansett Bay. * WHEN...From 10 PM this evening to 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves 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. && $$
869 WHUS71 KBOX 230809 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 309 AM EST Mon Feb 23 2026 ANZ230-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Boston Harbor- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves 2 to 4 feet. * WHERE...Boston Harbor. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ254>256-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 55 kt with gusts up to 70 kt and seas 17 to 22 feet. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ235-237-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 30 to 50 kt with gusts up to 65 kt and seas 8 to 13 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232>234-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 55 kt with gusts up to 65 kt and seas 7 to 10 feet. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ231-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Cape Cod Bay- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 55 kt with gusts up to 70 kt and seas 10 to 15 feet. * WHERE...Cape Cod Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-251-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 55 kt with gusts up to 65 kt and seas 20 to 25 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ236-232115- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Narragansett Bay- 309 AM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 45 kt with gusts up to 60 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous waves will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$
798 WHUS71 KBOX 232143 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 443 PM EST Mon Feb 23 2026 ANZ230-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.NEW.KBOX.GL.W.0010.260223T2143Z-260224T0600Z/ Boston Harbor- 443 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and waves 2 to 3 feet. * WHERE...Boston Harbor. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ233-234-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.NEW.KBOX.GL.W.0010.260223T2143Z-260224T0600Z/ Vineyard Sound-Buzzards Bay- 443 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 30 to 40 kt with gusts up to 45 kt and seas 4 to 7 feet. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ235-237-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.NEW.KBOX.GL.W.0010.260223T2143Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 443 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and seas 7 to 12 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ236-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.NEW.KBOX.GL.W.0010.260223T2143Z-260224T0600Z/ Narragansett Bay- 443 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ256-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.NEW.KBOX.GL.W.0010.260223T2143Z-260224T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 443 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 35 to 45 kt with gusts up to 50 kt and seas 12 to 17 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ254-255-240600- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 443 PM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 40 to 50 kt with gusts up to 60 kt and seas 18 to 23 feet. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ232-240600- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Nantucket Sound- 443 PM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 35 to 45 kt with gusts up to 60 kt and seas 6 to 11 feet. * WHERE...Nantucket Sound. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ231-240600- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Cape Cod Bay- 443 PM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 40 to 50 kt with gusts up to 60 kt and seas 11 to 16 feet. * WHERE...Cape Cod Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Storm force winds and hazardous seas will capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should remain in port, alter course, and/or secure the vessel for severe conditions. && $$ ANZ250-251-240600- /O.CON.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 443 PM EST Mon Feb 23 2026 ...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 40 to 50 kt with gusts up to 60 kt and seas 20 to 25 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 1 AM EST Tuesday. * 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. && $$
685 WHUS71 KBOX 240331 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1031 PM EST Mon Feb 23 2026 ANZ231-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.EXA.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Cape Cod Bay- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and seas 9 to 14 feet. * WHERE...Cape Cod Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ232-240600- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.EXA.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Nantucket Sound- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 1 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 35 kt with gusts up to 40 kt and seas 6 to 9 feet. * WHERE...Nantucket Sound. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ250-251-240900- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.EXB.KBOX.GL.W.0010.000000T0000Z-260224T0900Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 25 to 35 kt with gusts up to 45 kt and seas 16 to 21 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 4 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ254-255-240900- /O.CAN.KBOX.SR.W.0002.000000T0000Z-260224T0600Z/ /O.EXB.KBOX.GL.W.0010.000000T0000Z-260224T0900Z/ 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- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY... ...STORM WARNING IS CANCELLED... * WHAT...Northwest winds 30 to 40 kt with gusts up to 45 kt and seas 15 to 20 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 4 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ230-240600- /O.CON.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Boston Harbor- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and waves 2 to 3 feet. * WHERE...Boston Harbor. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ256-240600- /O.CON.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 25 to 30 kt with gusts up to 35 kt and seas 8 to 12 feet. * WHERE...Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ235-237-240600- /O.CON.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Rhode Island Sound-Block Island Sound- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 20 to 25 kt with gusts up to 35 kt and seas 5 to 8 feet. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ233-234-240600- /O.CON.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Vineyard Sound-Buzzards Bay- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 5 feet. * WHERE...Vineyard Sound and Buzzards Bay. * WHEN...Until 1 AM EST Tuesday. * 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. && $$ ANZ236-240600- /O.CON.KBOX.GL.W.0010.000000T0000Z-260224T0600Z/ Narragansett Bay- 1031 PM EST Mon Feb 23 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 35 kt and waves around 3 feet. * WHERE...Narragansett Bay. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 12:29 PM EST | Blizzard Warning | BOX | Barnstable, Bristol, Dukes, Essex, Hampden, Hampshire and 6 more | 55 hr |
| Feb 21, 12:29 PM EST | Winter Storm Warning | BOX | Essex, Franklin, Hampden, Hampshire, Middlesex, Worcester | 52 hr |
| Feb 21, 12:30 PM EST | High Wind Warning | BOX | Nantucket | 23 hr |
| Feb 21, 2:03 PM EST | Coastal Flood Warning | BOX | Barnstable, Dukes, Nantucket, Norfolk, Plymouth | 41 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.