NWS Boston/Norton MAMA.W 0051September 4, 2026
Special Marine Warning: Block Island Sound, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island and Ocean Waters from Montauk NY to Marthas Vineyard from 25
The National Weather Service office in Boston/Norton issued a special marine warning for Block Island Sound, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM, which was in force until 6:45 a.m. local time on September 4. It was the 51st special marine warning the NWS office in Boston/Norton issued in 2026.
ExpiredWarning
In force for 1.1 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Boston/Norton MA
- Area
- Block Island Sound, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island and Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM
- Level
- Warning
- Issued
- 5:41 a.m. EDT, September 4, 2026
- Expires
- 6:45 a.m. EDT, September 4, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KBOX MA.W 0051
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM... * Until 645 AM EDT. * At 541 AM EDT, a strong thunderstorm was located over Montauk Shoal, moving east at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... The Coastal Waters Southeast Of Block Island, Buoy 44097 Southeast Of Block Island, Block Island Sound, and The Coastal Waters West Of Block Island.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.