NWS Boston/Norton MAMA.W 0050September 4, 2026
Special Marine Warning: Rhode Island Sound, 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 Sou
The National Weather Service office in Boston/Norton issued a special marine warning for Rhode Island Sound, 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 and 2 more, which was in force until 6:45 a.m. local time on September 4. It was the 50th 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
- Rhode Island Sound, 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 and 2 more
- Level
- Warning
- Issued
- 5:38 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 0050
- 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... 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... 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... Rhode Island Sound... * Until 645 AM EDT. * At 538 AM EDT, a strong thunderstorm was located 7 nm northwest of Buoy 44097 Southeast Of Block Island, moving southeast at 20 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, The Coastal Waters South Of Marthas Vineyard, and Buoy 44097 Southeast 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.