This special marine warning is no longer in effect.
It expired
.
It is kept here for reference only — do not rely on it for current conditions.
See alerts in effect now
Special Marine Warning
Expired
Cape Cod Bay; Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Massachusetts Bay and Ipswich Bay; Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM
StatusEndedStarted 30 minutes ago
Endsexpired
Issued
SeveritySevere
UrgencyImmediate
CertaintyLikely
Details
The affected areas were... Cape Cod Bay... 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... Massachusetts Bay and Ipswich Bay...
The thunderstorm has weakened and no longer poses a significant threat to boaters.