Weather Alert WatchOfficial-source alert index
NWS feedSource freshLast successful check:
Ended official alertUpdated

Special Marine Warning for Boston Harbor; Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Massachusetts Bay and Ipswich Bay

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Boston Harbor... Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary... Massachusetts Bay and Ipswich Bay... * Until 530 PM EDT. * At 427 PM EDT, a strong thunderstorm was located over...

What the bulletin says to do

Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.

Read official NWS bulletin

Full official description

Bulletin details

SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Boston Harbor... Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary... Massachusetts Bay and Ipswich Bay... * Until 530 PM EDT. * At 427 PM EDT, a strong thunderstorm was located over Boston Harbor, 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... Eastern Point Ma, Boston Harbor, Beverly Harbor, Boston Buoy 44013, Boston Light, Mass Bay Buoy 44029, Thatcher Island, Marblehead Neck, Broad Sound, Quincy Harbor, The Coastal Waters East Of Boston Harbor, and Minot Light.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued July 22 at 4:27PM EDT until July 22 at 5:30PM EDT by NWS Boston/Norton MA

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Boston/Norton MA. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections