NWS feedSource freshLast successful check:
Ended official alertUpdated

Special Marine Warning for Cape Cod Bay; Nantucket Sound; Vineyard Sound +6 more

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... Buzzards Bay... Cape Cod Bay... 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......

What the bulletin says to do

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

Full official description

Bulletin details

SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Buzzards Bay... Cape Cod Bay... 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... Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM... Nantucket Sound... Narragansett Bay... Rhode Island Sound... Vineyard Sound... * Until 530 PM EDT. * At 434 PM EDT, strong thunderstorms were located along a line extending from near Tiverton to 6 nm southeast of The Coastal Waters South Of Marthas Vineyard, moving northeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Squibnocket Bight, Menemsha Bight, Wasque Point, Mount Hope Bay, Gay Head Light, Rocky Point, Teaticket, The Coastal Waters South Of Marthas Vineyard, Vineyard Sound, Buzzards Bay, Cape Poge Light, Point Gammon, Edgartown Harbor, Hyannisport, Nantucket Sound, Great Point Light On Nantucket, Brant Point Light, West Island In Buzzards Bay, Lamberts Cove, and Cuttyhunk Island.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Special Marine Warning issued July 21 at 4:34PM EDT until July 21 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