Severe Severe Storm ● Closed

Special Marine Warning — Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Special Marine Warning issued August 8 at 8:21PM EDT until August 8 at 9:15PM EDT by NWS Boston/Norton MA

Measurements

Coordinates42.6060, -69.8500
RegionCoastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM
Expires2026-08-08T21:15:00-04:00
Nws UrgencyImmediate
Nws CertaintyLikely

Official source

Weather alert data courtesy of NOAA / National Weather Service

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Severity as published by US National Weather Service.

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Source updated 71 days ago (Aug 9, 2026 00:52 UTC) · we last heard from US National Weather Service 20 seconds ago

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