Special Marine Warning Issued for Massachusetts Coastal Waters
This alert is no longer in effect.
NOAA issued it on August 8, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Boston/Norton has issued a Special Marine Warning for Massachusetts Bay and nearby coastal waters until 8:30 PM EDT due to a strong thunderstorm with high winds and small hail.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Massachusetts coastal waters
- Issued
- August 8, 2026
- Issuing authority
- NWS Boston/Norton MA
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Massachusetts coastal waters.
Alert Details
Special Marine Warning issued by NWS Boston/Norton MA. Effective from 7:34 PM EDT on August 8, 2026 until 8:30 PM EDT on August 8, 2026. Severity: Severe. Urgency: Immediate. Certainty: Likely.
Affected Areas
Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Massachusetts Bay and Ipswich Bay; Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM. Locations impacted include Jeffreys Ledge Buoy 44098, The Coastal Waters East Of Cape Ann, and Thatcher Island.
What You Should Do
Avoid the area. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Expected Conditions
At 7:34 PM EDT, a strong thunderstorm was located near Thatcher Island, moving east at 25 knots. Hazard includes wind gusts 34 knots or greater and small hail.
Timeline
Alert effective August 8, 2026 from 7:34 PM EDT until 8:30 PM EDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (913 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 8, 2026.
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Common questions about this NWS weather alert.