Special Marine Warning Issued for Coastal Waters ME to MA

Source: NOAA · Coastal Waters from Maine to Massachusetts

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NWS Gray ME has issued a Special Marine Warning for coastal waters from Cape Elizabeth, ME to Merrimack River, MA until 5:15 PM EDT.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on May 31, 2026 and geographically references Coastal Waters from Maine to Massachusetts. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Weather Alerts — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Special Marine Warning, Coastal Maine) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

Special Marine Warning issued by NWS Gray ME. Effective from 4:13 PM EDT on May 19, 2026 until 5:15 PM EDT on May 19, 2026. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM; Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM; Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM. Locations impacted include The Mouth Of The Merrimack River, Hampton, York, and Portsmouth.

What You Should Do

Move to safe harbor immediately as gusty winds and high waves are expected. Small craft could be damaged in briefly higher winds and suddenly higher waves.

Expected Conditions

At 4:13 PM EDT, a strong thunderstorm was located near Hampton, moving east at 25 knots. Hazard: Wind gusts to 40 knots.

Timeline

Alert effective May 19, 2026 at 4:13 PM EDT. Expires May 19, 2026 at 5:15 PM EDT.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Gray ME has issued a Special Marine Warning for coastal waters from Cape Elizabeth, ME to Merrimack River, MA until 5:15 PM EDT.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Coastal Waters from Maine to Massachusetts. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.