Special Marine Warning Issued for Florida Keys Waters

Source: NOAA · Florida Keys Marine Areas

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The National Weather Service has issued a Special Marine Warning for specific waters near the Florida Keys due to a waterspout and strong winds, effective until 4:00 PM EDT on April 7, 2026.

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

This notice was issued by NOAA on June 21, 2026 and geographically references Florida Keys Marine Areas. 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, Florida Keys) 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

A Special Marine Warning has been issued by the National Weather Service (NWS) Key West FL. It is effective from 3:09 PM EDT until 4:00 PM EDT on April 7, 2026.

Affected Areas

The warning affects the Gulf of America from the West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms, and Hawk Channel from the West End of Seven Mile Bridge to Halfmoon Shoal out to the reef. Specific locations include Annette Key, Howe Key, Coupon Bight, Little Pine Key, Newfound Harbor, Little Knockemdown Key, and Toptree Hammock Key.

What You Should Do

Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.

Expected Conditions

A waterspout is located near Cudjoe Bay and is nearly stationary. Hazards include waterspouts and wind gusts of 34 knots or greater, which can capsize boats, damage vessels, and create suddenly higher waves. Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours.

Timeline

The alert is effective from 3:09 PM EDT on April 7, 2026, and ends at 4:00 PM EDT on the same day.

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?
The National Weather Service has issued a Special Marine Warning for specific waters near the Florida Keys due to a waterspout and strong winds, effective until 4:00 PM EDT on April 7, 2026.
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 Florida Keys Marine Areas. 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.