Special Marine Warning for Waters Off St. Augustine to Flagler Beach Through 8:00 PM

Source: NOAA · Northeast Florida Coastal Waters

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The National Weather Service has issued a Special Marine Warning for offshore waters between St. Augustine and Flagler Beach as a severe thunderstorm brings threats of high winds and large hail.

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

This notice was issued by NOAA on April 3, 2026 and geographically references Northeast Florida Coastal Waters. 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, SpecialMarineWarning, Florida) 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

The National Weather Service in Jacksonville has issued a Special Marine Warning for offshore waters. This alert is in response to a severe thunderstorm detected by radar that is capable of producing hazardous marine conditions.

Affected Areas

The warning covers the waters from St. Augustine to Flagler Beach, FL, extending from 20 to 60 nautical miles offshore.

What You Should Do

Boaters in the affected area should seek safe harbor immediately until the storm passes. If your vessel is caught offshore, take the following precautions:

  • Immediately secure the vessel for heavy weather.
  • Ensure all crew members are wearing USCG approved Type I life jackets.
  • Move nonessential crew members below decks.
  • Deploy jack lines and harnesses if available.
  • Check life-saving equipment and handheld radio batteries for readiness.
  • Stay below deck if possible and keep away from ungrounded metal objects to avoid frequent lightning.

Expected Conditions

  • Wind: Gusts of 34 knots or greater.
  • Hail: Large hail capable of causing structural damage.
  • Other Hazards: High waves, dangerous lightning, and heavy rain.
  • Current Movement: As of 6:52 PM EDT, a severe thunderstorm was located 45 nm northeast of Ormond-By-the-Sea, moving northeast at 25 knots. The storm is expected to remain over mainly open waters.

Timeline

The Special Marine Warning is effective immediately and is scheduled to expire at 8:00 PM EDT on March 15.

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 offshore waters between St. Augustine and Flagler Beach as a severe thunderstorm brings threats of high winds and large hail.
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 Northeast Florida Coastal Waters. 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.