Special Marine Warning Issued for Straits of Florida

Source: NOAA · Straits of Florida

This alert is no longer in effect.

NOAA issued it on May 13, 2026, 3 months 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.

A Special Marine Warning is in effect for the Straits of Florida from the west end of Seven Mile Bridge to south of Halfmoon Shoal out 60 NM, with strong thunderstorms expected to bring wind gusts over 34 knots until 1:00 AM EDT.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Straits of Florida
Issued
May 13, 2026
Issuing authority
NWS Key West FL

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 3 months ago; use the issuing agency's live warning service for current conditions in Straits of Florida.

Alert Details

A Special Marine Warning has been issued by NWS Key West FL. It is effective from 12:12 AM EDT on May 3, 2026, until 1:00 AM EDT on May 3, 2026.

Affected Areas

The warning affects the Straits of Florida from the west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM, and from the west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out.

What You Should Do

Prepare for wind gusts in excess of 34 knots, steep and fast-building seas, frequent lightning, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets.

Expected Conditions

Hazards include wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours from a strong thunderstorm.

Timeline

The alert is effective from 12:12 AM EDT on May 3, 2026, and ends at 1:00 AM EDT on May 3, 2026.

Original source: NOAA Official Notice ↗

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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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
A Special Marine Warning is in effect for the Straits of Florida from the west end of Seven Mile Bridge to south of Halfmoon Shoal out 60 NM, with strong thunderstorms expected to bring wind gusts over 34 knots until 1:00 AM 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 Straits of Florida. 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.