Special Marine Warning Issued for Straits of Florida

Source: NOAA · Straits of Florida

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NWS Key West has issued a Special Marine Warning for the Straits of Florida due to a strong thunderstorm producing wind gusts of 34 knots or greater until 5:30 AM EDT.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Straits of Florida
Issued
September 6, 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.

Alert Details

Special Marine Warning issued by NWS Key West FL. Effective from 5:01 AM EDT September 6, 2026 until 5:30 AM EDT September 6, 2026. Severity: Severe. Urgency: Immediate. Certainty: Likely.

Affected Areas

Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out. Locations include Wood's Wall East Crack.

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

At 5:01 AM EDT, a strong thunderstorm was located near Wood's Wall East Crack, moving northwest at 5 knots. Hazard includes wind gusts 34 knots or greater. Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours.

Timeline

Alert effective September 6, 2026 at 5:01 AM EDT and expires September 6, 2026 at 5:30 AM 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 Key West has issued a Special Marine Warning for the Straits of Florida due to a strong thunderstorm producing wind gusts of 34 knots or greater until 5:30 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.