Special Marine Warning Issued for Straits of Florida

Source: NOAA · Straits of Florida

This alert is no longer in effect.

NOAA issued it on August 15, 2026, 8 days 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.

NWS Key West has issued a Special Marine Warning for the Straits of Florida due to a strong thunderstorm with wind gusts of 34 knots or greater.

Read this weather record in 30 seconds

Record type
Special Marine Warning
Affected area
Straits of Florida
Issued
August 15, 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 8 days 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 the National Weather Service Key West FL. The alert is effective from August 14 at 11:10 PM EDT until August 15 at 12:15 AM EDT.

Affected Areas

Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM; Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out. Locations in the warning include Wood's Wall East Crack and Marathon Humps.

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 11:10 PM EDT, a strong thunderstorm was located 16 nm southeast of Wood's Wall East Crack, moving northwest at 15 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

The warning is in effect from August 14 at 11:10 PM EDT until August 15 at 12:15 AM EDT.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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?
NWS Key West has issued a Special Marine Warning for the Straits of Florida due to a strong thunderstorm with wind gusts of 34 knots or greater.
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.