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Severe · Special Marine WarningThis alert has expired. It is kept for reference.

Special Marine Warning issued October 3 at 9:15PM EDT until October 3

Affecting Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Hawk Channel from Ocean Reef to Craig Key out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM

In effect until: Oct 4, 2026, 1:45 AM

Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Hawk Channel from Ocean Reef to Craig Key out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM

Likely impact in Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; effects through 1:45 AM.

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.

Read the original bulletin (official text)
SMWKEY

The National Weather Service in Key West has issued a

* Special Marine Warning for...
Hawk Channel and Straits of Florida from Ocean Reef to Craig Key
out 20 nm...
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound...

* Until 945 PM EDT.

* At 915 PM EDT, a strong thunderstorm was located near Carysfort
Reef Light, moving northwest at 15 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher
waves, frequent lightning, and heavy downpours.

* Locations in the warning include...
Key Largo Dry Rocks, Dusenberry Creek, Grouper Creek, Tarpon Basin,
Blackwater Sound, Spiegel Grove, and Carysfort Reef Light.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™