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

Special Marine Warning issued September 13 at 3:03PM EDT until September 13

Affecting Biscayne Bay; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM

In effect until: Sep 13, 2026, 7:30 PM

Biscayne Bay; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM

Likely impact; effects through 7:30 PM.

Move to safe harbor until hazardous weather passes. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter.

Read the original bulletin (official text)
SMWMFL

The National Weather Service in Miami has issued a

* Special Marine Warning for...
Biscayne Bay...
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM...

* Until 330 PM EDT.

* At 303 PM EDT, a strong thunderstorm was located near Soldier Key,
moving east at 15 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.

* Locations impacted include...
Soldier Key, Key Biscayne, Cape Florida, and Coral Gables.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™