NWS Key West FLMA.W 0290September 29, 2026
Special Marine Warning: Gulf of America including Dry Tortugas and Rebecca Shoal Channel, Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM and Straits of Florida from Hal
The National Weather Service office in Key West issued a special marine warning for Gulf of America including Dry Tortugas and Rebecca Shoal Channel, Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM and Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out, which was in force until 5:00 p.m. local time on September 29. It was the 290th special marine warning the NWS office in Key West issued in 2026.
ExpiredWarning
In force for 1 hour; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Key West FL
- Area
- Gulf of America including Dry Tortugas and Rebecca Shoal Channel, Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM and Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out
- Level
- Warning
- Issued
- 4:00 p.m. EDT, September 29, 2026
- Expires
- 5:00 p.m. EDT, September 29, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KKEY MA.W 0290
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SMWKEY The National Weather Service in Key West has issued a * Special Marine Warning for... Straits of Florida from Halfmoon Shoal to 20 nm west of Dry Tortugas out 60 nm... Gulf of America including Dry Tortugas and Rebecca Shoal Channel... * Until 500 PM EDT. * At 359 PM EDT, a severe thunderstorm was located 17 nm south of Tortugas Ecological Reserve South, moving north at 15 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...National Weather Service Meteorologist. IMPACT...Expect wind gusts in excess of 50 knots and suddenly higher waves, boats could sustain significant damage or capsize. * Locations in the warning include... Tortugas Ecological Reserve South.
What the agency told people to 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. Intense and continuous lightning is occurring with this storm. Stay low, or go below. Lower VHF antenna, outriggers, fishing rods, and umbrellas.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.