NWS Key West FLMA.W 0259September 12, 2026
Special Marine Warning: Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound
The National Weather Service office in Key West issued a special marine warning for Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound, which was in force until 6:45 p.m. local time on September 12. It was the 259th special marine warning the NWS office in Key West issued in 2026.
ExpiredWarning
In force for 35 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Key West FL
- Area
- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound
- Level
- Warning
- Issued
- 6:10 p.m. EDT, September 12, 2026
- Expires
- 6:45 p.m. EDT, September 12, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KKEY MA.W 0259
- 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... Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound... * Until 645 PM EDT. * At 610 PM EDT, a strong thunderstorm was located over Bob Allen Keys. The strong thunderstorm was nearly stationary. 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... Coon Key, Dump Keys, Mosquito Point, Twin Keys, Florida Bay, Manatee Keys, and Twisty Mile.
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.
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.