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NWS Key West FLMA.W 0283September 18, 2026

Special Marine Warning: Gulf of America including Dry Tortugas and Rebecca Shoal Channel

The National Weather Service office in Key West issued a special marine warning for Gulf of America including Dry Tortugas and Rebecca Shoal Channel, which was in force until 7:45 p.m. local time on September 18. It was the 283rd special marine warning the NWS office in Key West issued in 2026.

ExpiredWarning

Issued7:09 p.m. EDT, September 18, 2026
In force7:09 p.m. EDT, September 18, 2026
Expired7:45 p.m. EDT, September 18, 2026

In force for 36 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
Gulf of America including Dry Tortugas and Rebecca Shoal Channel
Level
Warning
Issued
7:09 p.m. EDT, September 18, 2026
Expires
7:45 p.m. EDT, September 18, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KKEY MA.W 0283
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... Gulf of America including Dry Tortugas and Rebecca Shoal Channel... * Until 745 PM EDT. * At 709 PM EDT, a strong thunderstorm was located near W Tower, moving south at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...National Weather Service Meteorologist. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. * Locations in the warning include... W Tower.

What the agency told people to do

Boaters should seek safe harbor as quickly, and as safely as possible. When downpours reduce visibility, slow down. 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.

The record around this notice