Special Marine Warning Issued for Gulf Waters Off East Cape Sable to Chokoloskee
The National Weather Service has issued a Special Marine Warning for Gulf waters until 1:30 AM EDT due to a strong thunderstorm with wind gusts exceeding 34 knots.
Alert Details
The National Weather Service in Key West FL has issued a Special Marine Warning (SMW) for the Gulf of America. This alert is effective immediately as a strong thunderstorm moves through the region.
Affected Areas
The warning covers the Gulf waters from East Cape Sable to Chokoloskee, specifically 20 to 60 nautical miles out and beyond 5 fathoms. At 1:00 AM EDT, a strong thunderstorm was located approximately 11 nautical miles northwest of Smith Shoal Light.
Expected Conditions
The identified thunderstorm is moving north at 10 knots. Mariners in the warning area should expect the following hazards:
- Wind Gusts: 34 knots or greater.
- Sea Conditions: Suddenly higher waves and steep, fast-building seas.
- Weather: Frequent lightning and blinding downpours.
According to the National Weather Service, the strong thunderstorm is expected to remain primarily over open waters.
What You Should Do
Boaters and mariners in the affected area should take immediate safety precautions:
- Prepare for wind gusts exceeding 34 knots and suddenly hazardous sea conditions.
- Stay low or go below deck to avoid lightning and wind hazards.
- Ensure all individuals on board are wearing life jackets.
- Avoid the area until the storm has passed.
Timeline
The Special Marine Warning is in effect from 1:00 AM EDT until 1:30 AM EDT on March 16, 2026.
Source: NOAA Official Notice
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