Special Marine Warning Issued for Coastal Waters from South Santee River to Edisto Beach, South Carolina
A Special Marine Warning has been issued for the West North Atlantic Coastal Waters from the South Santee River to Edisto Beach, South Carolina, out to 20 nautical miles as strong thunderstorms move across the coastal waters. The warning highlights dangerous conditions capable of producing strong wind gusts, frequent lightning, torrential rainfall, and hazardous waves, creating life-threatening conditions for anyone on the water.
Boaters, anglers, and anyone planning to head offshore should postpone travel until storms have cleared. Thunderstorms over coastal waters can strengthen rapidly, producing sudden wind shifts and rough seas with little warning. Even experienced mariners can encounter dangerous conditions in a matter of minutes.
Dangerous Marine Conditions Expected
The strongest thunderstorms may produce:
- Wind gusts exceeding 34 knots (39 mph)
- Frequent cloud-to-water lightning
- Heavy rainfall reducing visibility
- Rough, choppy seas
- Isolated waterspouts cannot be ruled out in stronger storms
These hazards can capsize smaller vessels and make navigation extremely difficult.
Safety Tips for Boaters
If you are on the water:
- Immediately head to the nearest safe harbor if possible.
- Monitor NOAA Weather Radio and marine weather updates.
- Ensure everyone aboard is wearing a properly fitted life jacket.
- Avoid open decks during lightning.
- Secure loose equipment and prepare for rapidly changing sea conditions.
If you are unable to reach shore before the storms arrive, reduce speed, keep your bow into the waves when safe to do so, and remain alert for sudden wind shifts.
Weather Pattern
The warning comes as a typical summertime weather pattern continues across the Southeast, where hot, humid air is fueling scattered to numerous afternoon thunderstorms. Storms moving offshore are capable of intensifying over the warm Atlantic waters, creating hazardous marine conditions even when weather appears relatively calm near the coast.
Mariners should continue monitoring the latest forecasts, as additional marine warnings may be issued throughout the day if new thunderstorms develop.
Stay with Radar Watch HQ for the latest marine warnings, severe weather updates, tropical forecasts, and real-time weather coverage across the United States.
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🛒 Radar Watch HQ Marine Safety Picks
Prepare before you head out on the water. Our recommended marine safety essentials can help keep you and your crew safe during changing weather conditions.
