For Hilton Head Reef - 200" Barge + tires :
No gale warning.
The reliability of the situation is very good.
Skies changeable to very cloudy. No precipitation. In the evening, clear periods developing.
No precipitation. SW force 3 in the morning turning WNW in the evening. Gusts reaching 18 knots in the middle of the day. Slight sea. Low, short swell from ESE. Good visibility becoming excellent in the middle of the day then excellent.