For Hilton Head Reef - 100" Barge + tires :
No gale warning.
The reliability of the situation is good.
Clear skies. In the evening, clear skies.
WNW force 4 in the middle of the day becoming force 3 in the evening. Gusts reaching 21 knots in the middle of the day. Slight sea. Low, short swell from SE. Excellent visibility.