For Gwynn Island Reef :
No gale warning.
The reliability of the situation is very good.
Good clear periods but cloud building. Possibility of showers In the evening, very cloudy skies becoming totally overcast.
Possibility of showers ENE force 4 in the middle of the day becoming NE force 5 in the evening. Gusts reaching 23 knots in the evening. Slight sea. Low, short swell from SSE. Good visibility becoming excellent in the evening.