For Halfway Rock :
No gale warning.
The reliability of the situation is very good.
Sun but cloud increasing in the morning, very cloudy skies becoming totally covered in the afternoon. No precipitation in the morning, drizzle in late afternoon. In the evening, overcast and misty, reduced visibility.
Heavy showers. WSW force 2 in the morning turning SE force 3 in the middle of the day. Gusts reaching 15 knots in the evening. Smooth to slight sea becoming slight in the evening. Low, short swell from SE. Poor visibility becoming good in the middle of the day then reduced by mist.