For Tasman Island :
Warning moderate gale.
The reliability of the situation is good.
Cloud and long sunny periods. Showers towards the end of the night. In the evening, good clear periods but cloud building.
Possibility of showers W wind force 7 from the middle of the day. Gusts reaching 45 knots in the evening. Rough to very rough sea becoming very rough in the evening. Low, fairly long swell from SSE then moderate in the evening. Excellent visibility.