For Sumatra SE tips :
No gale warning.
The reliability of the situation is good.
Cloudy spells, dense at times in the morning, sunny in the afternoon. No precipitation. In the evening, light cloudy spells.
NW force 2 turning SW force 3 in the middle of the day then W force 2. Gusts reaching 11 knots in the middle of the day. Moderate sea. Low, fairly long swell from S. Poor visibility becoming excellent in the middle of the day then poor.