For Sumatra SE tips :
No gale warning.
The reliability of the situation is very good.
Very cloudy with risk of storms. Light showers. In the evening, very cloudy with risk of storms.
Light showers progressively becoming less frequent. W wind force 2 from the middle of the day. Gusts reaching 11 knots in the middle of the day. Moderate sea. Moderate, fairly long swell from SSW. Good visibility becoming poor in the evening.