For Mentawai islands :
No gale warning.
The reliability of the situation is very good.
Storms developing. Heavy showers. In the evening, very cloudy with risk of storms.
Showers towards the end of the night. WNW wind force 3 from the middle of the day. Gusts reaching 16 knots. Slight sea. Low, short swell from SW. Good visibility becoming poor in the evening.