For Lac de Vouglans : No gale warning.
We are 80% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
Sun but cloud increasing in the morning, very cloudy with possibility of thunder storms in the afternoon. No precipitation in the morning, showers in the afternoon.
In the evening, cloudy spells, sometimes dense. Possibility of showers WNW force 2 in the morning turning N in the middle of the day. Gusts reaching 18 knots in the middle of the day. Poor visibility becoming excellent in the middle of the day then good.