For Lac du der : No gale warning.
We are 85% sure of the situation, because it is possible that the change in the rain system may not be as clear as forecast.
Very cloudy skies to overcast. Spells of light rain during the morning, showers in the afternoon.
In the evening, stormy but gradually improving. Showers. SW force 2 in the morning freshening force 4 in the middle of the day. Gusts reaching 24 knots in the middle of the day. Excellent visibility.