For Lac du Der : No gale warning.
We are 90% sure of the situation, because the clear patches could be more numerous than forecast.
Very cloudy. Light showers.
In the evening, very cloudy with risk of storms. Possibility of showers NW force 4 in the middle of the day becoming force 3 in the evening. Gusts reaching 19 knots in the middle of the day. Excellent visibility becoming good in the evening.