For Lac du Der : No gale warning.
The reliability of the situation is assessed at 95%.
Skies progressively hazing over in the morning, sunny in the afternoon. No precipitation.
In the evening, cloudy spells, sometimes dense. No precipitation. NNW force 2 turning W force 3 in the middle of the day then WNW. Gusts reaching 13 knots from the middle of the day. Excellent visibility.