For Lac de Serre-Poncon : 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.
Skies very cloudy to overcast, risk of thundery outbreaks during the afternoon. Rain in the morning, showers dying away in the afternoon.
In the evening, cloud and long sunny periods. No precipitation. NW force 1 in the morning temporarily S in the middle of the day. Gusts reaching 11 knots in the middle of the day. Excellent visibility.