For Chatillon : No gale warning.
We are 80% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Skies very cloudy to overcast, risk of thundery outbreaks during the afternoon. Showers all day.
In the evening, stormy but gradually improving. Showers. NNE force 2 turning NNW in the middle of the day then S force 1. Gusts reaching 13 knots in the evening. Poor visibility becoming excellent in the middle of the day then good.