For Chapelle sur erdre :
No gale warning.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
Overcast in the morning, very cloudy in the afternoon. Light showers all day. In the evening, light cloudy spells.
W force 2 turning SW in the middle of the day then W force 3. Gusts reaching 13 knots in the middle of the day. Smooth sea. Low, fairly long swell from W. Good visibility becoming good in the middle of the day then excellent.