A southwesterly, strong and very variable flow prevails over the whole area.
For Anse de Chaillé :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fog developing into low cloud during the morning, very cloudy in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. ESE force 2 turning SSW force 3 in the middle of the day then SW force 4. Gusts reaching 18 knots in the evening. Slight sea. Low, fairly long swell from W. Visibility reduced by fog becoming good in the middle of the day then excellent.