A southerly, strong and very variable flow prevails over the whole area.
For Mortagne-sur-Gironde :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fog giving way to sun in early morning, sunny in the afternoon. No precipitation. In the evening, clear skies.
ENE force 3 in the morning temporarily SE in the middle of the day. Gusts reaching 14 knots in the middle of the day. Rippled sea. Low from S then from N in the evening. Visibility reduced by fog becoming excellent in the middle of the day.