A westerly, very strong and variable flow prevails over the whole area.
For Marennes :
No gale warning.
We are 90% sure of the situation, because flows might be far more disturbed than forecast.
In the evening, cloud and long sunny periods.
Light showers progressively becoming less frequent. WSW wind force 4. Gusts reaching 18 knots in the evening. Smooth sea. Low, short swell from SW. Excellent visibility.