A westerly, strong and very variable flow prevails over the whole area.
For Rochefort :
No gale warning.
We are 70% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
In the evening, cloud and long sunny periods.
Chance of light rain. WNW wind force 4. Gusts reaching 20 knots in the evening. Smooth sea. Low, fairly long swell from NW. Poor visibility.