For Châtelaillon :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies with few clouds. In the evening, relatively clear skies becoming changeable.
Chance of light rain. W force 3 in the middle of the day turning NW in the evening. Gusts reaching 17 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, short swell from WNW. Excellent visibility.