For Châtelaillon :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable to very cloudy. Possibility of showers late in the morning, possibility of a few spots in the afternoon. In the evening, relatively clear skies becoming changeable.
SE force 3 turning SSW force 4 in the middle of the day then WSW. Gusts reaching 24 knots in the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, fairly long swell from W. Excellent visibility becoming excellent in the middle of the day.