For Châtelaillon :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies or light cloud. Sun hazing over from time to time. No precipitation. In the evening, clear skies.
NE wind force 3 continuing all day. Gusts reaching 16 knots from the middle of the day. Smooth to slight sea. Low, fairly long swell from WNW. Visibility reduced by mist becoming excellent in the middle of the day.