High 1030 hPa centered on Switzerland remaining almost stationary.
For Saint-Valery-sur-Somme :
No gale warning.
The reliability of the situation is fairly good.
For the night from Saturday to Sunday NE force 1 in the early part of the night turning E. Gusts reaching 5 knots at the end of the night.
Smooth to slight sea. Low, fairly long swell from W. Good visibility becoming poor in the middle of the night then reduced by mist. Daytime of Sunday 24 may : Warning:reduced visibility early in the day.
Fog giving way to sun in early morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
ESE force 1 turning NNW force 2 in the middle of the day then N. Gusts reaching 10 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Visibility reduced by mist becoming excellent in the middle of the day.