A westerly and variable flow prevails over the whole area.
For Berck sternes :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods but with plenty of cloud in the morning, sunny in the afternoon. No precipitation. In the evening, clear skies.
SSW force 2 turning WNW force 3 in the middle of the day then NNW force 2. Gusts reaching 13 knots in the middle of the day. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from W. Good visibility becoming excellent in the middle of the day.