A southeasterly, very strong and very variable flow prevails over the whole area.
For Berck sternes :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fog giving way to sun in early morning, sunny in the afternoon. No precipitation. In the evening, cloud and long sunny periods.
No precipitation. SE force 3 in the morning becoming ESE force 4 in the middle of the day. Gusts reaching 24 knots in the middle of the day. Slight sea. Low, fairly long swell from WSW. Visibility reduced by mist becoming excellent in the middle of the day.