A northerly, moderate and mostly variable flow prevails over the whole area.
For Berck sternes :
No gale warning.
We are 85% sure of the situation, because the atmosphere might not be as stable as forecast.
Lots of good clear periods. Chance of light rain. In the evening, good clear periods but cloud building.
No precipitation. NW wind force 3 from the middle of the day. Gusts reaching 15 knots in the middle of the day. Smooth sea. Low, fairly long swell from WNW. Excellent visibility becoming good in the evening.