A southeasterly, moderate and very variable flow prevails over the whole area.
For Gravelines :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies. In the evening, clear skies.
SE wind force 2 from the middle of the day. Gusts reaching 12 knots in the middle of the day. Smooth to slight sea. Low, short swell from NNE. Excellent visibility.