A southerly, very strong and variable flow prevails over the whole area.
For Gravelines :
No gale warning.
We are 90% sure of the situation, because flows might be far more disturbed than forecast.
In the evening, overcast and misty, reduced visibility.
Light showers. SE wind force 3. Gusts reaching 13 knots in the evening. Smooth sea. Low, short swell from NE. Visibility reduced by mist.