A westerly, moderate and very variable flow prevails over the whole area.
For Saint-Idesbald : No gale warning.
The reliability of the situation is assessed at 90%.
Light cloudy spells.In the evening, relatively clear skies becoming changeable. WNW force 3 in the middle of the day turning WSW in the evening. Gusts reaching 16 knots in the middle of the day. Smooth to slight sea. Low, short swell from NNW. Excellent visibility.
semaphore stations
Station Dunkerque located 20 km from Saint-Idesbald