High 1028 hPa centered on Switzerland weakening in a stationary position.
For Plage d’Ecault : No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny despite some cloud arriving in late morning.In the evening, skies with few clouds. S force 3 turning WNW in the middle of the day then NNE. Gusts reaching 17 knots in the evening. Smooth sea. Low, short swell from SW. Excellent visibility.
semaphore stations
Station Boulogne-Sem located 8 km from Plage d’Ecault