High 1022 hPa centered on the North of France moving at 19 knots to the South and gaining strength to 1025 hPa to be centered on the North-East of Spain.
For Saint-Denis-d"Oléron : No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies.In the evening, clear skies. WNW wind force 3 from the middle of the day. Gusts reaching 13 knots in the evening. Smooth to slight sea. Low, fairly long swell from NW. Excellent visibility.
semaphore stations
Station Chassiron located 3 km from Saint-Denis-d'Oléron