Low 1011 hPa centered on the South of the North Sea moving at 32 knots to the South-South-West and rising to 1015 hPa to be centered on the center of Spain.
For Marans : No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies.In the evening, light cloudy spells. W force 4 in the middle of the day becoming force 3 in the evening. Gusts reaching 20 knots in the middle of the day. Smooth sea becoming smooth to slight in the evening. Low, short swell from WNW. Excellent visibility.
semaphore stations
Station La Rochelle-Ile De Re located 21 km from Marans