High 1028 hPa centered at 100 nautical miles in the West-South-West of the Île de Sein moving at 21 knots to the East-North-East to be centered on Normandy.
For Saint-Brevin-Les-Pins :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Tuesday to Wednesday NW force 2 in the early part of the night turning NNE force 1. Gusts reaching 10 knots in the early part of the night.
Slight sea. Low, fairly long swell from WSW. Excellent visibility becoming good in the middle of the night then poor. Daytime of Wednesday 28 october : The weather will be good.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, lots of good clear periods.
No precipitation. E force 1 in the morning becoming ENE force 2 in the evening. Gusts reaching 9 knots in the evening. Slight sea. Low, fairly long swell from WSW. Poor visibility becoming excellent in the middle of the day then excellent.