High 1027 hPa centered at 150 nautical miles in the West-South-West of the Île de Sein moving at 16 knots to the North-East and gaining strength to 1033 hPa to be centered on Wales.
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 Sunday to Monday NNE force 2 in the early part of the night becoming NE force 3. Gusts reaching 12 knots in the middle of the night.
Smooth sea. Low, fairly long swell from W. Good visibility becoming reduced by mist in the middle of the night. Daytime of Monday 21 september : Improving during the day:the sky will clear.
Sun but cloud increasing in the morning, sunny despite some high cloud in the afternoon. No precipitation. In the evening, clear skies.
NE wind force 3 continuing all day. Gusts reaching 15 knots from the middle of the day. Smooth sea. Low, fairly long swell from W. Visibility reduced by mist becoming excellent in the middle of the day.