Low 997 hPa centered on the South-East of the Bay of Biscay moving at 12 knots to the North-North-West to be centered on the North of the Bay of Biscay.
For Saint-Brevin-Les-Pins :
No gale warning.
We are 90% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Overcast skies. Some light rain in the morning, light showers in the afternoon. In the evening, very cloudy skies to overcast.
Possibility of showers ESE force 4 becoming force 3 in the middle of the day then E. Gusts reaching 20 knots in the evening. Slight sea. Low, long swell from WSW. Poor visibility becoming good in the middle of the day then good.