For De Saint-Nazaire à Nantes :
No gale warning.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
Very cloudy skies to overcast. No precipitation in the morning, possibility of showers in the afternoon. In the evening, very cloudy skies to overcast.
Chance of light rain. WSW wind force 4 continuing all day. Gusts reaching 28 knots from the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Good visibility becoming excellent in the middle of the day.