For De Saint-Nazaire à Nantes :
No gale warning.
We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.
Very cloudy. No precipitation. In the evening, changeable skies clearing completely.
No precipitation. W wind force 3 from the middle of the day. Gusts reaching 17 knots in the evening. Smooth sea. Low, short swell from W. Excellent visibility.