For De Saint-Nazaire à Nantes :
No gale warning.
We are 70% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Fairly cloudless skies becoming changeable during the morning, skies clearing but storms likely in the afternoon. Risk of some spots of rain in the morning, light showers in the afternoon. In the evening, changeable skies with risk of storms.
Light showers progressively becoming less frequent. ENE force 4 becoming E force 3 in the middle of the day then ENE. Gusts reaching 29 knots in the middle of the day. Smooth sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day then good.