A westerly, moderate and mostly variable flow prevails over the whole area.
For Pornichet :
No gale warning.
We are 90% sure of the situation, because the strength of the precipitation is difficult to assess for this type of disturbance.
Changeable skies completely clouding over during the morning, overcast skies and reduced visibility in the afternoon. Light showers followed by rain in the morning, rain in the afternoon. In the evening, clear periods developing.
No precipitation. E force 3 turning N in the middle of the day then WNW. Gusts reaching 16 knots in the morning. Smooth to slight sea. Low, short swell from SW. Poor visibility temporarily in the middle of the day.