A westerly, very strong and very variable flow prevails over the whole area.
For Pornic :
Warning strong breeze offshore.
For the night from Friday to Saturday W force 4 in the early part of the night temporarily force 5. Gusts reaching 25 knots in the middle of the night.
Slight sea. Low, fairly long swell from W. Excellent visibility. Daytime of Saturday 24 october : The atmosphere will remain unstable.
Very cloudy skies. Becoming more changeable for a time in the morning. Light showers all day. In the evening, very cloudy.
Light showers. WNW force 4 in the morning becoming W force 3 in the evening. Gusts reaching 23 knots in the morning. Slight sea. Low, fairly long swell from W. Excellent visibility.