A southerly, very strong and mostly variable flow prevails over the West of the basin. Over the East, it is northwesterly, strong and variable.
For Pornic :
Warning moderate gale offshore.
The reliability of the situation is assessed at 90%.
Good clear periods alternating with cloudy spells, sometimes dense. Light showers progressively dying out in the morning, no precipitation in the afternoon. In the evening, light cloudy spells.
NW force 5 in the morning weakening force 2 in the evening. Gusts reaching 30 knots in the morning. Moderate sea becoming slight in the middle of the day. Low, fairly long swell from W. Excellent visibility becoming good in the evening.