For Vivier :
Warning strong breeze.
The reliability of the situation is assessed at 90%.
Good clear periods but cloud building. Showers. In the evening, very cloudy.
Showers. NNW force 6 in the middle of the day becoming NW force 5 in the evening. Gusts reaching 43 knots in the middle of the day. Rough sea. Moderate, fairly long swell from NNW. Excellent visibility.