A westerly, very strong and very variable flow prevails over the South and the West of the basin. Over the North-East, it is southwesterly, very strong and very variable.
For Le Gros Jonc :
No gale warning.
The reliability of the situation is assessed at 90%.
Good clear periods but lots of cloud, too. No precipitation. In the evening, cloud and long sunny periods.
No precipitation. NW force 5 in the middle of the day becoming WNW force 4 in the evening. Gusts reaching 30 knots in the middle of the day. Slight sea. Low, fairly long swell from WSW. Excellent visibility.