A northerly, moderate and variable flow prevails over the South of the basin. Over the North-West, it is southerly, strong and very variable. Over the North-East, it is westerly, moderate and variable.
For Cassy - Port de Lanton :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Changeable skies becoming fairly cloud-free in the morning, hazy cloud giving way to brightening skies in the afternoon. No precipitation. In the evening, hazy cloud giving way to increasingly brighter skies.
No precipitation. NW force 3 becoming WNW force 4 in the middle of the day then NW. Gusts reaching 22 knots in the evening. Smooth sea. Low, fairly long swell from WNW. Poor visibility becoming excellent in the middle of the day.