An easterly, very strong and very variable flow prevails over the North of the basin. Over the South-West, it is southerly, strong and very variable. Over the South-East, it is northwesterly, moderate and particularly variable.
For Vieux-Boucau :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies with few clouds. In the evening, changeable skies becoming less cloudy.
No precipitation. WNW force 4 in the middle of the day becoming W force 3 in the evening. Gusts reaching 24 knots in the middle of the day. Slight sea. Low, fairly long swell from NW. Excellent visibility becoming good in the evening.