A northwesterly and variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, moderate and variable.
For Saint-Idesbald :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Cloud and long sunny periods. No precipitation. In the evening, skies with few clouds covering over progressively.
No precipitation. E force 3 turning NNE force 4 in the middle of the day then NE. Gusts reaching 20 knots in the evening. Smooth to slight sea. Low, short swell from N then from NNW in the middle of the day then from N. Poor visibility becoming excellent in the middle of the day.