An easterly and very variable flow prevails over the South and the West of the basin. Over the North-East, it is northwesterly, moderate and very variable.
For Heist :
No gale warning.
The reliability of the situation is assessed at 90%.
Sunny despite some cloud arriving in late morning. In the evening, skies gradually hazing over.
No precipitation. SE force 3 turning W in the middle of the day then WSW. Gusts reaching 19 knots in the middle of the day. Smooth to slight sea. Low, short swell from N then from NNW in the middle of the day then from WSW. Excellent visibility.