A northwesterly, moderate and variable flow prevails over the North and the East of the basin. Over the South-West, it is easterly, moderate and variable.
For Heist :
No gale warning.
The reliability of the situation is assessed at 90%.
Changeable skies clearing completely. No precipitation. In the evening, skies with few clouds.
N force 3 in the middle of the day turning NE in the evening. Gusts reaching 17 knots in the middle of the day. Slight sea. Low, short swell from NW. Excellent visibility.