A northwesterly, moderate and very variable flow prevails over the West and the North of the basin. Over the South-East, it is southerly, weak and very variable.
For Heist :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
In the evening, skies with few clouds.
N wind force 2. Gusts reaching 12 knots in the evening. Smooth to slight sea. Low, short swell from NNW. Good visibility.