A northerly, moderate and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is westerly, moderate and mostly variable.
For Heist :
No gale warning.
We are 80% sure of the situation, because hail may not be as easy to predict.
Little cloud in the morning, skies clouding over with storms forming in the afternoon. No precipitation in the morning, showers with possibility of hail in the afternoon. In the evening, very cloudy with risk of storms.
Showers becoming less frequent. W force 2 freshening force 4 in the middle of the day then becoming NW. Gusts reaching 23 knots in the middle of the day. Smooth to slight sea becoming slight in the evening. Low, short swell from WNW. Good visibility becoming excellent in the middle of the day.