For Lac de Genval : No gale warning.
The reliability of the situation is assessed at 95%.
Cloud and long sunny periods. No precipitation.
In the evening, relatively clear skies becoming changeable. W force 1 becoming force 2 in the middle of the day then WNW. Gusts reaching 12 knots from the middle of the day. Visibility reduced by mist becoming excellent in the middle of the day.