For Lac de Tanay : No gale warning.
We are 80% sure of the situation, because there is a doubt about the altitude of the rain-snow line.
Overcast with reduced visibility in the morning, very cloudy skies to overcast in the afternoon. Drizzly sleet.
In the evening, very cloudy. Warning: icy conditions likely. WNW force 1 turning NE in the middle of the day then SW. Gusts reaching 9 knots in the middle of the day. Visibility reduced by mist becoming reduced by mist in the middle of the day then poor.