Für Thonon les Bains : No gale warning.
For the night from Tuesday to Wednesday NE force 0 in the early part of the night turning ESE force 1. Gusts reaching 6 knots. Poor visibility becoming reduced by mist in the middle of the night then reduced by mist. Daytime of Wednesday 20 may : Warning:reduced visibility early in the day. Cloudy with risk of fog in the morning, very cloudy in the afternoon. Light showers all day.
In the evening, good clear periods but lots of cloud, too. Light showers. SE force 1 turning NW in the middle of the day then SW. Gusts reaching 10 knots in the evening. Visibility reduced by mist becoming excellent in the middle of the day then poor.