For Lac de Montriond : No gale warning.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
Cloudy spells, sometimes dense. Possibility of showers
In the evening, good clear periods but lots of cloud, too. Possibility of showers NW wind force 2 from the middle of the day. Gusts reaching 13 knots in the evening. Excellent visibility becoming good in the evening.