For Lac de Montriond : No gale warning.
We are 80% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Good clear periods but lots of cloud, too. No precipitation.
In the evening, changeable skies with risk of storms. Showers becoming less frequent. WSW force 3 in the middle of the day turning SSE force 2 in the evening. Gusts reaching 17 knots in the middle of the day. Excellent visibility.