Country of Savoy. Orange snow and ice alert extended until tomorrow morning

It was due to end at 8 p.m. this Monday evening, Météo France finally decided to extend the Orange snow-ice alert in Savoie until tomorrow, Tuesday December 24 at 10 a.m. “The activity of the disturbance declines markedly at the start of the evening with a snow intensity of 1 to 2 cm/h,” writes Météo France. The snow showers gradually weaken during the evening and during the first part of the night before fading completely during the second part of the night. Under this latest precipitation, the rain and snow limit is established around 400/500 meters this evening, to drop slightly towards 300/400 meters during the night. »

Risk of icy formation on the roads during the night

However, the national meteorological organization warns of the fact that at this “end of the night, the sky ends up being exposed, favoring the formation of black ice on the roads. This risk extends until mid-morning » Tuesday. A situation which must be seriously taken into account by motorists. “Over this entire episode, the layer of snow on the ground expected for tomorrow morning is of the order of 5 to 10 cm from 600 meters altitude, 15 to 30 cm at 800 meters, 40 to 60 cm of snow around 1,000 meters above sea level, up to locally 80 cm at 1,500 meters above sea level,” summarizes Météo France.

The Savoie prefecture adds that “the northwest wind is blowing strongly. It still reaches 30 to 50 km/h in gusts in the plains and exceeds 80 km/h in gusts in medium mountains, which can cause accumulations of snow in places in the form of drifts. The latter will have to be particularly vigilant until the arrival of the sun on Tuesday morning, the temperatures will be rather low, hence a pronounced risk on the roads.