The evening of Thursday 19 December 2024the department ofIsère and the massifs of Alps they will experience intense snowfall, as forecast by Météo France. The snowfall will affect different altitudes, bringing a copious white blanket even at low altitudes.
Snowflakes in southern Isère
The first snowfall will begin in the late afternoon of Thursday 19 December in the areas south of Grenobleinvolving locations such as Villard-de-Lans, The Blackberry e Valjouffrey. Overnight, the snow will move to other areas as Theys e Bourg d’Oisansprogressively extending to a greater portion of the territory.
The snowfall rate, initially above 2000 meterswill drop rapidly throughout the day. In the afternoon, the flakes will reach altitudes between 1200 and 1400 metersand then lower further until 500 meters during the night. In many areas of the eastern and southern massifs Central Massifthe snow line will temporarily settle in 700 and 800 meterscreating snowy landscapes even at moderate altitudes.
Weather conditions suggest further snowfall during the morning Friday 20 Decemberwith possible local clearing in the afternoon.
Significant accumulations in the Alps
The Alps will see the heaviest snowfall overnight Thursday e Friday. In particular, the Collet d’Allevardlocated inIsèrewill be one of the areas with the greatest snow accumulations. The conformation of the Alpine massifs will favor abundant rainfall, fueling a significant snow cover which could influence traffic and activities in the area.
The expected temperatures, which will drop sharply during the night, will contribute to consolidating the snow cover even at low altitudes, making it necessary to pay attention on roads and mountain routes.
Climatic conditions on the massifs
The meteorological phenomenon is accompanied by a significant drop in temperatures, which will make ice formation possible in the coldest hours. The areas affected include both the eastern Alpine massifs and internal mountain ranges, creating perfect scenarios for winter sports enthusiasts but with possible disruption to road traffic.
The expected snowfalls will not only bring benefits to winter tourism, but could also cause difficulties for transport, especially in the evening and night hours. Local authorities recommend maximum caution and adequate equipment, with winter tires or chains, for anyone who has to move in mountain areas.
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