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SITUATION. The intense disturbance that will affect Italy between Thursday and the Weekend, fed by rather cold air during the period of descent from Greenland, will not only bring intense phenomena in most of our regions, but also a sharp drop in temperatures, with the first seasonal snowfall expected in the Alps, as well as parts of the Apennines.
FRIDAY THE FRONT COLD BREAKS – On Friday, the Arctic air mass will attack the Alps, making its entry into the north-central regions between afternoon and night. The greatest effects will be in the North, with the trajectory of the main entrance bringing heavier daytime rains in the alpine hills of Lombardy and Triveneto, while in Piedmont and Valle d’Aosta the phenomena will tend to be concentrated mainly in the border alpine sectors.
With the main entrance, the snow level will drop significantly and settle between the afternoon and evening. at 1200-1400 meters, locally further down the Rhaetian borders. In the afternoon, the snow level in sharp decline (1300/1500) also in the Venetian Dolomites and in Carnia.
The frontal step will also make its effects felt in the central regions, again with a marked drop in temperatures and with the first snowflakes that could descend to 1800/2000 meters in the central Apennines, especially in the Sibillini.
BETWEEN SATURDAY AND SUNDAY OPPORTUNITIES FOR NEW SNOW, EVEN IN APENINAS – Between Saturday and Sunday in the north, we should have drier weather conditions due to the prevalence of intense currents Northerners, however, we expect new rainfall in the border areas, with snowfall mostly in the early hours of Saturday in the Aosta Valley from 1100-1300 meters. High variability along the south-central Apennines with some 1800m snow splashes between Marche, Umbria and Abruzzo.
Sunday, the entry of a second impulse from the west will determine an intensification of instability along the Apennine mountain range, with cold air at stake that will favor snowfall from 1300/1700 m on the central ridge, up to 900/1200 m in the Emiliano. At the same time, a new one can reach the western Alps from France, determining some snowfall in the Franco-Swiss border areas.
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