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September 23, 2020
ore 23:53
Editorial team 3BMeteo
1 minute, 43 seconds
SITUATION. The intense disruption that reaches the Weekend, fed by rather cold air during the period of descent from Greenland, will not only bring intense phenomena first to the north and then also to the south-central regions, but also a sharp drop in temperatures, with the seasonal first snow waiting in the Alps, as well as in stretches of the Apennines.
COLD COLD COLD FRONT COLD IN ITALY – Even with the latest model updates, the day of Friday the air mass of arctic origin will lean against the Alps, making its entrance into the north-central regions in the course of the afternoon. The greatest effects will be in the North, with the trajectory of the main entrance bringing heavy rains in the alpine mountains of Lombardy and Triveneto, while in Piedmont and Valle d’Aosta the rains will mainly affect the border alpine sectors.
With front entry the snow level will plummet, settling around 1200-1400 meters between evening and night. In the afternoon, the snow level dropped sharply (1400/1500) also in the Venetian Dolomites and Carnia, although with less intense rains.
The front passage will also make its effects felt in the central regions, also here with a marked drop in temperatures and with the first snowflakes that could descend to 1900/2000 meters in the central Apennines, especially in the Sibillini.
BETWEEN SATURDAY AND SUNDAY OPPORTUNITIES FOR NEW SNOWS, EVEN IN APENINAS – Between Saturday and Sunday in the north we will have to have dry weather conditions as a whole, due to the prevalence of north currents, however we expect new rainfall in the border areas, with snow on Saturday especially in the Aosta Valley up to 1100-1200 meters.
On Sunday, the entry of a second impulse that could lead to the formation of a vortex of depression in the central regions capable of attracting even colder air that enters the port of Bora. If this dynamic were confirmed, we could have snowfalls of some consistency in the central Apennines, with snow level even fluctuating between 1400 and 1800 m.
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