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Here we are. Another twenty hours and many areas of the north will be under snow even on the plains.. The usual disturbance may appear to cause it, in reality the front is accompanied by a deep depressive vortex that will involve western central Europe starting Sunday, causing stormy winds in many nations, as well as precipitation even of a snowy nature.
Typically, storms in Europe often occur at Christmas, but the vortex of depression just sinks that far south, a situation that is the consequence of a slowdown in the polar vortex and the detachment of one of its branches in Europe.
The snow itself will not be so abundant like the one that happened in December 2012, therefore only 8 years ago, but without a doubt the snow during the Christmas or New Year holidays that reaches the northern plains is news, paradoxically much more than in the south and in the Adriatic, because there in recent years it has occurred more frequently.
And the fact that you’ve also questioned the New Year means it may not have ended here.
But let’s take one step at a time, so here is how and where snowfall will occur between 10pm Sunday and Monday morning.
First afternoon flakes in the Aosta Valley and the western Piedmont Alps, then in the Ligurian Apennines at very low altitudes, at sunset in Pavese, Lodigiano, Milan, gradually spreading to most of the northwestern plains at night, but more insistent and continuing in the Lombard sector (mixed with rain only in east of Bresciano, Cremonese and rain only in the Mantua area) of the northeast and in the Piacentino area and perhaps Parma at night, although with some exceptions and scales in the Alps, Pre-Alps and Alpine valleys. Here is the first map with the expected accumulations between Sunday 18 and 24 according to the European model:
Between midnight and 6 am on Monday 28 here is the snow gaining the maximum territorial extension with flakes also in the plains of Veneto, Friuli, mixed with rains on the coasts and in Venice, rain shadow in Romagna and in the east of Emilia (including Bologna).
Light to moderate snowfall spreads across Lombardy, throughout the alpine and pre-alpine sector and the relative valley soils, weaker and intermittent in Piedmont, only a splash in Turin, also flaked in the Tuscan Apennines above 300-400m but with an ascending limit, here the map, some irregular snowfall also on the Ligurian coast possible here and there between Savona and Genoa:
And here is the morning, with the front, not held back by any significant minimum depression, rushing rapidly towards the northeast, favoring other snowfalls but with an ascending limit due to the action of the soft SW air that will file the thermals especially at high altitude, transforming the snow that in those hours will fall copiously (yellow-brown color) in rain or rain mixed with snow on the plains of Triveneto.
Meanwhile, gradual improvement in the northwest, where the phenomena will end almost immediately in Piedmont, by 11-12 also in Lombardy, especially in the west, severe bad weather meanwhile in the center with rains, storms and snow only above 1200m in the Apennines, Libeccio’s Thesis winds:
Here the expected temperatures at sunrise on Monday at 1500m, you can see the cold layer still present in the north, while in the center and south the soft air predominates everywhere due to the strong Libeccio:
ACCUMULATIONS:
Alps: from 20 (west) to 40 cm (center-east) at an average altitude of 1200 m.
Regions:
Piedmont 2 to 5 cm to the west, 5 to 7 to the east, more abundant in the Alessandria area and to the east of Novara.
Lombardy from 7 to 11 cm in the west, 7 to 15 cm in the center-east, but compressed and melted by the rain that will replace the snow at the end of the episode. Between 6 and 9cm in Milan.
Trentino valley floor: 25 to 30 cm, South Tyrol, 20 cm. Aostano valley floor: 15-20cm. Liguria: from 15 to 35 cm in 400-600 m. Veneto: from 10 to 30 cm in the foothills, even less than 5 cm in the lower level due to rain, Friuli same situation.
TREND: Variability Tuesdays and Wednesdays throughout Italy with frequent rains in the northeast and in all regions of the Tyrrhenian, although intermittent and accompanied by increasingly fresh Libeccio winds, which will also bring stormy situations and more snowfall in the central-eastern Alps more beyond 400m.
SURPRISE: between New Year’s Eve and New Year’s Eve possible (40%) return of snow on the northwestern plains due to the formation of a Mediterranean disturbance, after the contrast of the cold air that comes from the west and the soft air that rises from the south, Here is the map that illustrates the expected situation on New Year’s Eve, in green the snow:
Weather situation LIVE:
>>> Italy Weather Radar (rain)
>>> Italy visible satellite (during the day)
>>> Infrared satellite (even at night)
>>> Lightning and storms in progress
>>> LIVE weather stations
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