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Meteo: WINTER 2020/2021, will it be a Season with SNOW until the PLAINS? Here’s the long-term screening for Italy
WINTER 2020/2021: snow to the plains?There are still a few monthsWINTER but, thanks to climate projections and the behavior of some atmospheric figures, we can begin to get a general idea of the type of season that awaits us. Will it be a season with SNOW to the plains? Obviously, predictions cannot be made at such a long distance, especially in the Name, what we can tell you is a trend in rainfall and temperatures based on official season cards.
According to the latest updates from the european center, in general, during the cold season (at least in the initial part) we will have to deal with an anomaly in the temperature range of approximately + 1 ° C (as we can see from the map below) compared to classic reference averages. For the time being, therefore, winter could turn into in the line of the last seasons, also due to ongoing climate change which sees a change over time and a constant increase in thermal values.
the rain they should go out instead slightly above average in much of the country, thanks to the continuous influx of more humid and unstable currents that arrive from the Atlantic, especially in December. With that said, however, there is one factor that could literally turn the tables: We are talking about the Polar Vortex.
It’s about a large low pressure area what a semi-permanent station on it North Pole and within which allcold air that is continuously produced in the Arctic ice sheet and which finds its way out through the depression centers heading south and then to the Mediterranean (and Italy), driving bad weather and a drastic drop in temperatures. the behavior of the polar vortex it’s not always the same and the cold season fate in fact they are in your hands movements:
– if it is strong and compact, the cold is confined to the North Pole, reason why in Italy A stable climate with high pressures and frequent gentler air attacks is to be expected.
– However the The vortex can sometimes literally dividing into two or more parts, moving with its load of very cold and unstable air to the south. In this case the probability that waves of frost and snow will also reach our Peninsula would increase considerably.
On what does this second and more interesting possibility depend? The cause of this crack of the Polar vortex you must search in the entry of much warmer air into the upper atmosphere, in technical terms stratagem.
Is it the right time to experience an old-fashioned winter with snow at low altitudes? We will see it in the next updates.
Temperatures up to + 1 ° C compared to reference means
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