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LONG TERM WEATHER: SUDDEN WARMING, COLD in OLTRANZA and even SNOW for NEW YEAR’S EVE and BEFANA. CONSEQUENCES
Sudden stratificationWe all noticed, this year theWinter is turning out very dynamic, cold and full of surprisesas it hadn’t happened in some time. And the future prospects also look very interesting: the long-term forecasts, in fact, they also confirm the arrival of a cold until bitter end with the possibility of Name both close to New Year, both for him Befana.
Also, something unusual is happening over the North Pole, called in a technical term Stratwarming.
Let’s find out right away what it is and the possible consequences also in Italy.
Let’s start by saying that the latest updates available to us argue in favor of a series of cold waves already in the last days of 2020. Now the deterioration seems certain from Sunday 27, with strong snowfall on the northwestern plains: snow is also expected in cities like Cuneo, Torino, Milan, Varese me Bergamo, with more than 10/15 cm of accumulation at the end of the event. An unstable new momentum could break into Italy on New Year’s Day, with the risk of further snowfall in the Center-North, even down to very low altitudes.
Our attention shifts to North Pole where, along with the start of the new year, a sudden could trigger stratagem. With this term, in meteorology, we refer to an anomaly and intense heating of the stratosphere terrestrial, over the Arctic region, in the order also of 30-40 ° C in a few days. This anomalous heating of the stratosphere, once active, gradually tends to expand into the upper troposphere, with impact about him Polar vortex: it is not excluded, in fact, that you may derive your own from this division in various parts. In the past, the largest frost waves to hit the European continent, in 1929, 1963,1985, 2012 (just to name a few) are associated with this type of event.
At the moment, it is still too early to know whether or not there will be a breakout in the Polar Vortex. However, according to current data, the consequences for Italy in the month of January, already from Befana, With the’arrival of icy air masses, of arctic-continental extraction, which from the Siberian steppes could reach Italy, through the icy gust of winds from the northeastern quadrants: Bora, Tramontana and Grecale. In short, we may need to re-deal with the infamous Burian.
But we will talk about it again.
Stratwarming: warming of the stratosphere over the North Pole
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