Thunderstorms, downpours, hailstorms… Atmospheric phenomena that we have recently learned to know all too well, atmospheric phenomena that, as we know, will reappear strongly at the beginning of the week, highlighting signs of the imminent seasonal climatic change. Yes, that’s right, in just a few hours we will officially be in Autumn.
Meteorological autumn, it’s true, but that doesn’t change the fact that at the hemispheric atmospheric circulation level there are the first, convincing signs of the new season.
What is it about? Well, just take a close look at any forecast map and you will realize that something is changing. In fact, more than something, already in the very early stages of next week.
Because if it is true that the Atlantic effects on us will be limited - by the presence of the African Anticyclone – it is equally true that in Western Europe there will be quite a show.
Or quite a mess, depending on your point of view. The first, true, North Atlantic depression will hit between France and the Iberian Peninsula, triggering a fully autumnal deterioration.
And it will need to be followed very closely, because despite international calculation centers continuing to suggest a significant anticyclonic protection just a bit further east – therefore in Italy – surprises could be just around the corner. Projecting ourselves a bit further in time, we can tell you that around September 10th, further autumnal signals can be seen, and if we want to be precise, they are much more convincing signals.
That is, an Atlantic perturbation flow capable of gaining ground towards the south, direction Mediterranean, supported by another deep oceanic depression located near the British Isles. And here we are at the real seasonal signals, we know in fact that the Atlantic Ocean is the main actor of the European atmospheric circulation.
Beyond La Niña, which we will have the opportunity to talk about, beyond other climatic patterns – which will be discussed shortly – beyond the Polar Vortex - this is more important for autumn-winter outcomes – what matters most is the Atlantic. So no, we do not intend to underestimate the signals coming from the west-northwest, just as we do not intend to underestimate the thunderstorms of the coming days because they will be nothing short of violent.
But that’s another story, already extensively covered.
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