Temperatures are going to rise a lot after the last cold wave. You can thank the “surada”

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If a few days ago we woke up with headlines full of the word “nortada”, the meteorological term of the moment is now just the opposite ‘surada’. And it is that from Palm Sunday the temperature will rise of the peninsula until reaching heights more typical of the end of May and the beginning of April. It will not last long; on the contrary, it is a “meteorological trompe l’oeil” that will put us in a carousel of temperatures and end with rain for much of the week. Let’s see why.

A surada? In recent times, after a few years using technical terms (explosive cyclogenesis, polar vortex, etc…) with a certain sensationalist spirit, meteorologists are returning to popular expressions that, although not well known throughout the country, are using in some regions with some regularity. These were the recent cases of ‘nortada’, ‘rissaga’ or, now, ‘surada’.

However, as on other occasions, it is nothing exceptional. It is the entry of an air mass with some warm characteristic (in this case temperature) with southerly component winds. Come on, it’s something that usually happens whenever “a cold front approaches from the west”. These types of fronts generate atmospheric dynamics that drag warm air to the north.

Retrotrajectories Domingoramos3

South winds? Another haze? Not really. They are warm winds and, due to the effect of the cold front, they come to us from the south. But, as explained in Meteored, in this case it is an air mass that is almost at our same latitude. That is to say, we can be calm on that side, the winds that will heat up Holy Week do not come from the Sahara.

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Temperatures more typical of the end of May. And when I say “warm up”, I say it because that will be the most striking thing about this surada. After a few especially cold days, the temperatures in a good part of the country will go to levels that we do not usually see until the end of May. We are talking about 28 degrees in Seville, 26 in Badajoz, 24 in Zamora or 25 in Santander. Of course, this “intense heat” will not extend to the entire Holy Week.

A meteorological trompe l’oeil. As I said, the suradas are the result of the dragging effect generated by the cold fronts from the west. Although the Diego storm will barely affect us (it will only cause some problems in the north of the peninsula, but it will mainly impact France and the British Isles), the Evelyn storm will hit us hard. After the heat of Palm Sunday, the temperatures will drop again and the rain will come to pass through much of the week.

Image | Emilio Morenatti/AP

If a few days ago we woke up with headlines full of the word “nortada”, the meteorological term of the…

If a few days ago we woke up with headlines full of the word “nortada”, the meteorological term of the…

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