The problem of heat arrival is not just the 40º planned by Aemet: also the “tropical nights”

Heat has come and with him a more annoying phenomenon than the high daytime temperatures: the so -called “tropical nights.” Bad news for those who have problems reconciling with heat. Tropical nights. The warm episode that this week is manifested on a good part of Spain threatens to bring maximum thermometers above 35º in various areas, even above 40º in areas such as the Guadalquivir Valley. However, beyond the maximum, There is another fact to pay attention: minimum temperatures. We talk about “Tropical nights“When the minimum night temperatures do not fall from the 20th Celsius. That will be precisely what happens in areas of the southern peninsula and in the Canary Islands throughout the week, according to the forecasts of the State Meteorology Agency (Aemet). According to Aemet In an informative note Dedicated to the warm episode, the minimum temperatures will rise throughout the week, more slowly and intense than the maximum, yes. The minimums above 20º will affect areas of the southwest quadrant and the Mediterranean coast, also extending to the Ebro Valley during Saturday. On the edge of the “equatorial night.” In fact, Aemet’s forecasts They anticipate minimums that could remain around 24th towards the end of the week in areas of Malaga or Cádiz. This implies that some areas are on the edge of the call “Equatorial Night”, Term that refers to the nights on which the minimums do not fall from the 25th. A anticyclone, and a Dana? But what is happening so that spring has ended so abruptly? Much of the fault has an anticyclone inside located on the waters of the Atlantic, around the Azores. The influence of high pressures will leave us a great atmospheric stability, explains Aemet, with “practically clear skies and high insolation.” But there is even more: from Wednesday, the appearance of a Dana between the Canary Islands and the Gulf From Cádiz I could drag with it a mass of warm, dry and with suspension dust, first to the south and then towards the peninsular center. The result of this would be the additional increase in the temperatures that we will see throughout the second half of the week. Notices for extreme temperatures. Thus, the agency has issued several notices for extreme temperatures for tomorrow Wednesday and for Thursday by maximum temperatures between 37º and 39º. Is there an end in view? The big question now is when this will end. And the truth is that it is still early to venture since uncertainty predominates towards the end of the week, says Aemet. According to Explain the agencyit is “likely that as of Saturday 31 the Dana will dissipate” and that instability in the peninsular northern increases, in turn giving clouds to reduce the failure of these days. In any case, we will have to wait to see if these predictions are confirmed. In Xataka | The reservoirs are almost 22% above the average of the last decade. There is an “but” important before celebrating Image | ECMWF

40º return to Spain

Last week, meteorologists They warned of a change in the trend Atmospheric, the arrival of heat, with an important rise in temperatures. As the days have advanced, the forecasts have not only confirmed the thermal ascent, they also seem to indicate that some more heat awaits us from the initially planned. Temperatures rise. The last week of May will be marked by the first warm episode of the year, with temperatures above the 35º Celsius in some areas of the southern peninsular. The meteorologist Mario Picazo, in eltiempo.eshe warned of the possibility that the thermometers reach 40º over the next few days. The State Meteorology Agency (AEMET) has issued An informative note To put ourselves on warning of the warm event we have ahead. In the note, Aemet warns of a “quite widespread and progressive” increase, which will leave during the days of Monday and tomorrow Tuesday temperatures between 36º and 38 in the Guadalquivir Valley and the 35º in the Guadiana. Up. The forecasts They point out that the episode will be deepened as the week progresses, being Thursday and Friday the days in which the most heat is expected (although uncertainty is high in the predictions towards the end of the week). Aemet points out that these days the maximum temperatures will be around 35º in the Northern Plateau, 37th in the valleys of the Ebro and the Tagus and 39º in the Bajo Guadiana. The Guadalquivir basin will be the most affected: temperatures of between 40º and 42º are expected. The exceptions. Although a good part of peninsular Spain and the Balearic Islands will witness this warm episode, there is an area that seems to maintain cooler temperatures. It is the Cantabrian and Northern Galicia area. North air currents will prevent the thermometers from triggering in this region. The Canary Islands are also expected to free from the episode, thanks to the Alisios winds. Yellow warning. In addition to the informative note, the agency has also issued The first yellow notices by maximum temperatures of 38º. It will be in force on Wednesday during almost the whole afternoon in the Sevillian countryside region and in the central depression of Lleida. Anticyclonic time The explanation to this sudden heat is simple and is on the Atlantic. It is an anticyclone, whose effects will be noticed in most of the territory. As experts explain, stability awaits at the atmospheric level with clear skies that will imply an increase in insolation and with it the increase in temperatures. According to Details AemetAs of Wednesday, a Dana located between the Canary Islands and the Gulf of Cádiz, will be responsible for the situation worsening on Wednesday. He will do it by dragging “a mass of warm, dry and with suspension dust, of African origin, first on Andalusia and Mar de Alborán and later on the peninsular center.” The first heat wave? Some They wonder now If we can talk about the first heat wave of the season. The answer, for now, is not. The answer, for now, is not. Although there is no precise definition of what a heat wave is, Aemet uses a defined criterion: It would be an “episode of at least three consecutive days, in which at least 10% of the stations considered registered maximums above the 95% percentile of its daily maximum temperatures series of the months of July and August of the period 1971-2000”. As experts explain, this week’s episode is not expected to meet the three temporal, spatial or intensity requirements that define a heat wave. In Xataka | The reservoirs are almost 22% above the average of the last decade. There is an “but” important before celebrating Image | ECMWF

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