The worst of the heat spell is coming to Spain: extreme day and night temperatures in these areas

The The episode of high temperatures that Spain is experiencing will reach its peak between Wednesday and Thursday, while following the same stable environment tonic in general. There will be slightly cloudy skies in the morning with development of clouds of diurnal evolution from noon, which again in the surroundings of the System, Iberian and Pyrenees can lead to stormy showers.

It is not ruled out that these showers and storms affect other mountain areas in the center and east of the Peninsula. The Levante wind will continue to blow with intensity and there will be no changes and temperatures on those two days will drop slightly in the north, but will remain unchanged in the rest of the country.

“The intense heat of midsummer will continue, especially in the west, center and south of the Peninsula, and will even touch 40ºC in some points of the Guadalquivir valley”, explains Rubén Del Campo, spokesman for the State Meteorological Agency (Aemet ), which observes that There will be “many” tropical nights, in which the minimum does not drop below 20ºC in Andalusia, Extremadura, western Castilla-La Mancha and on the Mediterranean coast.

In the Canary Islands there will be a lot of heat, along with suspended dust, and will exceed 36 to 38ºC in southern parts of Gran, Canaria and Fuerteventura. In short, the AEMET spokesperson estimates that maximum temperatures will be between 5 and 10 degrees Celsius above normal in much of the west, center and northeast of the Peninsula as well as in the south.

The thermal anomaly too it will be between 5 and 10 degrees above normal in the interior of the Canary Islands. Only the Cantabrian coast will get rid of these hot temperatures, where on Wednesday and Thursday the atmosphere will remain cool, with maximums between 20 and 23ºC.

As of Friday, it is possible that there will be a new increase in instability that will lead to the development of evolution clouds in the interior of the Peninsula, where they will produce showers accompanied by storm, especially in mountain areas and the surrounding areas.

The temperatures they will descend although the heat will continue, especially in the Ebro, Guadiana and Guadalquivir basins, although this heat will already be more moderate. In the Canary Islands, the thermometers will mark normal for this time of year from Friday, when the trade winds will return to the archipelago and the normal temperatures on the islands will recover.

Hot nights and mortality

The excessive night heat and the duration of nights with high temperatures constitute “a direct cause of mortalityThis is concluded by an international study coordinated by the USC researcher Dominic Royé and in which for the first time the influence of these variables on mortality in southern Europe is addressed.

The research published in the journal Epidemiology collects data from 11 cities located in Spain, Portugal, France and Italy. In the Spanish case, the study detects that between 2001 and 2014, high night temperatures increased mortality by 26% in Madrid; 14% in Bilbao; 13% in Seville; and 6%, in Barcelona.

“The impact of the thermal environment on people’s health, quality of life and performance is one of the most delicate public health problems linked to global climate change“, explains Dominic Royé.

High nighttime temperatures can produce “prolonged heat stress”, which is aggravated “by preventing the human body from resting at night,” he adds. The aspects that most affect hot nights are sleep and rest. In this way, Royé points out that “heat can cause alteration and deprivation of sleep due to the necessary processes of thermoregulation”.

The study found evidence that daily mortality is associated with hot night temperatures that exceed 20ºC and, to a lesser extent, to the duration of those hot nights in all the countries analyzed.

“It is important to highlight that the nocturnal effect on mortality is independent of daytime temperatures“Explain the researchers. Specifically, it was shown that high values ​​at hot nights are associated with an increase in cause-specific mortality.

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