The first heat wave of the summer (the rise in temperatures last June did not reach this category in the end) will arrive this Monday and will last at least until Wednesday, with more impact in the southern half of the peninsula, where temperatures will reach at 44 degrees in the Guadalquivir valley. This arrival of very warm air has been announced for days, but it was not until yesterday that the State Meteorological Agency (Aemet) announced that the future weather situation has a very high probability of becoming, by extension, duration and intensity in the first real heat wave this summer.
The forecast is that maximums of 38 degrees will be exceeded in large areas of the interior of the peninsula, likewise, the thermometers could reach 42 degrees on Tuesday in Mallorca and 40 degrees in the southern half of the peninsula.
Maximum temperatures will be above normal across the board, with peak days on Monday and Tuesday, with tropical nights above 20 degrees and even locally above 25 degrees in the southeastern half, especially in the third southeast and the Balearic Islands.
At the moment a ridge – an extension of an anticyclone – located to the east of the peninsula around Tunisia induces a southerly component flow in the eastern half of the peninsula and the Balearic Islands, and is introducing a mass of air Saharan probably with suspended dust, which increases temperatures, as reported by Aemet.
In the coming days, the movement of the ridge to the west is expected to bring this mass of very warm air closer to much of the peninsula, except for the northwest and north, which, together with the stability and ‘high insolation characteristic of the time, will favor with 80 percent of probabilities this heat wave episode.
Temperatures will rise over the next few days and today Sunday it is likely to reach 40 degrees locally in the central part of the Guadalquivir valley, 36-38 degrees in areas of the southern plateau and interior of the Balearic Islands and 36 degrees in the Ebro valley.
During Monday, temperatures will also clearly rise in a large part of the peninsula and the Balearic Islands, with maximums above normal in a generalized way; 38 degrees will be exceeded in large areas of the interior of the peninsula and Mallorca and 40 degrees in areas of the interior of the southern half of the peninsula, it will even reach the 44 degrees announced in points of the Guadalquivir valley.
But it will be Tuesday when the most suffocating day arrives, when the thermometers are expected to once again set records for the period.
The intensification of the wind from the west and south-west will cause a new rise in the eastern peninsula and the Ebre valley, where, as in Mallorca, it could reach 40-42 degrees; on the contrary, that same day values ??will decrease in the west and north of the peninsula.
On Wednesday 12 July it is likely to cool down in the northern half and center of the peninsula, mainly in the Ebro valley, as well as in the Balearic Islands, but this will not happen in the southern third, where temperatures will continue to be very high.
As for the Canary Islands, it is likely that the Saharan air mass will also affect the archipelago from Monday or Tuesday, a situation that will lead to an episode of high temperatures that is still too early to determine whether or not it will form a wave of heat
During this episode of extreme heat expected for the next few days, the minimum temperatures will also be very high, with tropical nights in which the thermometers will not fall below the 25 degrees that have been announced.
This wave of heat rises when it has just been known that the planet has closed the warmest June ever recorded on a global scale, as the Climate Change Service announced on Thursday.