The alert affects almost all of Spain and begins this Wednesday, August 11, until next Monday, August 16.
The State Meteorological Agency (AEMET) has issued a special warning this Monday for the first heat wave of the summer that will affect all of Spain, except the Cantabrian area and a good part of Galicia, from this Wednesday, August 11 until next Monday 16.
As the state agency has detailed in its notice, yesterday Sunday, due to the strong insolation typical of these dates, a generalized rise in temperatures began.
This ascent will continue the next few days favored by the entry through the south of the peninsula of a very warm air mass, of African origin, which will intensify and extend to most of the Peninsula and the Balearic Islands, except the Cantabrian area and a good part from Galicia, could reach the Canary Islands next weekend. As a consequence, a progressive increase in temperatures, minimum and maximum, is expected, giving rise to a heat wave.
The AEMET has announced that on Wednesday temperatures will begin to reach around 40ºC in areas of the valleys of the southern peninsula and will exceed 35ºC in much of the rest of the south and center of the peninsula and in areas of the Balearic Islands.
On Thursday, a rise in temperatures will be observed in the east of the peninsula and in the Balearic Islands, with little change in the rest, which is likely to exceed 40ºC in the same areas of the previous day and also in the interior of the northeast of the peninsula and points in the interior of Mallorca.
The days of greatest intensity of this heat wave will probably occur between Friday and Sunday, when temperatures will exceed 40ºC in large areas of the southern half, east and center of the Peninsula and in parts of the Balearic Islands, it is even probable that reach or exceed 42-44ºC in areas of the valleys of the southern half and in the Ebro valley and 35ºC in practically the rest, except in the Cantabrian and northwest of Galicia. In areas with very high maximum temperatures, night temperatures will also be high, the minimum temperatures may exceed 24-25ºC.
Finally, as of Sunday 15 and especially Monday 16, it is likely that a decrease in temperatures will begin in the west of the peninsula, although the increase in uncertainty in the forecast for those days must be taken into account.