This Wednesday, maximum temperatures will rise in much of the Peninsula and the Balearic Islands, with Seville and Córdoba reaching 37 degrees, according to the State Meteorological Agency (AEMET). Only some isolated rain or storms are expected in the Cantabrian region, as well as in the Pyrenees and the eastern part of the Iberian System.
He Thursday It will be the hottest day. Large areas of the territory will exceed 34 degrees and 36 to 38 degrees will be reached in areas of the northeast, center and southern half of the Peninsula, for example in Madrid, Toledo, Granada or Zaragoza. In Seville, Córdoba, Jaén and points north of Teruel, it is likely that they will reach or exceed 40 degrees. In addition, tropical nights (minimum temperature equal to or greater than 20 ºC) will return to a good part of the south, central area, Ebro valley, Mediterranean coast and coastal areas of both archipelagos.
That day, a DANA will approach the Peninsula and will leave an episode of adverse storms throughout the weekend, according to the prediction of Meteored expert, Samuel Biener. The most complicated situation will occur in the interior and areas of the northern peninsula.
Currently, DANA is in the Azores, where it is leaving heavy rainfall. Biener remembers that The waters of the islands are about 2ºC above the average for these dates, a factor that favors the development of these intense downpours. Therefore, The “cold drop” advances through a warmer than normal Atlantic.
The expert mentions the Clausius-Clapeyron equation which states that For every degree Celsius of warming, the air can contain between 6 and 7% more water. The pocket of cold air will be led to the Peninsula by a subtropical jet, which will overlap with the polar one. Therefore, the DANA It could evolve into an isolated cold storm for a few hours.
This subtropical air mass will be loaded with moisture as it crosses an ocean that is warmer than usual at this time of year. “It will be first-class gasoline for storms of a certain magnitude to develop in several regions of Spain,” warns the expert.
Before its arrival, DANA will leave us with intense heat, haze and “rains of blood.” It is expected to reach the Peninsula between Friday and Saturday to be later reabsorbed by the polar jet. In turn, temperatures will drop across the board.
With this situation, Biener highlights that the conditions will be ideal for very intense storms to form with a high degree of organization. For now, the most complicated situation is expected in the interior of the peninsula and in northern areas. In addition to heavy downpours, other adverse phenomena may occur such as hail and sudden and violent gusts of wind associated with convective nuclei.