Roberto Brasero gives the date of the arrival of heavy rains to Spain and puts our country on alert: It will be an autumn weather warning

Spain faces a significant shift in weather conditions this week, with heavy rains and a sharp drop in temperatures set to impact much of the country. According to the State Meteorological Agency (Aemet), the transition begins on Tuesday, September 8, as a new rain front moves through the region. This change marks the end of a prolonged heatwave that has gripped Spain for several days, bringing record-breaking temperatures across the nation. The arrival of the rain front will bring substantial rainfall to the northwest, particularly in Galicia and the Basque Country, with heavier precipitation expected on Wednesday. By Thursday, the Mediterranean and Balearic regions could experience intense thunderstorms. Alongside these changes, temperatures are forecast to drop significantly, potentially falling up to 10 degrees Celsius below current levels. Roberto Brasero, a well-known meteorologist from Antena 3, has highlighted the coming changes in his recent forecasts. He noted that while Tuesday will remain warm, with temperatures exceeding 30 degrees Celsius in many areas, a noticeable cooling trend is anticipated starting Thursday and continuing into Friday. In Galicia, maximum temperatures are expected to fall below 25 degrees Celsius, while parts of the western peninsula will see temperatures slightly lower than usual for this time of year. Meanwhile, temperatures in the Mediterranean, Strait of Gibraltar, and Canary Islands will remain above average, with some areas possibly reaching up to 38 degrees Celsius in Gran Canaria, 39 degrees Celsius in Murcia, and 40 degrees Celsius in Cordoba. Brasero emphasized that the rain front will begin its impact on Tuesday, affecting Galicia and Asturias initially before moving northward. He predicted that afternoon thunderstorms might occur in the Iberian System and Pyrenees by the end of the day. On Wednesday, the rain is expected to intensify and spread further across the country, beginning with central and northern peninsular regions before extending to the Mediterranean by Thursday. According to Samuel Biener, a meteorologist at Meteored, this weather pattern represents the first generalized instability episode of autumn in Spain. The combination of a significant temperature drop and heavy rainfall aligns with typical early autumn patterns. The temperature decline, already noticeable today, will become more pronounced on Wednesday, with maximum temperatures dropping between six and ten degrees Celsius in large parts of the inland peninsula. The drop will be especially marked in northeastern areas such as La Rioja, Navarre, Aragon, and the interior of Catalonia and Valencia, along with the Iberian system. This temperature change coincides with rain and thunderstorms from Tuesday to Thursday, with potential for locally heavy precipitation. Galicia, Catalonia, Valencia, and the Balearic Islands are among the regions expecting stronger showers, which could exceed 80 liters per square meter in some areas, with certain scenarios predicting over 100 liters. These rains may be accompanied by hail and strong wind gusts. Galicia will be one of the first regions to feel both the arrival of the rain and the temperature drop, experiencing a decrease of between six and eight degrees Celsius. The most significant temperature change is expected on Wednesday as the cold air mass advances over the Iberian Peninsula. Maximum temperatures will generally drop, with some areas losing between six and ten degrees Celsius. The temperature drop will be particularly noticeable in the northeast and parts of the Iberian system. In the northern plateau, maximum temperatures could fall below 25 degrees Celsius, while the Cantabrian region will see temperatures ranging between 20 and 22 degrees Celsius. The hottest temperatures will largely be confined to southern parts of the peninsula. Additionally, the trough will contribute to the reactivation of precipitation upon encountering an exceptionally warm Mediterranean Sea, with temperatures near 30 degrees Celsius. Biener explained that this extra energy in the Mediterranean can lead to intensified rainfall when instability arrives. Therefore, Catalonia and the Balearic Islands are identified as areas with the highest risk of very strong or even torrential rains. The meteorologist pointed out that some areas could receive more than 80 liters per square meter, with certain scenarios anticipating amounts surpassing 100 liters. The contrast in temperatures will be particularly striking following an unusually hot start to September. Biener highlighted that the real anomaly lies not in the temperature change occurring this week but in the preceding extreme heat. Recently, Spain recorded a temperature of 45.7 degrees Celsius in Huelva, setting a record for September in the country. While entries of troughs and colder air masses are typical during this season, they will result in a temperature drop of 10 degrees Celsius or more in some areas. The drop will be felt on Tuesday in the north, center, and west, becoming widespread on Wednesday. However, this does not indicate a cold environment, as temperatures in the center and south could still reach 28 to 30 degrees Celsius or higher.