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This week time offers us a breathing of the scorching heat we have had to face during the first half of the summer, but this truce brings, again, an important risk of storms. In the center of this new stormy episode is, once again, the Mediterranean coast.
Storms come back. The arrival of a new trough has put on alert To many meteorologists. The reason is in the possibility that its arrival unravels important storms in the Mediterranean basin, storms that could bring with them the arrival of hail and risk of flooding in some areas where it is expected to fall 30 mm in a matter of one hour.
The polar jet and a very hot Mediterranean. The main cause of the storms would be the arrival of the trough driven by a polar jet especially wavy during these days. These undulations would bring with them a mass of cold air in height, which when reaching the Mediterranean basin will interact with the warm air of the region, facilitating the appearance of convective clouds, according to Experts explain.
The worrying thing about the situation lies in the combination of two circumstances. On the one hand, we find a trough that was recently described as “anomalously intense for the time”, In words of the physicist, disseminator and researcher at Aemet JJ German. On the other, a Western Mediterranean Sea at a much higher temperature than is usually common.
As of Wednesday. The resulting storms are expected to be especially intense in Wednesday’s days and during the early hours of Thursday. The forecasts talk about rainfall between 30 and 40 mm In an hour, but the possibility of even more intense rains is not ruled out, which implies the possibility of floods in areas such as ravines and ramblas.
Important risk. The State Meteorology Agency (AEMET) has issued A series of notices related to these episodes that will be added to the notices that have been common, associated with the maximum summer temperatures. For now, orange notices for important risk are concentrated on the day of Wednesday 23, although we will have to wait for Know the evolution of the situation during Thursday.
On Wednesday, almost all of Catalonia will be under notice for rains and storms. It will also be the Aragonese and Navarro Pyrenees, and other areas of Aragon and the province of Castellón. Orange notices, due to important risk, will also affect part of the provinces of Girona, Barcelona, Tarragona and Castellón. To this we will have to add the risk of Rissagas on the island of Menorca.
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Change in the trend? The situation seems to be improving on Friday, but even during the day They might be expected instability in some areas. The models indicate that after the storm, during the weekend, stability will arrive and with it could return the high temperatures. However, we will still have to wait to know in detail the evolution of the atmospheric situation.
Image | ECMWF
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