The peak of the Indian summer arrives, but there is already a date for a clear refreshment
Temperatures soaring for the dates with dust in suspension, but the week will end with coolness and drizzles
BarcelonaTemperatures rose further this Wednesday, with very warm conditions for the time of year in the pre-coastal areas and inland. And in the coming days, thermometers will peak, and the first 30 °C of the year may be reached in the west and in the Ebro basin. We are talking about values between 7 and 12 degrees above the usual average for this time of year inland and in the Pyrenees. This advanced Indian summer is the result of a very warm air mass loaded with dust in suspension, driven from North Africa by the counter-clockwise rotation of a low-pressure system located between the Iberian southwest and the Canary Islands. The exception will be found on the coast, where, as has already happened in recent hours, thermometers will be considerably more restrained, and some fog or low clouds will appear, a result of the marked thermal contrast between the ambient heat and the cold sea water. However, by the end of the weekend, a significant cooling accompanied by rain will arrive.
Thursday: more heat and suspended dust
Temperatures will still rise further this Thursday, with very warm weather for the time of year. Most highs will range between 25 and 30 °C in the pre-coastal areas and inland. The highest values are expected in Poniente and in the Ebro interior, where the first 30 °C of the year can be reached. Heat more typical of late spring or early summer than of April.
However, on the coast, the mercury will be considerably more held back again due to the regulating effect of a still cold Mediterranean Sea. The thermal contrast between the cold water and the very warm air mass above us will cause the formation of new fogs or low clouds in coastal stretches. In the rest of the territory, the sun will dominate, with thin clouds and haze due to the presence of suspended dust.
Changes in sight
Temperatures will remain high until Saturday, but cloudiness will begin to increase on the first day of the weekend, and by sunset, the first showers may arrive in the Pyrenees and Lérida.
It will be the prelude to the arrival of a cold air mass that, starting Sunday, will open the doors to the north wind and a significant drop in temperatures. A cooling that will be accompanied by instability, as rain may reach practically any point between Sunday and Monday. In the Pyrenees, the snowline will gradually decrease to below 1,500 m. A significant change in weather that we will have to define.