Thunderstorms, some of which may be locally strong, are expected to begin in France on Tuesday evening, according to the Météo-France weather service. These storms are set to move across several regions this week as the southern part of the country cools down from a recent heatwave. The forecast indicates that thunderstorms will affect an area stretching from the eastern side of the Pyrenees to Switzerland on Tuesday evening and into the night of Tuesday to Wednesday. At this point, the weather situation is at a yellow alert level, and an orange alert—indicating a higher risk—could be issued for some areas in the Centre-East of the country. The storms are expected to bring strong gusts of wind, potentially reaching 80-100 km/h, and could include hail in parts of Auvergne, Franche-Comté, and Rhône-Alpes. Heavy rainfall is also likely in regions affected by the thunderstorms between Tuesday evening and Wednesday morning. On Wednesday, more thunderstorms are predicted along the Mediterranean coast, in the Pyrenean and Alpine mountain ranges, and extending toward Provence and Corsica. This pattern of instability is expected to continue into Thursday, with the possibility of significant rainfall in the Southeast of France. Temperatures are expected to gradually cool starting Wednesday, following a period of extremely high heat in the southern part of the country. These high temperatures followed a "hottest summer" ever recorded in France, which included a record 53 days of heatwaves. Seasonal temperatures are expected to return by the end of the week, though more weather disturbances are likely. France set a new national heat record for September on Sunday, with a temperature of 40.3°C recorded in Lavaur, Tarn. This surpassed the previous record of 40.2°C, which was set in Pissos, Landes, on September 12, 2022. In the context of global warming, late September heat events are becoming more frequent and more intense, according to Météo-France. This new record follows an already extreme summer for the country.