On Sunday, April 27, 2025, France braces for a tumultuous weather day as Météo France placed 22 departments under yellow alert, primarily in the southeastern region of the country. The alert, effective from noon, highlights concerns over thunderstorms, floods, and even avalanches in certain areas.
The weather forecast indicates that while the northwestern half of France may enjoy some sunshine, the eastern regions, particularly in Occitanie and Provence-Alpes-Côte d'Azur, will likely experience significant storm activity. As per Météo France's update at 16:00, the number of departments on alert increased from 16 to 22, underlining the severity of the situation.
In Occitanie, particularly in Languedoc, unstable weather conditions are anticipated to escalate in the afternoon and evening. Thunderstorms are expected to affect the eastern part of the region, with the most active storm centers predicted to move through between 18:00 and 23:00. Areas such as the Gard, Cévennes, and Hérault will be particularly vulnerable.
By 22:00, rainstorms are forecasted to impact the Montpellier and Lunel areas. During the night, precipitation is expected to gradually move towards the central plains of Hérault and along the coast. Météo France warns that under the most intense storms, hail could be a possibility, with rainfall varying significantly from one municipality to another, ranging from 10 to 40 mm.
Meanwhile, in the Var department, the yellow alert for thunderstorms is set to take effect around 15:00 and will last until approximately 18:00. Local temperatures are expected to reach 20°C in Fréjus, 19°C in Saint-Tropez, and 18°C in Collobrières and Le Luc. Gusts of wind could reach up to 40 km/h along the Var coast, adding to the day's tumultuous atmosphere.
As for the rest of the country, temperatures are projected to rise to 18°C near the Channel, while areas from Gironde and Poitou-Charentes to the Belgian border can expect warmer conditions, ranging from 20 to 22°C. The lower Rhône valley will also see similar temperatures, with the rest of France experiencing a range of 18 to 20°C.
The weather conditions are not just limited to thunderstorms. A flood risk has been announced in eight departments, particularly in the far southwest and the Charente regions. Additionally, an avalanche alert is in effect in three departments, specifically in the western half of the Pyrenees and the Alpes-Maritimes.
As the day progresses, the weather is set to improve by Monday, April 28, 2025. The forecast suggests a return of sunshine, although clouds will still be prevalent. New rainstorms are expected to affect the northern parts of Gard, Cévennes, and Lozère during the afternoon. Maximum temperatures on Monday are anticipated to reach between 17°C and 21°C in the plains, providing a mild respite after the stormy weather.
Overall, the situation on April 27 serves as a reminder of the unpredictable nature of springtime weather in France. With varied conditions across different regions, residents are advised to stay informed through local weather updates and take precautions as necessary.