France heat alert: 9 departments turn red as mercury hits 42C

French authorities have placed nine departments on red alert for extreme heat this weekend, as wildfires continue to rage across the country. Meteorologists forecast temperatures reaching 42 degrees Celsius in some areas, posing serious health risks and fueling existing blazes. Officials urge residents to stay indoors, drink water, and avoid strenuous activity during peak heat hours. The red alert, the highest warning level, signals an "exceptional" heat event that requires vigilance from the public and emergency services.