Ostrzeżenia, Fort de Barchon

5; high-temperature may threat public safety and/or damage infrastructure Take the necessary measures and strictly follow advice A heat wave with three consecutive days with an average maximum temperature of at least 35°C is expected, or at least one day with a maximum temperature of at least 40°C is expected. Bring yourself, others and, if possible, your personal belongings to safety and follow the instructions of the responsible authority.