Key Points

• From August 10, 2024, to August 13, 2024, amid a heat wave, Météo-France issued an orange alert for 10 departments (covering 95.3% of the region’s resident population). Of these, 6 were under an orange alert starting August 10 (Ain, Drôme, Isère, Savoie, Haute-Savoie, Rhône) and 4 starting August 11, 2024 (Allier, Ardèche, Loire, Puy-de-Dôme).

• Météo-France had classified 6 departments (Ain, Drôme, Isère, Rhône, Savoie, Haute-Savoie) as under orange alert for August 13, 2024.

• The orange alert was lifted for all departments in the region on the morning of Wednesday, August 14, 2024.

• The regional analysis of emergency care utilization indicates that the iCanicule composite health indicator (including hyperthermia, dehydration, and hyponatremia) remained stable on August 13, 2024.

• Since Wednesday, August 14, 2024, and the end of this heatwave, the iCanicule composite health indicator has been decreasing for emergency care use.

• Heat poses a health risk to the entire population. The observed health impacts underscore the importance of implementing preventive measures to mitigate the effects of heat.