Météo-France placed 53 departments under orange vigilance for heat after temperatures hit a record 40.2 °C in Montmorillon [1].
This event marks a potentially historic heat episode for France, occurring with unusual precocity and intensity. The rapid escalation of temperatures threatens public health and puts significant pressure on the national electrical grid.
The record temperature of 40.2 °C [1] was recorded Thursday in Montmorillon, located in the Vienne department. This measurement broke the previous station record for the area. Local forecasts indicated that temperatures could reach up to 40 °C [7] in some regions, with sustained highs remaining near or above 37 °C [8].
Weather officials have expanded the scope of their warnings. While an earlier alert saw 26 departments under orange vigilance [3], the latest update has increased that number to 53 [2]. These measures come after a series of escalating warnings throughout May. On May 23, the department of Finistère was placed under yellow vigilance [6], and by May 25, 20 departments were under yellow vigilance due to the record precocity of the heat wave [5].
Earlier in the month, smaller-scale alerts were issued, including one instance where eight departments were placed under orange vigilance [4]. The current wave is significantly more intense than those early movements, resulting in the highest level of alert for a larger portion of the country.
Authorities continue to monitor the situation as the heat persists. The orange alert signifies a high risk to the population, particularly for vulnerable groups, and requires increased vigilance, and preventative measures across the affected departments.
“Temperatures hit a record 40.2 °C in Montmorillon”
The arrival of 40 °C temperatures in June, following a series of record-early warnings in May, suggests a shift in the seasonal timing of extreme heat in France. The scale of the current orange alerts, covering 53 departments, indicates a geographic intensity that exceeds previous early-season fluctuations, potentially stressing infrastructure and public health systems before the traditional peak of summer.
