Wildfires ravaged vineyards and farms in southern France, leaving one person dead and forcing residents to flee as flames shut roads and cut power to thousands of homes.
About 1,800 firefighters, assisted by aircraft, are working to control the outbreaks in the southwestern department of Aude. The fires have been fanned by winds gusting up to 70 kilometers (44 miles) per hour.
The fires ignited on Tuesday, burning 110 square kilometers (42 square miles), an area roughly the size of Paris, according to France Info. They quickly spread through farmland baked by recent heat waves, which turned crops into kindling and dried soils enough to uproot grapevines that are prone to catching fire.
Climate change is increasing the intensity of heat waves in Europe, the world’s fastest warming continent. That’s triggering more extreme weather events, including violent storms and wildfires, with the Mediterranean region particularly vulnerable.
Temperatures this week are set to climb several degrees above the long-term average across the region, topping 38C (100F) on Thursday, according to Meteo France. The mercury could inch even higher over the following days as the heat wave that’s searing Iberia moves east.
France issued amber fire alerts for seven departments along the Mediterranean coast, with authorities in Portugal and Spain also warning of dangerous wildfire risks across much of the peninsula.
The wave of hot air moving across Europe could be boosted by tropical storm Dexter as it moves across the Atlantic. The storm will degrade into a well of low pressure as it moves east, but weather models used by the U.K. Met Office and the European Centre for Medium-Range Weather Forecasts show it tracking north toward the U.K.
If that happens, it will likely bring stormy weather to the U.K., but the low pressure is expected drag a wave of warm air across the continent, said Alex Burkill, a meteorologist at the Met Office.
“Generally, there’s fairly good consensus that temperatures are going to be above average — and in some cases significantly above average — as we go through into next week,” he said.
The extra nudge from Dexter is forecast to fuel heat wave conditions across France and parts of the Mediterranean early next week. Temperatures in Toulouse could reach 42C on Monday, data from Atmospheric G2 show.
The heat wave could force Electricite de France SA to shut down nuclear reactors as rising river temperatures limit plant cooling, according to MetDesk meteorologist Richard Martin-Burton. French power prices on Tuesday rose to their highest since March on concerns about the impact of the heat on reactor output.
Copyright 2025 Bloomberg.

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