330,000people
Total hectares burned in France (2026 to date)
100,000 ha, described as unprecedented
Gironde single fire
42,000 ha and still spreading as of July 28
People evacuated in France
220,000 from Gironde alone, 30,000 in Landes
People evacuated in Spain
79,000 evacuated, 30,000 ordered to shelter in place
Firefighters injured in France
93 confirmed casualties on the Gironde front
Spain's Avila fire
50,000 ha, the largest single fire in Spanish history
Fourth heat wave of summer
Spain entered its fourth consecutive heat event July 27
The Fire That Generates Its Own Weather
The Gironde blaze has produced a pyrocumulonimbus, a phenomenon French fire chiefs say they have never seen before in France. A pyroCb is a towering thundercloud that forms directly above an intense fire when super-heated air rises so fast it drags water vapour from the canopy above, then freezes it into ice crystals kilometres up. The result is a cloud that generates its own lightning, its own downdraft winds, and its own micro-tornadoes, making the fire below erratic and almost unmanageable. Captain Nicolas Braz of the Gironde firefighting unit described it to AFP as a monster. NASA's Aqua satellite captured the pyroCb over Bordeaux on July 24. The French government has deployed the Airbus A400M Atlas military aircraft as a large air tanker, carrying up to 20 tonnes of fire retardant per sortie, a response that has never been needed at this scale before.
France's nuclear deterrent infrastructure is at risk. Factories producing and fuelling France's M51 submarine-launched ballistic missiles are located in Le Haillan and Saint-Medard-en-Jalles, both in Gironde. Both towns were among those pre-emptively evacuated by the French government. Officials declined to comment on specific contingency measures but confirmed the sites had been assessed.
How the Climate Made This Possible
France has seen 100,000 hectares burn in 2026 already, described by Prime Minister Sebastien Lecornu as unprecedented. The EU's Copernicus Climate Change Service recorded June 23, 2026 as the hottest day in European records dating to 1947. Successive heat waves have parched the Atlantic pine forests of the Landes and Gironde, regions that burned badly in 2022 and have not recovered enough canopy moisture to resist a second extreme season. Spain's Avila province has been in emergency drought since April. French president Emmanuel Macron convened a crisis cabinet meeting on July 28, with Prime Minister Lecornu attributing the disaster plainly to climate change. Spanish Prime Minister Pedro Sanchez visited affected zones in Valencia and called the Avila fire a historic catastrophe. It is Spain's first declared national wildfire emergency.
A pyrocumulonimbus cloud can reach 12 kilometres in altitude, above the level of commercial flight paths. It produces dry lightning, a lightning strike with little or no rainfall, which can ignite dozens of new fires simultaneously kilometres from the main front. Emergency managers in Gironde confirmed at least three satellite ignitions in 48 hours, each requiring a separate aerial response.
The Roads, the Rails, and the Evacuees
The A63 motorway south of Bordeaux remained partly closed on July 28 as the fire encroached on both sides. Rail services south of Bordeaux were suspended on all routes except the line toward Toulouse. French civil authorities opened exhibition centres, sports halls, and school gymnasiums across the region as emergency shelters. An estimated 4,000 more people on the Atlantic coast were ordered to evacuate on the morning of July 28 as temperatures began to climb again ahead of a new heat pulse forecast for July 30. German chancellor Friedrich Merz confirmed Germany is sending additional Canadair and DASH aircraft to assist. The EU Civil Protection Mechanism has activated aerial assistance from Portugal, Greece, Italy, and Sweden.
"This is a historic situation for France. We have never faced a fire that generates its own weather. Climate change has arrived, not as a forecast but as a fire.
"Sebastien Lecornu
The 2022 Gironde fires burned 27,000 hectares, at the time the worst in French post-war history. The 2026 Gironde fire has already burned 42,000 hectares and is still active. The forests are burning before they have fully regrown. Scientists from the Institut National de Recherche pour l'Agriculture refer to this cycle as compounding fire intervals, a feedback loop in which successive fires prevent recovery, leaving drier, less biodiverse woodland that burns faster and hotter the next time.
