French Wildfire Created a Monster Cloud, Unleashing Lightning that Ignited More Fires
The rare fire-driven thundercloud produced lightning and erratic winds, forcing firefighters to confront new outbreaks as the blaze spread beyond the original fire.
- French firefighters are battling a rare pyrocumulonimbus cloud generated by massive wildfires in the Gironde region, creating a violent weather system that threatens to accelerate flame spread.
- The blaze has scorched more than 42,000 hectares and forced 220,000 people to evacuate in Gironde, with experts warning the fire is being driven by a unique 'fire cloud' phenomenon.
- Erratic winds and dry lightning from the cloud ignite new fires beyond the perimeter, according to National Firefighters Federation officials, spreading in every direction unlike standard blazes.
- President Emmanuel Macron met with his cabinet on Monday to address the crisis, stating Bordeaux will not be evacuated despite the fire now seven miles from the city.
- Climate change is attributed to extreme conditions enabling these violent clouds, according to the Copernicus Climate Change Service, as scientists warn back-to-back heatwaves will make them increasingly common across Europe.
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The massive wildfire in France has caused a unique and extremely rare weather phenomenon – pyrocumulonimbus. It is a storm cloud that is formed due to the extreme heat of a raging fire. At high temperatures, smoke, ash and water vapor rise high into the atmosphere, where a storm cloud forms. Such clouds can produce lightning, and sometimes hail and rain. But the most dangerous are the new winds that can spread the fire in unpredictable direction…
Associated Press News
French wildfire created a monster cloud, unleashing lightning that ignited more fires
A wildfire in southwest France grew so powerful that its towering smoke column became a thunderstorm, generating lightning that struck the ground and ignited new fires beyond the original blaze, French officials said.
What are fire clouds or pyrocumulonimbus? How they formed over France's wildfires — Explained
National Firefighters Federation of France (FNSPF) said the giant wildfire in the country's southwest had generated a pyrocumulonimbus — a phenomenon they described as never before observed in France.
leprogres.fr
A phenomenon that has never been observed in France was created on Friday 24 July in the Gironde sky: a pyrocumulonimbus, or "fire thunderstorm". This cloud, generated by the megafire raging in the department, has the peculiarity of triggering, of itself, new fires by projecting embers on the ground.
Since July 22, 2026, a massive wildfire has been ravaging southwestern France, particularly the Gironde region, where more than 42,000 hectares have burned and over 220,000 people have been evacuated, according to the prefecture. At the heart of this megafire, authorities observed the formation of a pyrocumulonimbus cloud, a "firestorm," a rare phenomenon in France, the episode observed in Gironde being particularly intense.
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