Archive · 27 Jul 2026
Fire Clouds Intensify France's Wildfires
Fire clouds, also known as pyrocumulonimbus or cumulonimbus flammagenitus, are thunderstorms created by wildfires.
They form when intense wildfires release a lot of heat, smoke, and moisture into the air.
This hot air rises quickly, cools down, and forms clouds.
If the updraft is strong enough, these clouds can turn into towering thunderstorms.
These fire clouds are dangerous because they can create their own weather, including strong winds and lightning, which can spread fires and make firefighting very difficult.
Scientists are paying close attention because these clouds can send a lot of smoke high into the atmosphere, affecting air quality and climate far from the wildfire.
Climate change makes these conditions more likely, but the clouds themselves are a natural result of very intense fires.
Pyrocumulonimbus clouds, or fire clouds, are thunderstorms created by wildfires.
They form when intense wildfires release heat, smoke, and moisture into the atmosphere.
These clouds can create their own weather, including strong winds and lightning, worsening wildfire conditions.
They are dangerous because they can spread fires unpredictably and ignite new wildfires.
Climate change increases the likelihood of conditions that facilitate their formation.
- Who
- Scientists and firefighters
- What
- Pyrocumulonimbus clouds, or fire clouds, forming over France's wildfires
- When
- During one of France's worst wildfire seasons in recent years
- Where
- Southwest France
- Why
- Due to intense wildfires releasing heat, smoke, and moisture into the atmosphere, creating a towering thunderstorm.
Climate Change Influence
Natural Phenomenon
Role of Climate Change
Climate Change Influence
Climate change increases the likelihood of conditions like intense heatwaves and droughts that facilitate the formation of pyrocumulonimbus clouds.
Natural Phenomenon
Pyrocumulonimbus clouds are natural phenomena driven by the intensity of wildfires, not directly caused by climate change.
- Definition
- A pyrocumulonimbus, or fire cloud, is a thunderstorm created by a wildfire rather than by the sun heating the Earth's surface.
- Formation
- Formed from intense wildfires that release heat, smoke, and moisture into the atmosphere, creating a towering thunderstorm.
- Danger
- They create their own weather, producing strong winds and lightning that can spread fires unpredictably and ignite new wildfires.
- Impact
- Can worsen wildfire behavior by generating powerful winds, severe weather, and additional hazards for emergency responders.
- Observation
- Rare but documented during significant wildfire events, including recent wildfires in France.
- Climate Change Role
- Increases the likelihood of conditions that facilitate their formation, such as intense heatwaves and droughts.
