How 'fire-generated thunderstorms' make wildfires more deadly
Summary
Wildfires in the Bordeaux region of France have created strong "fire-generated thunderstorms" known as pyrocumulonimbus clouds. These clouds form when intense heat from the fires lifts smoke and moisture high into the air, causing dangerous weather that can spread the fires further.Key Facts
- Pyrocumulonimbus clouds are thunderstorms created by the heat of wildfires.
- The fires in Gironde, near Bordeaux, have forced tens of thousands of people to evacuate.
- These clouds can spread embers far, making wildfires harder to control and start new fires with lightning.
- France is experiencing record heatwaves and dry conditions that increase wildfire risks.
- This fire-cloud phenomenon has not been seen before in France but occurred during Australia's 2019-2020 bushfires and California's 2021 fire season.
- Wildfires in Gironde may burn for many weeks and could take months to fully put out.
- Climate change is expected to make such extreme fire weather events more common.
- Authorities warn of another heatwave in France with temperatures possibly reaching 40°C (104°F), worsening wildfire dangers.
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