France’s wildfires create ‘fire clouds’: What is this weather phenomenon and how dangerous is it??

Wildfires near Bordeaux, France, produce pyrocumulonimbus, or fire clouds.
Pyrocumulonimbus creates its own weather system with strong winds and lightning.
This phenomenon is new to France and complicates firefighting efforts.
Over 10,000 people were evacuated from the Gironde region around Bordeaux.
President Emmanuel Macron said one fire in southwest France was contained, but a larger one near Bordeaux persists.
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