Firenado kicks up during wildfire

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Portugal - Firefighter Vitor Hugo captured a 'firenado' on October 7 in Arganil, Portugal.

Courtesy: Vitor Hugo

The phenomenon, which is also commonly known as a fire devil, or fire whirl is a whirlwind induced by a fire and often made up of flame or ash. They usually start with a whirl of wind or smoke.

At least 36 people died in wildfires raging through parched farmlands and forests in Portugal this year.