"Fire tornado" cloud seen in France for first time

For the first time, French authorities and firefighters have observed a "fire cloud" — a rare and dangerous weather phenomenon created by an intense wildfire. The cloud, known scientifically as a pyrocumulonimbus, forms when extreme heat from a large fire pushes smoke and ash high into the atmosphere. Experts say it is a sign of a "quite extreme" forest fire. Researchers warn that such clouds can generate their own wind and lightning, making the fire even harder to control.