A 'fire cloud' is a type of cloud that forms above intense wildfires. It happens when the heat from the fire pushes smoke and moisture high into the air, creating a cloud that can even produce
Dyma gyfieithiad o'r testun i'r Gymraeg: Wrth i Ffrainc a Sbaen ymladd rhai o'r tanau gwyllt gwaethaf mewn hanes diweddar, mae arbenigwyr yn rhybuddio am ffenomen brin a allai wneud...