The wind is blowing here and there in the sky. Which is hot and which is cold. As the hot and cold basat merged, the place became cold and the water continued to flow downwards. That is called rain. On the way to the rain, a cold blanket suddenly falls and the raindrops freeze and fall to the ground. These are called hailstorms. As far as I know , there is no explanation as to why there is hail . However, the cause of the extreme heat is thought to be.