Hailstones are initially formed high up in the sky, like normal raindrops, when moisture freezes onto a tiny grain of dust. Rain is only liquid because it is falling through warm air.
What makes hailstones different is that there were strong upcurrents of air that pushed the raindrops back up into colder air, where they grew another layer of ice. The larger the hailstone, the more often it was blown back up into the cold air.
skip to main |
skip to sidebar
Nuggets of useless information that it would be a crime not to share with the universe!
