How is hail formed?

Updrafts of at least 24 miles per hour are required for hail formation. The stronger updrafts make larger hailstones.A water droplet is picked up by an updraft. It get carried to where the temperature gets below -91 degrees celcius. When it falls out of the sky it could get picked up again by another updraft and each time it will add another layer of ice making it bigger. A hailstone can be as big as a coconut at the size of 125 mm. Also a hailstone can be as small as a pea at the size of 5-10 mm. Hail stones fall from cumulonimbus clouds. The biggest hailstone that ever fell was in Gopaljing, Bangladesh in 1986 and weighed 1 kilogram each. They were as big as a melon.

Isabel
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How Is Hail Formed?

Hail is formed when it is caught in a updraft of a thunder storm. Hail is formed in a thunder storm. As the rain drop goes up into the freezing level (1 degree celcius) it freezes. It then gets caught in the down–draft where it goes down the cloud and picks up another layer of water. The particle of water and ice gets caught in the updraft and is taken higher into the cloud where it freezes. This keeps going until it turns into a ball of ice. After it has repeated those steps it will get too heavy and it will fall down to Earth. That is how hail is formed.

Facts
Hail is very dangerous for any man or beast in the open for it can get very large. It also can cause houses being damaged and lots of money has to be spent to fix the problems. In Calgary 1981 July 28th a 15 minute storm caused $100 million dollars damage. This is how bad hail can get. If you find a hailstone break it open and you will see layers of ice. The layers show how many times the hailstone went up and down. If there were six layers it would have gone up and down six times before it hit the ground.

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By Taela