What Is Hail?

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Hail stones can kill you
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Hail is a precipitation of frozen ice
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Hail is a precipitation of frozen ice pellets that are sometimes formed during a thunderstorm. The conditions required for the precipitation of hail are strong winds constituting a thunderstorm cloud (cumulonimbus) and cold upper strata of the atmosphere below freezing point.

In such a situation water vapor present in the air when it reaches the condensation point the resulting water droplets do not fall to the earth but are blown by the winds in higher and colder stratum of the atmosphere where they collide with each other and form a larger super cooled droplet. These droplets then freeze into hail and the process continues until the weight of the frozen mass increases and it is precipitated in the form of hail.

Hailstones vary in size from little ice pellet of 5mm to grapefruit size balls of 5-6 cm in diameter. Hails can damage standing crops, houses and vehicles; it is dangerous to walk in a hailstorm as some large hail stones fall to the earth with great velocity and can cause injury.

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