People in Birmingham!!! If you never notice, it just hail moments ago! So what is hail and why it hails?
Hail is only produced by CUMULONIMBI. If you pay attention in your geography class, your teacher will surely mention cumulonimbi. It is, in English, thunderclouds. It occurs when dust, insects (INSECTS!! JUS IMAGINE A COCKROACH IN HAIL!!), or ice crystals freezes into ice balls when contact with supercooled water. Supercooled water are water that is below freezing point but remains in liquid state. And you can find plenty within the cumulonimbi! The updraft will bring the ice balls up into the clouds. The more supercooled water it contacts, the larger it is! And when the updraft cannot support its weight, you will see ice cubes falling from the sky!
Raincoat is useless against these falling ice cubes, that why smart people buy umbrella! So this is the million dollar question!! Is hailing a sign of snowing??
Well, hail is actually a form of snowing! Snow forms if the air in a cloud is below freezing. The water vapour then turns to ice instead of rain and the tiny ice crystals stick together until they form snowflakes. When they get heavy enough to fall, they drop out of the clouds. At this point though, we still don’t know whether they will end up as rain or remain as snow. This depends on the temperature of the air they travel through on the way down to the ground. If it gets warmer, they turn into rain, but if the air stays close to freezing all the way down, then the snowflakes will make it without melting and so fall as snow.
Well, hail is actually a form of snowing! Snow forms if the air in a cloud is below freezing. The water vapour then turns to ice instead of rain and the tiny ice crystals stick together until they form snowflakes. When they get heavy enough to fall, they drop out of the clouds. At this point though, we still don’t know whether they will end up as rain or remain as snow. This depends on the temperature of the air they travel through on the way down to the ground. If it gets warmer, they turn into rain, but if the air stays close to freezing all the way down, then the snowflakes will make it without melting and so fall as snow.
What I can say is that if it is cold enough to hail, it might be cold enough to snow! And maybe, it is snowing everytime!! But it reaches us as rain. :)
Weatherman Z :)
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