And what causes them to suddenly drop all of that water in the form of rain.
Judging by the amount of rain they must weigh a ton.
In: 337
The air above the ground gets cooler as you get higher in altitude. It also gets less dense aka less atmospheric pressure. Clouds can only “float” at certain heights closer to the ground before becoming too dense and losing particles that eventually fall further and turn into rain and fall towards the ground.
Hot air rises and basically pushes on the base of the cloud upwards. That affects the shape you see from underneath the cloud. That’s also why clouds look all puffy on top. The air reaches its highest point before cooling down and falling back down to the ground again. This also creates the effect of the base of the cloud having humps because the air above the base falls faster than the warmer air beneath it can rise and pushes the base of the cloud downwards to create those bumps or humps.
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