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Finally, the mother of all cloud
dramas - the Cumulonimbus. This beast of a cloud is the thunderstorm.
Some of them reach up above 30,000 ft and have horrific up-draughts and,
more importantly, downdraughts. These can be in the region of 10,000
feet per min rate of climb/descent, which is like the worst roller
coaster you've ever been on. It just feels horribly bumpy when you fly
through them and pilots will happily re-route for miles to avoid them. |