What is a cumulus cloud?
Sometimes cumulus clouds are white and there are only a few of them in the sky; other times they can be heavy and gray. They’re usually low-level clouds, only about 1000 meters (3300 feet) above the ground.
When do you see cumulus clouds?
Usually you get cumulus clouds when warm air rises from the ground carrying water vapor with it by evaporation. When the warm wet air rises up and meets some cold air, the water vapor gets colder and condenses into drops of water, making a cloud.
Which cumulus clouds are rain clouds?
White clouds are thin and let a lot of sunlight through them – that’s why they look white. Gray clouds are thicker, with more water. Less sunlight gets through them.
What’s a cumulo-nimbus cloud?
A nimbus cloud is one that has rain or snow falling out of it. So a cumulo-nimbus cloud is one that is puffy and has rain or snow falling out of it.
What’s a strat0-cumulus cloud?
A stratus cloud is one that covers the whole sky like a blanket. So a strato-cumulus cloud is a combination of that blanket with a cumulus cloud. It’s a cloud that covers the whole sky, but is still puffy like clumps of cotton balls.
Looking for a second source to cite? Check out this excellent article about cloud types from the National Oceanic and Atmospheric Administration.