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The Formation and Types of Clouds
Pick a cloud or precipitation topic below to start a tutorial. You may complete the lessons in order or pick a topic that interests you most.
How do Clouds Form?
Find the answer to all your weather science questions. Many answers include demonstrations, videos, and photos to help you understand cloud formation.
Strange Cloud Photos
Strange cloud photos as submitted by users all around the world. The weird weather you see can always be explained, but sometimes wild weather is photo worthy. Do you have a photo of a strange atmospheric phenomenon?
How To Watch Clouds Form
Cloud formations in the sky can be seen as you watch clouds form over and over again. The structure of a cloud is created in a process that is small in scale, but easy to see.
What Is a Cloud Shadow?
Cloud shadows are like regular shadows on the ground. Anything that gets in the way of the suns rays will create a shadow behind it.
Clouds Types on a Weather Map
Weather map symbols
Kelvin Helmholtz Clouds
Kelvin Helmholtz Instability (KHI) is a natural phenomena described by Lord Kelvin and Hermann von Helmholtz. When KHI plays a role in the atmosphere, some very unsual wave clouds can form.
How do Clouds Form?
Find the answer to all your weather science questions. Many answers include demonstrations, videos, and photos to help you understand cloud formation.
Actinoform Clouds
Actinoform clouds are a type of cloud defined in the weather glossary.