Moon halos, or lunar halos, form when light refracts off of ice crystals in a thin layer of cirrus clouds. They’re sometimes called 22-degree halos because the light is refracting - or bending ...

How Are Clouds’ Shapes Made? Explore the diverse world of cloud formations, from ground-level fog to high-flying cirrus clouds, and learn how these atmospheric features can help predict weather ...

In some cases, you can see the Sun or Moon through them. Streaks of high white clouds ... top as they reach the stratosphere, where the atmosphere begins to warm with height. However, most cirrus ...

In some cases, you can see the sun or moon through them. Cirrus clouds that form atop a thunderstorm spread outward and can form anvil clouds. These clouds flatten on top as they reach the ...