We haven’t yet figured out what gives them their shape, determines their altitude – or makes them rain when they do. What’s ...

How Are Clouds’ Shapes Made? Explore the diverse world of cloud formations, from ground-level fog to high-flying cirrus ...

Often, these are fair-weather clouds that form when the sun warms the ground and the warm air rises. You’ll often see them on humid summer days. However, if the air is particula ...

Utah! We began the day with plenty of sunshine, but some high cirrus clouds have started to stream in from the west, and will ...

Different cloud shapes play different roles in climate moderation. “Cirrus clouds — high, wispy clouds visible in the distant atmosphere on relatively clear days — absorb and trap more ...

You should look for sun pillars around those times when the sun is low on the horizon, especially when cirrus clouds are present. Cirrus clouds are made up of ice crystals, which can help meet the ...