Clouds need two essential ingredients to form, and both must be present simultaneously for the process to begin. There are two ingredients needed for clouds to form: water and nuclei. The first ...

Water moves between pools through evaporation into water vapor, transport through the atmosphere, condensation to form clouds, and returns to the surface as precipitation. At its core, the water cycle ...

It’s important to note that all precipitation starts high in the sky, where the temperature is well above freezing, so it all ...