Snow wiki:
>For other uses, see Snow (disambiguation). Snow is precipitation in the form of crystalline water ice, consisting of a multitude of snowflakes. Since it is composed of small rough particles it is a granular material. It has an open and therefore soft structure, unless packed by external pressure. Snow is commonly formed when water vapor undergoes deposition high in the atmosphere at a temperature of less than 0°C (32°F), and then falls to the ground. Snow can be also manufactured using snow cannons, which actually create tiny granules more like soft hail. (This is sometimes called "grits" by those in the southern U.S. for its likeness to the texture of the food.)
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