From Wikipedia, the free encyclopedia.
Graupel can be any of the following types of solid-ice precipitation:
- hail - large chunks of ice such as from a strong or severe thunderstorm
- sleet - small pellets of raindrops that have frozen in mid-air, in winter or a thunderstorm
- snow pellets - when freezing fog forms 2-5mm balls of rime ice around a centre of sleet or a snowflake
