Here is another link to a thread on AccuWeather that discusses the different kinds of non-liquid precipitation, including what is being talked about here.

I found it interesting, although despite my long interest in weather, I may still have to go back and re-read this one a couple of times to cement in my mind the varying nuances of difference between some of the types of precipitation.

CaT

If future generations are to remember us with gratitude rather than contempt, we must leave them more than the miracle of technology. We must leave them a glimpse of the world as it was in the beginning, not just after we got through with it.
- Lyndon Johnson, on signing the Wilderness Act into law (1964)