Sleet



Frozen raindrops

Smaller than hail
May be mixed with rain and snow

snow
falls
through warmer air in the atmosphere
which turns to
rain
then air turns cold again as it falls
turns into
sleet

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/prcp/slt.rxml

http://www.youtube.com/watch?v=4829C0k2N40

http://kocoweatherblog.wordpress.com/2008/12/10/sleet-vs-snow-vs-freezing-rain/

http://www.youtube.com/watch?v=SeG6UqyaCV0