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ice pellets—A type of
precipitation consisting of
transparent or translucent pellets of
ice, 5 mm or less in diameter.
Graupel:
snow pellets—(Also called soft hail,
graupel, tapioca snow.)
Precipitation consisting of white,
opaque, approximately round (sometimes conical)
ice particles having a snowlike structure, and about 2–5 mm in diameter. Snow pellets are crisp and easily crushed, differing in this respect from
snow grains. They rebound when they fall on a hard surface and often break up. In most cases, snow pellets fall in
shower form, often before or together with
snow, and chiefly on occasions when the
surface temperature is at or slightly below 0°C (32°F). It is formed as a result of
accretion of supercooled droplets collected on what is initially a falling
ice crystal (probably of the spatial aggregate type).
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