| definition |
- (Also called granular snow.) Precipitation in the form of very small, white opaque particles of ice; the solid equivalent of drizzle.
They resemble snow pellets in external appearance, but are more flattened and elongated, and generally have diameters of less than 1 mm; they neither shatter nor bounce when they hit a hard surface. Descriptions of the physical structure of snow grains vary widely and include very fine, simple ice crystals; tiny, complex snow crystals; small, compact bundles of rime; and particles with a rime core and a fine glaze coating. It is agreed that snow grains usually fall in very small quantities, mostly from stratus clouds or from fog, and never in the form of a shower.
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| Abstract from DBPedia | Snow grains are a form of precipitation. Snow grains are characterized as very small (<1 mm), white, opaque grains of ice that are fairly flat or elongated. Unlike snow pellets, snow grains do not bounce or break up on impact. Usually, very small amounts fall, mostly from stratus clouds or fog, and never fall in the form of a shower. The METAR code for snow grains is SG.霧雪（きりゆき、むせつ）は雪の降り方の一種。霧のような細かい雪の事。 (Source: http://dbpedia.org/resource/Snow_grains) |
