Snow_grains

Snow grains are a form of precipitation characterized as:

• white, opaque grains of ice
• very small >1 mm,
• fairly flat or enlongated,
• unlike Snow pellets they don\'t bounce or breakup on impact,
• very small amounts fall, mostly from Stratus or Fog,
• Never in the form of a shower.

The METAR code for snow grains is SG.

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