Snow is the most common form of solid precipitation and consists of many very small ice crystals. These form at temperatures below -4 °C, and fall to earth, as long as their falling speed and the temperature and humidity below the clouds do not allow the crystals to melt or evaporate.
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| Description of measurement and prognostic values |
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| Possible impacts |
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| Description of measurement and prognostic values |
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| Possible impacts |
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| Description of measurement and prognostic values |
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| Possible impacts | Slippery conditions due to snow-covered roads |
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| Description of measurement and prognostic values |
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The snowfall warnings are primarily issued for widespread precipitation.
The warning threshold values in category 2 and 3 for lowland areas differ according to region.