What is the sign of heavy snow in the weather forecast?

The sign of heavy snow is that there are three snowflakes under the cloud.

Based on the 24-hour precipitation, the snowfall (melting into water) is 0. 1 ~ 2.4 mm, small to medium snow 1.3 ~ 3.7 mm, medium snow 2.5 ~ 4.9 mm, moderate to heavy snow 3.8 ~ 7.4 mm, and heavy snow reaches 5.0 ~ 9.9 mm and 7.5.

Snowfall has many benefits, especially for alleviating winter drought, freezing farm diseases and insect pests and promoting winter tourism. However, the snowy road is slippery and icy, which easily leads to civil aviation flight delays, road traffic accidents and lane congestion; In some areas, the closure of mountains and roads by snowstorms will also pose a threat to the safety of people and animals in pastoral grasslands (commonly known as white disasters).