What is the significance of solar terms and heavy snow?

"Heavy snow" is the 2 1 solar term in the 24 solar terms of the lunar calendar, and it is also the third solar term in winter, marking the official start of the mid-winter season. At that time, the sun will reach 255 degrees.

At this time, the lowest temperature in most parts of China has dropped to 0℃ or below. Often, in areas where cold and warm air meets strong cold air fronts, there will be heavy snow or even blizzard.

It can be seen that the solar terms of heavy snow indicate the starting time of this period and the degree of heavy snow, which, like the solar terms of light snow, rain and Grain Rain, directly reflect the precipitation.

At this time, because of the cold weather, the birds in Hao Han stopped singing; At this time, Yin Qi was in its heyday, the so-called prosperity and decline, Yang Qi had sprouted, and the tiger began to courtship; "Liting" is a kind of bluegrass, which feels the germination of yang and sends out new buds.

Extended data:

Ordinary weather

1, cooling down

According to statistics, the month with the strongest cold air in China is 1 1. From June to February in 5438, the average temperature in most parts of the north was between–5℃ and–20℃, and frost sometimes appeared after the strong cold air in the south.

2. Heavy snow (blizzard)

We know that strong cold air can often form large-scale snowfall or local blizzard. Snowfall has many benefits, especially for alleviating winter drought, freezing farm diseases and insect pests and promoting winter tourism.

3. Freezing rain (rainy season)

Strong cold air reaches the south, especially in Guizhou, Hunan, Hubei and other places, which is prone to freezing rain. Freezing rain is snow falling from the upper cold layer, sometimes it melts into rain in the middle layer, and becomes supercooled water with raindrops at a temperature below 0℃ in the lower cold layer.