What year's snowstorm?

In 2008, there was a snowstorm in China.

The snowstorm in South China in 2008 refers to the natural disasters such as low temperature rain, snow and freezing that have occurred in China since June 38, 2008. China, Shanghai, Jiangsu, Zhejiang, Anhui, Jiangxi, Henan, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang and other 20 provinces (autonomous regions and municipalities) are all affected by low temperature rain, snow and freezing disasters to varying degrees.

The cause of the snowstorm:

The main reason for the formation of a large-scale rain and snow weather process is the abnormal atmospheric circulation, especially the abnormal flow of Eurasian balloon. As we all know, the atmospheric circulation has its own operating rules and keeps a stable circulation state for a certain period of time. There is a low-value system in the southwest of Qinghai-Tibet Plateau, while Siberia maintains a relatively high-value system, namely, meteorological low-pressure system and high-pressure system.

Cold air and warm air meet in the middle and lower reaches of the Yangtze River and the south. The density of cold air is relatively large, so warm air will slide up along the cold air layer, so the rich moisture carried by warm and humid air will condense, forming rain and snow weather.

Due to the unusually long-term intersection of cold and warm air in this area, the rainy and snowy weather in southern China lasts for a long time.

Refer to the above? Baidu Encyclopedia-Snow Disaster in China in 2008