Xinhua News Agency, April 22, strong cold air continues to affect our country, and there will be obvious snowfall in many parts of the north. As it goes south and combines with warm and humid air currents, rainfall in the south will also increase, and local strong convective weather needs to be strengthened. At the same time, the temperature in most of the central and eastern China will be significantly lower than that in the same period of the normal year. It is expected that around the 23rd, the temperature in the central and eastern regions will reach the lowest point in this process, and the maximum temperature in Shaanxi, Shanxi, Henan and other places will be 15 ℃ lower than that in the same period of the normal year, and the local temperature will even break the record.