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Where is the cold wave mainly distributed?
It is mainly distributed in northern Xinjiang, central and northern Inner Mongolia, most of Jilin and northern Liaoning. Coldwave refers to a severe weather and a form of air (cold air) flow, which can only be called cold wave when the local temperature drops by more than 1 degrees Celsius within 24 hours and the lowest temperature of the day is below 5 degrees Celsius. The cold wave starts in September at the earliest and occurs in May at the latest, and November is the month with the most cold waves. In China, it mostly occurs in northern Xinjiang, central and northern Inner Mongolia, most of Jilin, northern Liaoning and other places. The cold wave that affects China is generally "born" near Xindi Island and Iceland, and it accumulates in "gas stations" in western Siberia. Most of these areas are located in the Arctic region, and there is no sunshine for a long time in winter. When the air pressure of this cold air mass increases to be far higher than that in the south, it will flood and pour to the south with lower air pressure whenever there is an opportunity, which will form a cold wave, which can affect China through various paths; According to the intensity, it can be divided into cold wave, strong cold wave and extra-strong cold wave; It will cause severe cooling, strong winds and rainy and snowy weather along the way.