Why did the temperature in Yulin suddenly drop?

10 in the middle of the night, the strongest cold air entered Guangxi since the second half of this year, gradually affecting the whole region from north to south, bringing strong winds and cooling weather. This cold air is dry and cold, with little water vapor, which brings obvious air cooling and insignificant rainfall, mainly concentrated in parts of southern Guangxi.

Guangxi Meteorological Observatory predicts that the temperature will gradually drop in most parts of the region from the afternoon of 15. 16, the second day after the arrival of cold air, the temperature dropped to the lowest, and the average daily temperature in most areas of our region dropped by 4-5℃, and locally by 7-9℃. In this process, the average daily temperature in northern Guangxi will drop below 22℃, and in some areas in southern Guangxi, such as coastal areas to Yulin, the average daily temperature will hover around 22℃. From 16, there will be 5-6 days of cold dew wind weather in northern and central Guangxi (daily average temperature ≤22℃), and 4-5 days of cold dew wind weather in most parts of southern Guangxi. Cold dew and windy weather will affect the heading and flowering of late rice, so all localities should be prepared for defense.

After this cold air, there is a weak cold air to supplement the south. After 19, the impact of cold air on our area temporarily came to an end and the weather gradually improved.

In addition, Typhoon Lily is moving westward and will soon land in Vietnam. Although it will not land in China, "Lily" will have the same impact as cold air, bringing obvious windy weather to Beibu Gulf and southern Guangxi.