Is the westerly wind blowing at the beginning of winter a warm winter?

The westerly wind blowing at the beginning of winter is not a warm winter.

Westerly wind means that the temperature is dropping and the wind blows cold wind from west to east. It usually occurs in winter and is a relatively cold weather type. Westerly winds have an impact on the weather in terms of both temperature and humidity, so westerly winds often occur during cold winter months. In westerly weather, the human body will feel cold due to the drop in temperature and needs to be kept warm. Different regions also have different climate characteristics in westerly weather.

In the northern region, the weather when the westerly wind blows is usually dry and cold, so you need to pay attention to keeping warm and cold; while in the southern region, it is more reflected in the abundant rain, and the westerly wind brings more obvious precipitation and rainy weather. . In westerly weather, the peak of strong winds often reaches level 10 or above, which may cause traffic safety problems. Restrictive measures such as high highway speed limits and railway traffic bans often occur on highways, railways, civil aviation, etc., and traffic jams may even occur, affecting travel safety and efficiency.

Although the weather with westerly winds is colder, it also brings unique beauty. The golden fallen leaves are swaying and dancing in the air driven by the west wind, making people feel the beauty of nature. In addition, the westerly wind is often accompanied by haze, and the sun and haze are intertwined, presenting a different gray world and creating an elegant atmosphere.

Meteorological changes at the beginning of winter:

In the beginning of winter, the sun has reached 225 degrees of ecliptic longitude, the sunshine time will continue to shorten, the height of the sun at noon will continue to decrease, and the amount of solar radiation received by the northern hemisphere will increase. The less, but because the heat stored on the surface in the second half of the year still has a certain amount of energy. Because there is still "accumulated heat" on the earth's surface, early winter is usually not very cold, and the real coldness occurs after the winter solstice. Due to the large span between the north and the south of China, the climate between the north and the south is very different. Winter of this climatic significance is obviously late for some areas in China.

After the beginning of winter, the climate transitions from drier and dry autumn to rainy, cold and freezing winter climate. In the southern region, from the beginning of winter to the light snow, there is often a sunny, warm and comfortable "Little Indian Spring" weather. There is a folk saying of "Little Indian Spring" in October. As the saying goes, "August is warm and September is warm, and October is warm." Indian Summer”. In the south, it is generally not very cold in early winter. As time goes by, cold air frequently moves southward after the winter solstice, and the temperature gradually drops.

At the beginning of winter, the high-altitude westerly jet stream has been fully established in southern Asia. At this time, the fluctuation of the south branch of the high-altitude westerly wind is strong and weak and moves eastward. When the Asian region forms a zonal circulation and the fluctuations of the southern branch of the westerly are stronger, widespread rainy weather will occur. In addition, the zonal circulation will end and the meridional circulation will be established, and there will be cold waves and substantial cooling.