Traditional Culture Encyclopedia - The 24 Solar Terms - Is it warm winter when the west wind blows in early winter?

Is it warm winter when the west wind blows in early winter?

The west wind blows in early winter, not warm winter.

West wind blowing means that the temperature is falling, and the wind direction blows cold wind from west to east, which generally appears in winter and is a relatively cold weather type. The west wind will affect the weather in terms of temperature and humidity, so it often happens in cold winter. In westerly weather, people will feel cold and need to keep warm because of the drop in temperature. The westerly weather in different regions has different climatic characteristics.

In the northern region, the weather with westerly winds is usually dry and cold, so it is necessary to pay attention to cold protection and warmth; In the southern region, it is more reflected in the case of abundant rain, and the west wind brings more obvious precipitation and rainy weather. In westerly weather, the peak value of strong wind often reaches above 10, which may cause traffic safety problems. In roads, railways, civil aviation, etc. There are often restrictions such as the speed limit of expressways and the prohibition of railways, and even traffic jams, which affect the safety and efficiency of travel.

Although the west wind is cold, it will bring unique beauty. Driven by the west wind, golden leaves are flying in the air, making people feel the beauty of nature. In addition, the west wind is often accompanied by smog, and sunlight and smog are intertwined, presenting a different gray world and creating an elegant atmosphere.

Meteorological changes in early winter;

In early winter, the sun has reached the longitude of 225 degrees, the sunshine time will continue to be shortened, the height of the sun will continue to decrease at noon, and the amount of solar radiation obtained by the northern hemisphere will be less and less, but there is still some energy due to the heat stored on the surface in the second half of this year. Because there is still "accumulated heat" on the surface, it is usually not very cold in early winter, and the real cold is after the winter solstice. Due to the large span between north and south in China and the great climate difference between north and south, the winter with this climatic significance is obviously late for some parts of China.

After winter, the climate changes from dry autumn to rainy and cold winter. In southern China, sunny, warm and comfortable "Xiaoyangchun" weather often appears from beginning of winter to Xiaoxue. There is a folk saying that "it's sunny in October". As the saying goes, "it's warm in August and warm in September, and it's sunny in October". It is generally not too cold in early winter in the south. With the passage of time, after the winter solstice, cold air frequently goes south, and the temperature gradually drops.

Beginning of winter solar terms and high-altitude westerly jet have been fully established in South Asia. At this time, the fluctuation intensity and eastward movement of the south branch of the high-altitude westerly wind. When the zonal circulation in Asia and the fluctuation of the south branch of the westerly wind are strong, there will be a wide range of rainy weather. In addition, the zonal circulation will end, the meridional circulation will be established, and there will be a cold wave and significant cooling.