Weather forecast: It will be cold early this fall. Will the autumn tiger come? How cold will it be this autumn? What do farmers say?
Since the end of August, the temperature has generally dropped in many places across the country. The temperature difference between day and night in the north has increased significantly. The hot summer season has left and the crisp autumn is about to usher in.
However, after the summer heat is over in the south, there will often be short-term hot weather, which is also called "autumn tiger"!
So many people are also asking, will the tiger come this autumn? Is it cold in autumn? 3 farmer proverbs give the answer!
01. Typhoon "Xuanlannuo" brings heavy rain
As Typhoon Xuanlannuo moves northward, rainfall begins to increase along the southeast coast.
As a super typhoon, the arrival of Xuanlannuo also caused more rain in Jiangsu, Fujian, Zhejiang and other places, and even heavy rain occurred in some places.
From September 5th to 6th, northeastern Zhejiang, southeastern Jiangsu, Shanghai, western Yunnan, southeastern Tibet, eastern Jilin, and northwest Heilongjiang will usher in moderate to heavy rains, including parts of northeastern Zhejiang, southeastern Jiangsu, and Shanghai. There are heavy rains, and there are strong winds above level 5-6 in Jiangsu, Zhejiang and Shanghai.
From the 6th to the 7th, moderate to heavy rain will hit Taiwan Island, eastern Guangdong, southern Fujian, southeastern Tibet, northeastern Kyrgyzstan, and northeastern Heilongjiang. Among them, southern Fujian, northern Taiwan Island, and northeastern Heilongjiang will experience partial rains. Heavy rainy weather.
From the 7th to the 8th, western Sichuan, Gannan, southern Shaanxi, southeastern Fujian, central and southern Guangdong, southern Hainan Island, Taiwan Island and other places experienced moderate to heavy rains.
From the 8th to the 9th, heavy rain will hit South China, the Western Sichuan Basin, and southern Tibet.
As the saying goes, "One autumn rain and another cold". Since the typhoon brings heavy rain, does that mean that the temperature will continue to drop? Autumn tiger can't come?
In fact, this is not the case. Typhoon Xuanlannuo brought "Autumn Tiger" after it moved north. What is going on?
It turns out that after the typhoon moves northward, the southern region will be affected by the peripheral downdraft, and the subtropical high pressure will take advantage of the situation. The Sichuan Basin to Jiangnan will still usher in high temperature weather.
The so-called "autumn tiger" actually means that the weather is still hot after the beginning of autumn. The main reason is that during the southward movement of the subtropical high pressure, the sunshine is strong and the weather is clear and cloudy.
Due to the instability of atmospheric circulation, the subtropical high will briefly move westward and northward, causing the "autumn tiger" to descend like a fierce tiger and cause high temperature weather to occur again.
Autumn tigers usually appear in the middle and lower reaches of the Yangtze River, as well as in the south of the Yangtze River and southern China. They also occasionally appear in the north, but the time is usually from the end of August to the beginning of September, while in the south it will last until the end of September or October. .
For example, "Autumn Tiger" started on August 26 last year in Jiangnan and South China and lasted until the end of September. Many places were so hot that they broke records.
So, where will tigers affect this autumn?
Judging from the weather forecast, it is expected that until Wednesday, the highest temperature in many places in eastern Sichuan, Chongqing, eastern Guizhou, Hunan, Hubei, Jiangxi, and southern Henan will reach over 35 degrees Celsius, with some areas reaching 38 degrees Celsius. degrees Celsius or above.
After that, Jiangxi, Hunan and other places will continue to be hot.
However, experts also predict that this autumn will be dry and hot. The heat will not be as extreme as in summer, and it will not last too long. The temperature difference between day and night is large, so everyone should be prepared to add more clothes. , to avoid catching cold.
Of course, as the sun's direct point moves southward, the heat in various places will gradually weaken, and as the cold wind from the north gradually moves southward, the autumn tiger will naturally fade away.
02. Is autumn cold? 3 Farmers' Proverbs Give the Answer
The meteorological classification standard for autumn is that the average temperature is greater than 10℃ and less than 22℃, and if the average temperature is less than 22℃ for 5 consecutive days, then the time is the beginning of autumn. day.
Our country has a vast territory, and there is a big difference in the time of autumn between the north and the south. In high-altitude mountainous areas, autumn comes in June every year. In August, most of the northeast, Inner Mongolia, most of the northwest, central Sichuan, and central Guizhou Autumn has already entered in western China, Inner Mongolia, central Shanxi and northern Shanxi.
Beginning in September, the autumn front line has been pushed southward to central Zhejiang, northern Jiangxi, central Hunan, and northern Guangxi, and reached the coast of South China in October. In November, the southern coast of Guangdong and Guangxi, Hainan Island, and Taiwan The island will usher in autumn.
Among the provincial capital cities, autumn usually begins on August 12 in Hohhot and on November 26 in Haikou, a difference of 106 days.
So, some people may ask, will it be cold this autumn? You can get the answer from 3 farmers' proverbs.
1. “It’s very cold in the summer, so wear cotton-padded clothes on August 15th.”
Literally speaking, if the weather starts to get colder during the summer, it means that the subtropical high pressure is moving southward. The "autumn tiger" has not been brought, and the temperature has dropped relatively quickly. Maybe it is necessary to change out of short sleeves and wear thick clothes at the beginning of the Mid-Autumn Festival.
In fact, in the north where the author is located, I have already replaced my short sleeves with a coat. I am afraid it will not be too hot this autumn.
2. "It's cold at the end of summer, and the white dew wears cotton"
It can be seen literally that if there are continuous rains at the end of summer and the weather is cold, it means there will be more rain in autumn, and There are autumn rains and cold, and autumn will not be too hot. You may need to wear thick clothes to keep warm during the Bailu solar term.
We are currently at the end of the summer heat. For North China and the Huanghuai area, the temperature is indeed not too high, and autumn comes relatively early.
3. "It rains heavily in mid-autumn, and it rains continuously. The so-called Mid-Autumn Festival is also September. If there are heavy rains and frequent cloudy days in Mid-Autumn, cold air may arrive during the White Dew solar term and the temperature will drop significantly. quick.
From this point of view, although the "Autumn Tiger" has caught up with the end of the summer heat, it only affects some areas. The temperature in many other places is still low, and it may be cold in autumn!