On March 16, it is still short sleeves, cold drinks, fans, and on the 17th, cotton clothes will be added. The cold air that arrived on the night of the 16th is not bad, and after the southern warm and humid air flow intersects, the ability to "carry goods" is also very strong, from north to south, rain and snow, strong wind, cooling, hail, etc., a lot.
From the 17th to the 21st, for Jiangsu, the cooling is like changing seasons. On the 17th, the wind and rain were fierce and cold during the day, and the temperature in the province continued to decline, of which the highest temperature in northern Jiangsu was only 6-7 °C, and the highest temperature in Nanjing was 12 °C, a sharp drop of 17 °C from the previous day. For the small partners in Jiangsu, especially in the northern Jiangsu region, when they wake up, they may return to winter, and winter clothes are tightly worn. Here to remind everyone, strong rainfall and strong convective weather or will be online, we should pay attention to the forecast and early warning information issued by the local meteorological station, reasonable arrangements for travel, and carry rain gear; timely increase clothing, do a good job of warm measures, beware of colds.
Overnight season change
From "summer" to "winter", the maximum temperature in Nanjing today is 12 °C
On March 16, the opening was sunny, and everyone went out with short sleeves and skirts. On that day, the maximum temperature in the area south of the Yangtze River generally reached about 28 °C, of which the highest Lishui was 29.4 °C, which was a proper early summer visual sense.
However, by the 17th, the maximum temperature in many places in the province was only more than 10 ° C, and the temperature directly "collapsed" overnight, and one "jumped" for two seasons.
Strong wind and rain affected Jiangsu on the night of the 16th, followed by strong cooling on the 17th officially took you back to winter in seconds. That is to say, when you wake up on the morning of the 17th, the cold will be obvious, and you must wrap up a cotton coat when you go out to work, afraid of the cold, autumn clothes and autumn pants are also found out and worn. According to the one-week temperature change line chart of Nanjing and Xuzhou produced by Jiangsu Meteorological, the wet and cold will last for nearly a week. On the 17th, Nanjing 7 ~ 12 °C, Xuzhou 3 ~ 9 °C. On the 18th, the lowest in Xuzhou continued to fall to 0 ° C, and in the winter it killed back.
Nanjing Meteorological Observatory also issued an important weather report, affected by the strong cold air, the city's temperature dropped significantly from the 17th, the maximum cooling range can reach more than 10 °C, and the maximum temperature on the 18th is only 12 °C to 13 °C. Compared with the 16th, both high and low temperatures are discounted in half. Remind everyone that when it is warm and cold, you must be cautious in dressing, do not roar and take off your cotton clothes, after all, spring is like four seasons, which is the correct way to open the weather in March in Nanjing.
Winds and rains are strong, with gusts of 13 cities or now level 8 and above
This wave of cold air from the south, from north to south, swept through most of the central and eastern parts, bringing cooling rain to the north and south can be described as vigorous and complex, the south is a large-scale rainy weather process, and the north is a rain and snow weather process.
On March 16, the Jiangsu Meteorological Observatory successively issued a yellow warning signal for high winds and a blue warning signal for high winds in the sea area. It is expected that from the evening of the 16th to the 17th, there will be strong gusts of 9-10 gusts in Lianyungang, Yancheng and Nantonghai Districts, and gusts of 8 or above will occur in Xuzhou, Suqian, Lianyungang, Huai'an, Yancheng, Yangzhou, Taizhou, Nantong, Nanjing, Zhenjiang, Changzhou, Wuxi and Suzhou. Everyone must pay attention to safety when going out, and beware of falling objects from high altitudes.
In the evening of the same day, the provincial meteorological station also issued a rainstorm warning on the same day.
It is expected that from the night of the 16th to the day of the 17th, there will be showers or thunderstorms in the province, of which the area south of the Huai River is heavy to heavy, the other areas are moderate to heavy rain, and on the night of the 17th, there are showers or thunderstorms in the eastern areas south of the Huai River, and gradually stop turning cloudy to cloudy, and other areas are cloudy to cloudy; the east to northeast winds of the province are 5 to 6 gusts of 7 to 8.
On the 18th, the province was cloudy to cloudy, and there was sometimes light rain between Jianghuai and parts of Huaibei, and on the 19th, the province was cloudy and cloudy and sometimes had light rain. Remember to bring rain gear with you on your way to and from work.
Dressing up in a different season? Here is a guide for reference
The "changing season" cooling is coming, and the winter clothes seem to have to support the scene again. In order to prevent dressing confusion, Jiangsu Meteorology also intimately issued a chaotic clothing warning map, the highest temperature in northern Jiangsu on the 17th is 6 to 7 ° C, equivalent to an overnight "winter", down jackets to wear back; the highest 8 to 12 ° C between Jianghuai and Huaihuai, the spring cold material is steep, the coat can be wrapped tightly; the highest temperature in southern Jiangsu is 12 to 16 ° C, the "summer" season experience is over, and the thick coat is added.
Specifically, on the morning of the 17th, the southeastern region of the province was about 9 °C, the Huaibei area was 4 to 5 °C, and other areas were 6 to 7 °C; in terms of the highest temperature, the Huaibei region was 6 to 7 °C, the southern Jiangsu region was about 15 °C, and the other areas were about 10 °C. On the 18th and 19th, the feeling of wetness and cold intensified, and the minimum temperature in Huaibei was close to 0 °C, and there was frost or frost.
According to the analysis of meteorological experts, the large-scale heavy precipitation in the south and the rain and snow weather in the north are the results of the joint influence of warm and humid air flow and cold air. Taking the rain in the south as an example, the warm and humid air flow from the Indochina Peninsula all the way north, bringing warm spring to most of the south, as well as abundant water vapor and unstable energy. The cold air and warm and humid air flow from the south meet and collide in the central and eastern parts of the continent, and bring heavy precipitation weather under the combined action of atmospheric unstable energy and other factors.
In addition, the "cargo" ability of the collision of warm and humid air flow and cold air is very strong, and the "group" with heavy rain comes, and there are strong convection weather such as short-term strong precipitation, high winds, hail, and lightning.
Hot spotlight
Is it "spring cold"? Not up to par
The plummeting temperatures suddenly pull spring back into winter. Many people want to know, is this cooling rain process counted as "spring cold"? Some agricultural gas experts pointed out that the cooling process has not yet reached the standard of "pouring spring cold", which has little impact on agriculture.
At present, most of the north has just entered the spring, and the winter wheat is in the overwintering, greening or rising period, with strong cold resistance, and the fruit trees have not yet flowered. Therefore, this weather process is not enough to hurt the northern crops, on the contrary, rain and snow are beneficial to promote the increase of wheat fields and the return to green. At the same time, the south can not form a "spring cold" disaster, the southern rice seedlings have just begun, this weather process cooling range is not large, the time is not long, will not cause a large area of early rice rotten seedlings. On the contrary, for most of the south, drought conditions have developed in some areas due to high temperatures and low precipitation in the early stage. Rainwater in Jiangnan, Jianghan, Jianghuai, Guizhou and central Chongqing can alleviate drought in most parts of the south and reduce the level of forest fire risk, but it is necessary to guard against short-term heavy precipitation that may adversely affect mountainous areas such as northern Hunan, southern Anhui and eastern Hubei.
So, what is "cold spring"? When will the "spring chill" occur? Mao Liuxi, chief meteorological expert of the Central Meteorological Observatory, said in an interview with the media that "inverted spring cold" has clear standards in meteorology, according to the "inverted spring cold meteorological indicators" and "GB/T 34816-2017" formulated in 2017, "inverted spring cold" mainly refers to the phenomenon of "warm in the early stage and cold in the later stage" in the spring of each year (March to May), and the temperature in the later period is significantly lower than in normal years. The word "inverted" in the cold of spring is reflected in the warmth of the front and the cold of the back. In general, it occurs from April to May in the north and from March to May in the south.
After the wind and rain, the cherry blossoms fall, and the begonias or more colorful
This year, Nanjing entered the spring on February 28, which is the earliest spring entry time after 2000. This is not only manifested in the temperature, the early opening of flowers and plants, but also tells us this. At the moment, a wave of cooling is on the way, are those flowers that are driven by the heat okay?
"Plant flowering is mainly affected by weather, rain and other aspects, this round of cooling may slow down the budding spring flowers to open the pace, and the flowers that have already opened may extend the opening time." Garden experts analyze, in general, spring cooling has little impact on the spring flowers that have flowered, due to the rainfall, the February orchids and begonias that have flowered are moistened by rain, the flowering time will be longer, and the flower momentum may be more spectacular.
The "King of Popularity" cherry blossoms are sensitive to temperature and are relatively fragile, and in the event of strong winds and heavy rains, the flowering period may be shortened.
In addition, for some spring flowers such as peach blossoms that will not bloom, the pace of blooming will slow down. If the weather improves rapidly, the flower bloom may only be delayed by 3-5 days; once the cold and cloudy weather continues, the flowering period may be delayed by about a week. Remind the citizens who love flowers to reduce their going out and not to gather recently, and stay at home together to "enjoy the flowers in the clouds".
Yangzhou weather
The Yangzhou Meteorological Observatory was released at 10:00 on March 17, 2022
High wind warning and weather forecast
This afternoon there are showers or thunderstorms, the amount of rain is moderate to large, and the rain stops turning cloudy to cloudy at night,
Northeast winds of 5 to 6 gusts of 7 to 8, turn northwest winds at night and weaken to 4 to 5,
Today's maximum temperature: 8 °C to 9 °C,
Tomorrow morning minimum temperature: 5 °C to 6 °C,
18 days cloudy,
18 days of maximum temperature: 13 °C to 14 °C,
Lowest temperature on the 19th: 4°C to 5°C,
On the 19th, it was cloudy and sometimes there was light rain,
19 days of maximum temperature: 14 °C to 15 °C,
Lowest temperature on the 20th: 4°C to 5°C.
Source: Modern Express +, Yangzhou Meteorology