Peach blossom snow, thunder and snow … Many places in Henan issued a red warning of blizzard! Netizen： ＂It snows when the flowers bloom, have no martial ethics.＂
Since the evening before yesterday, the temperature in Hangzhou has turned straight down.
At 15 o’clock the day before yesterday, the temperature in Hangzhou was 26.1℃, and at 23 o’clock in the evening, the temperature was only 12.2℃. In just 8 hours, the temperature dropped by nearly 14℃. Yesterday, the lowest temperature in Hangzhou was 11℃. The temperature in the whole day seemed to have no heartbeat, and there was almost no fluctuation. By 14 o’clock, the temperature in Hangzhou was only 11.4℃.
Just when Hangzhou people "spit" spring is like the four seasons, many friends said:Not only is the four seasons in Hangzhou chaotic, but it snows heavily in Henan!
With the cold air heading south, rain and snow occurred in parts of Henan, Shanxi, Shaanxi, Hubei and other places from yesterday morning to morning, and snowfall mainly occurred in southeastern Shaanxi, southwestern Shanxi and western Henan.
Yesterday morning, heavy snow fell in Luoyang, Henan Province, and "Snow in Henan" once rushed to the top of the hot search. In the afternoon, snowflakes floated in Zhengzhou, the provincial capital.
Yesterday morning to afternoon, the snowfall (turning into water) in Luanchuan, western Henan Province has exceeded 20 mm, reaching the level of heavy snowstorm. The local meteorological observatory has issued a yellow warning signal of snowstorm red warning signal and road icing. The snow is as thick as a quilt, and it is 18 cm at 14: 00, which is rare in March. The local snow record in March is 20 cm (March-April, 1992).
On March 16, many places in Henan ushered in snowfall, with moderate to heavy snow and partial blizzard in some areas. As of 15: 00, Lushi County, Songxian County, Ruzhou City, lingbao city City and Dengfeng City in Henan Province have issued red warnings for snowstorms. The reporter learned from the Henan Meteorological Bureau that this round of snowfall was mainly caused by low-level southward cold air and strong southerly warm and humid airflow.
Due to the rapid warming in the early stage, the current Henan is full of red flowers, green willows and green spring colors. And the arrival of this round of rain and snow cooling weather, press the "deceleration button" for spring warming. In Zhengzhou, the provincial capital, the rainfall that began to appear on the morning of the 16th gradually increased. In the afternoon, the sky was covered with patches of snow, and the temperature was also lower, and the chill burst. In Luoyang, Sanmenxia and other places, heavy snow fell from the sky and soon covered the earth with "white clothes".
According to the analysis of meteorologists from Henan Meteorological Bureau, this round of snowfall in Henan is mainly caused by the low-level southerly cold air and the strong southerly warm and humid airflow. On the 15th, the cold air southward caused a sudden drop in temperature, forming a cold air cushion near the ground. The abundant water vapor carried by the warm and humid airflow with strong southerly direction quickly climbed on the cold cushion, condensed or condensed, and then landed on the ground, forming the snowfall in Henan. In addition, the temperature in the western mountainous area of Henan province is lower, and the snowfall occurs earlier. The precipitation phase in the central area will gradually change from rain to sleet or snow with the further decrease of temperature.
According to the monitoring of Henan Meteorological Observatory, at 7: 00 to 11: 00 on March 16th, moderate rain and snow occurred in some counties and cities in Sanmenxia, Luoyang, Jiaozuo and Nanyang, and local snowstorms occurred. The top three snowfalls are Xin ‘an 19 mm, Lushi 10.3 mm and Luanchuan 9.6 mm respectively.
The Henan Meteorological Observatory predicts that there will be heavy precipitation from the afternoon of the 16th to the first half of the night, and some counties and cities such as Luoyang, Zhengzhou, Pingdingshan and Nanyang will have moderate to heavy snow and local snowstorms. Xinyang is rainy with lightning. After midnight, the precipitation gradually weakened and moved out of Henan Province.
The Henan Meteorological Observatory issued a blue warning of blizzard at 11: 00 on the same day: It is estimated that there will be more than 5 mm of snowfall in Sanmenxia, Luoyang, Pingdingshan, central and northern Nanyang, Zhengzhou, western Xuchang, Jiyuan, western Jiaozuo, western Xinxiang and western Anyang during the day and night, including more than 10 mm of snowfall in Sanmenxia, Luoyang, western Zhengzhou, western Pingdingshan and northern Nanyang. At 9: 30 on the same day, the Henan Meteorological Observatory also issued a yellow warning for road icing.
Snow in March is also called "Peach Blossom Snow"When the peach blossoms are in full bloom, the wind blows the petals like snow, and later people call the snowflakes falling with the peach blossoms peach blossom snow.
You know, a week ago, Zhengzhou experienced the "summer" in advance, and the highest temperature exceeded 30℃. A week later, it began to "peach blossom snow" in March, which was really a random crossing of the four seasons.
In addition, from the weather phenomenon and lightning monitoring, some parts of Henan province have been thundered and snowed.
Many netizens feel quite puzzled.It’s March, and it snows at this time, and it can also thunder and snow. Is it abnormal?
According to the analysis of China Weather Network,At this time, it is in the season of alternating cold and warm, and it is normal to snow. In previous years, it snowed in April.Snowfall is mainly caused by the combined influence of warm and humid airflow in the south and the cold air infiltrating from the lower level to the south, and some areas are also caused by topography. For example, in mountainous areas with higher altitude, the temperature is lower, which is prone to snowfall.
As the cold air moves south, rain and snow will also change in some areas, and the snowfall area will spread further south. For example, in Mianchi, Henan Province, it rained from about 5 am yesterday, and it snowed from around 6 am to 10 am. The accumulated snowfall has reached 9 mm.
The phenomenon of "thunder and snow" has also happened in many places.When it snows, because the strong warm and humid airflow meets the strong cold air, the warm and humid air is forced to rise, resulting in strong convection, which creates conditions for the formation of lightning, and the phenomenon of "thunder hitting snow" appears.
Some people say, "It snows in have no martial ethics only after the flowers bloom", while others care.: I wonder if crops will have an impact?
Henan Meteorology said that due to the lack of precipitation in Henan Province in the early stage, the proportion of 0 ~ 10 cm short of moisture monitoring stations reached 55% (note: moisture is an important monitoring indicator of drought, mainly reflecting the situation of soil water content), and the forest fire risk rating was also high.This rain and snow process is very beneficial to improving soil moisture, ensuring wheat growth and reducing forest fire danger.It is expected that the rain and snow will gradually stop in most areas in the latter half of the night, but the cold in spring is still there. In the morning after tomorrow, the temperature in Henan Province is mostly around 0-5℃, and there are many fogs at the same time.
Editor-in-Chief: Qin Hong
Text Editor: Dong Siyun
Author: orange persimmon interaction
Title source: IC photo
Photo editor: Cao Liyuan