Blizzard in March Peach blossom snow, thunder and snow, hot search in Henan when it snows, and the snow is as thick as a quilt. Is this normal？

Since last evening, the temperature in Hangzhou has turned straight down.

At 15 o’clock 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℃. Today, the lowest temperature in Hangzhou is 11℃. The temperature during the whole day seems to have no heartbeat, and there is almost no fluctuation. By 14 o’clock, the temperature in Hangzhou is 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 this morning, and snowfall mainly occurred in southeastern Shaanxi, southwestern Shanxi and western Henan.

This morning, heavy snow fell in Luoyang, Henan, and "Snow in Henan" once rushed to the top of the hot search. In the afternoon, snowflakes floated in Zhengzhou, the provincial capital.

From this morning to this 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).

Henan Meteorology said: Under the combined influence of cold air and strong southerly warm and humid airflow, the temperature in many places in Henan plummeted today, and there was a large range of rain and snow. In the morning, Henan Meteorological Observatory issued a yellow warning of road icing and a blue warning of blizzard.During the day today, some counties and cities in the central and western regions experienced moderate to heavy rain and snow and local snowstorms. As of 16: 00 today, the snowfall in Xin ‘an, Luoyang reached 34.8 mm.

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 today’s weather phenomenon and lightning monitoring, some areas in Henan province have experienced thunder and snow.

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 today, 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 middle of the night today, but the cold in spring is still there. In the morning after tomorrow, the temperature in Henan Province will be around 0-5℃, and there will be heavy fog in many places.

Orange persimmon interactive reporter Sun Wei

(Source: Orange Persimmon Interaction)

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