A new round of large-scale rain and snow is on the line, and cold air strikes. Why is there so much rain and snow recently?

A new round of large-scale rain and snow is on the line, and cold air strikes. Why is there so much rain and snow recently? Let's discuss this problem below, hoping that these contents can help friends in need.

China has suffered two rounds of rain and snow since February. According to the weather forecast of the Central Meteorological Observatory, from February 16 to February 18, the third round of large-scale rain and snow weather in that month will be "online", affecting more than 25 provinces, autonomous regions and municipalities.

According to the weather forecast of the Central Meteorological Observatory, a new round of rain and snow will affect China from 16 to 18. The snow cover is wide, and the phases of rain and snow in Hubei, Anhui, Jiangsu and Zhejiang have changed.

"The whole process of this round has affected more than 25 provinces, autonomous regions and municipalities, with the characteristics of wide coverage, complicated rain and snow stages and long rainfall time in some areas, and heavy snowfall will occur in some areas." China Weather Network climate investment analyst Wang introduced in detail.

Meteorologists introduced in detail that the overall compressive strength of this round of large-scale rain and snow is expected to be less than the whole rain and snow process from February 5 to 7. Snowfall is the main rainfall stage in the north, and precipitation is the main rainfall stage in the south, with rain and snow mixed in the middle and upper reaches of the Yangtze River.

The Central Meteorological Observatory predicts that from 16 to 18, there will be small to medium snow or sleet in the eastern part of northwest China, the central and western parts of Huanghuai, Jianghan, the central and western parts of Jianghuai, the northern part of Jiangnan and the northern part of Sichuan Basin, and rain will turn to snow. Among them, there will be snowfall in southern Gansu, southern Ningxia, southeastern Shaanxi, central and western Henan, western and northern Hubei, southwestern Jiangsu and other places, and there will be heavy snow in some mountainous areas.

17 ~ 18, there will be a large-scale precipitation process in Jiangnan and South China, with moderate to heavy rain in parts of Jiangxi, Hunan and Guangxi.

According to the forecast of the Central Meteorological Observatory, the snowfall in Gansu, Ningxia, Shaanxi, Henan and other places mainly occurs at 16 to 17, while the snowfall in central and northern Hubei, Anhui, Jiangsu and northwestern Zhejiang mainly occurs at 17 to 18. Among them, Anhui, Jiangsu, northwest Zhejiang and other places 18 changed from snow or sleet to rain.

Meteorologists suggest that snowfall is obvious in Gansu, Ningxia, Shaanxi, Henan, Jiangsu and Zhejiang. People need to guard against the adverse effects of snowfall, melting snow and low visibility on urban traffic, and scientifically arrange the time for going out.

The total rainfall in parts of the south of the Yangtze River and South China is relatively large, so people need to guard against the adverse effects on transportation and the disasters in some areas.

Among the provincial capital cities, Taiyuan and Hohhot can see pure snow, and Hohhot has the most snowfall time, lasting nearly 2 days; The rainfall stages in Xi, Hefei and Nanjing will change between precipitation and sleet. From 17 to 18, there will be moderate to heavy rain in Nanchang, Guangzhou and Hangzhou, accompanied by cold air heading south. Since February, China has suffered two rounds of large-scale rain and snow weather, which not only has great precipitation intensity, but also has great influence.

Why is the rain and snow weather high in China recently? "This is also because of the frequent occurrence of strong cold air in recent days, coupled with the activities of the south branch trough, the warm and humid airflow in the southwest in front continues to transport water vapor to the north, providing sufficient water vapor standards for rainfall." Wang instructed.

Looking forward to the middle and late future, I hope the rain and snow in the north will stop this Sunday, but there are still more rainy days and lower temperatures in the south, so we should be careful of the adverse effects of ultra-low temperature and freezing weather on transportation.

From February 20 to 22, the whole process of rain and snow will occur again in the eastern part of southwest China, Jianghan, Jiangzhun and most parts of the south, which needs to be paid attention to.