Bayan county, Harbin is suspected to have been hit by a magnitude 7 tornado. What is the situation at the scene?
Bayan county, Harbin is suspected to have been hit by a tornado of magnitude 7, and the situation at the scene is chaotic!
On June 7th and 5th, Life News published an article entitled "There will be hail tornadoes in Harbin in the next 1 days! The article "was madly transmitted in the WeChat circle of friends, which shocked many small partners. The reporter asked the Harbin Meteorological Observatory for verification. The staff said that the topic of this WeChat was taken out of context. If you read the article carefully, you will find that tornadoes and hail are actually only one kind of strong convective weather, and there is less possibility of tornadoes in Harbin.
Statistics show that from 7: on the 18th to 7: on the 19th, heavy rain fell at seven stations in Heilongjiang, all of which were concentrated in Mudanjiang area, and heavy rain fell at 33 stations, reaching the intensity of heavy rain. Due to the influence of precipitation, urban waterlogging occurred in some areas of Mudanjiang.
tornado is a form in which a small part of the huge energy of thunderstorm is released in a small area. In summer, the surface temperature rises rapidly, and the convection is active from afternoon to evening. In addition, the vast plains in Northeast China provide a favorable environment for the occurrence of tornadoes.
The staff of the Meteorological Observatory said that the content in this WeChat was indeed published by the Harbin Meteorological Observatory: due to the influence of the northeast cold vortex, it is expected that there will be many strong convective weather such as short-term heavy precipitation, hail, lightning, short-term strong wind and tornado in various districts and counties (cities) in Harbin from May to 14th. However, the title of the WeChat unilaterally extracted the contents of the article, and ranked the last and the least likely? Tornado? Put on the title, and added an exclamation point, obviously the title party is for the attention of bloggers. According to the reporter's understanding, there have been tornadoes in the Songhua River section of Shuangcheng, Bayan and Zhaoyuan in the history of Harbin. However, one of the conditions for the formation of tornadoes is that there is moderate cold and warm convergence airflow, and the other is that there is a large area of flat land or water, or with the help of plateau mountains, canyons and other topography. Therefore, at present, it is less likely that a tornado will appear in Harbin.
According to the Harbin Meteorological Observatory, there was heavy rain during the day from the night of 6th to 7th, with moderate to heavy rain in all districts and counties (cities) in Harbin, and heavy rain in some towns and villages in Bayan, Mulan and Tonghe in the north. 9 ~ 1 cloudy with showers or thunderstorms; There was a moderate rain process from 11th to 13th, and there was heavy rain locally.
The staff of Harbin Meteorological Observatory suggested that citizens should take more clothes to prevent colds. At the same time, relevant departments should do a good job in urban drainage, and billboards, temporary structures and other facilities should be strengthened in windy days.
affected by the tornado, 13 high-voltage power lines and 94 transformers in the county tripped and stopped, and nearly 1, people's electricity consumption was affected. After the disaster, the county electric power department sent 9 teams with more than 2 people to repair it overnight. ? At that time, it was raining heavily. Later, I saw a strong wind blowing from south to north in a mess. The sky was full of plastic bags and colored steel tiles. The wind didn't last long, only 1 seconds to 2 seconds, and it became smaller when there were few buildings. ? Dawei, a vendor from Yuliangbao, happened to drive by Bayan County in Harbin and saw this thrilling scene.