What's the impact of the tornado in shangzhi city, Heilongjiang on traffic?

From June 1 day 17: 30 to 18: 00, strong convective weather of tornadoes and hail occurred in shangzhi city, Heilongjiang Province, causing four towns and villages in the city to be affected to varying degrees. Due to the sudden tornado attack, the equipment between the west of Maoershan and the south of Shangzhi along the Hamu high-speed railway broke down, resulting in the delayed operation of passenger trains D8522, D85 19, D8526, G7 17, D9 134 and D852 1 time.

The railway department immediately launched an emergency plan for emergency repair. As of press time, the Hamu high-speed railway has been opened in one direction, and the high-speed trains are resuming operation in an orderly manner in the later period.

According to preliminary statistics, as of 2 1: 49, it has been reported that 4 townships 17 people were injured, and all of them have been sent to shangzhi city People's Hospital for treatment. Among them, 1 person died after being rescued, 1 person was seriously injured and being treated, 15 person was slightly injured; More than 70 houses were damaged, and some factories, cold storage, cowshed, chicken coop and farmland were damaged. Direct economic losses are being counted.

The formation of tornadoes has gone through four stages.

The first stage: due to instability, a large number of updrafts are generated, but due to the influence of excessive transit airflow in the rapids, the atmosphere will be more unstable, leading to a greater vicious circle.

The second stage: the velocity of vertical updraft meets the influence of the upper changing wind, forming a mesoscale cyclone in the upper troposphere.

The third stage: medium vortex, which is the embryonic form of giant vortex. Under the action of continuous thinning and strengthening, the core of tornado is formed.

The fourth stage: the rotation in the tornado core is different from that in the cyclone, and the intensity of the cyclone determines whether the tornado reaches the ground and poses a threat to human beings. When the vortex reaches the ground level, the ground air pressure drops sharply and the ground wind speed increases, forming a tornado.