What are the dangers of a snowstorm? What are the extremely cold snow disasters in frozen Tongliao?
Hazards of Blizzard Blizzard, also known as "blizzard", is a natural weather phenomenon. In the snowstorm weather, due to the increase of non-evaporation heat dissipation, the body temperature of livestock will gradually decrease after maintaining the heat regulation balance for a period of time. In the snowstorm, a lot of snow was carried away by strong winds, so it was impossible to judge whether there was snowfall at that time. The horizontal visibility is less than 1km. In this environment, people will lose their sense of direction, and it is very easy to get lost and freeze to death in the wild. According to the determination, in the low temperature and windy environment, the temperature of sheep will drop to about 28℃ in spring, which will lead to death. The forage grass is yellow, and the quantity is small, the quality is low, the livestock is weak and fat, and the cold resistance is reduced. When a snowstorm strikes, the herd is terrified, often running with the wind because they can't tell the direction and can't catch up with the circle. They often fall into blisters in the lake or fall off cliffs and die. Pregnant female animals run in adversity, which easily leads to mechanical abortion; Some young animals even indulge in polluted snow or frozen grassland, which leads to the outbreak of malignant infectious diseases and the death rate of young animals rises sharply. Blizzard is one of the disastrous weather in animal husbandry production.
The extremely cold snowstorm froze Tongliao. Since June 5th, 2008+065438+1October 5th, Tongliao City has suffered a severe snowstorm. Among them, on the 7 th and 8 th, there was a big blizzard for two consecutive days. The heavy snowfall lasted about 46 hours, and the maximum snow depth was 68 cm in Hure Banner, breaking the record of 195 1 year. June165438+1October 10 Tongliao local weather turned fine, from heavy snow to sleet. In the past five days, the life rhythm of Tongliao residents has been completely disrupted, and thousands of other residents have been affected. Many color steel sheds and grape sheds in the village collapsed, houses were buried by heavy snow, and residents were trapped. 165438+1Since October 5, Tongliao City, Inner Mongolia has been hit by a strong snowstorm. The reporter learned from Tongliao Meteorological Bureau that from 20: 00 on October 5th to 65: 438+0 14 on October 9th, the accumulated snowfall in central and southern Tongliao was more than 30 mm, including Kezuozhong Banner, Horqin District, Hure Banner, Kezuozhong Banner, Kezuohou Banner, Kailu County and Naiman County. The maximum snow depth in Hure Banner is 68 cm. Affected by snowfall, temporary traffic control has been implemented at the entrances of all toll stations on expressways such as G45, G25 1 1 and G25 in Tongliao City, and all vehicles are prohibited from entering. 165438+17 October, tongliao airport issued a notice of temporary closure. In order to resume flights as soon as possible, tongliao airport organized several rounds of large-scale snow clearing from the evening of165438+1October 6 to clean runways, taxiways and aprons. 165438+1On October 9th, Tongliao detachment of Inner Mongolia Armed Police Corps rushed to tongliao airport to seize the port passage. Due to the nest wind, the snow depth between the covered bridges is as high as 1.3 meters. The officers and men cleared the snow bit by bit with shovels and pickaxes.
How did the snowstorm form? Blizzard refers to the weather phenomenon that a large amount of snow is not falling, but blown away by strong winds, and it is impossible to determine whether there is snowfall at that time, and the horizontal visibility is less than 1km. Blizzard is a natural meteorological disaster, which is the general name of heavy precipitation weather below -5℃, accompanied by strong cold air flow. The formation of a snowstorm is similar to a storm. Usually, in winter, when the temperature in the cloud is low, the water droplets in the cloud will freeze. When these frozen water droplets hit other water droplets, these water droplets become snow. When they turn into snow, they will continue to collide with other small water droplets or snow. When the snow becomes too heavy, it will fall. Although most of the snow is harmless, once the wind speed reaches 56 km /h, the temperature will drop below -5℃. If there is a lot of snow at this time, a snowstorm will form.
What should we prepare for the snowstorm? 1. Everyone should try to stay indoors and not go out. 2. If you are outdoors, stay away from billboards, temporary structures and old trees to avoid injury. When passing under a bridge, eaves, etc. , pay attention to observe or bypass, so as not to hurt people because the ice melts and falls off. 3. Non-motor vehicles should deflate the tires a little to increase the friction between the tires and the road. 4, obey the traffic police command, obey the traffic arrangements. 5. Pay attention to weather forecast and traffic information to avoid delays in travel due to the suspension or closure of airports, highways and ferry terminals. 6. When driving, drive slowly and keep a distance from the car in front. The vehicle should slow down in advance before turning to avoid sudden braking. If possible, install snow chains and wear colored glasses. 7. After the traffic accident, clear signs should be set at the rear of the scene to prevent serial crashes. 8. In case of power failure, report it to the electric power department quickly so as to deal with it quickly.