1On May 4, 1993, a severe sandstorm started from the western border of Xinjiang and passed through western Gansu, north-central Ningxia and western Inner Mongolia.
This storm is like a mushroom cloud after the atomic bomb explosion, rolling violently and flying sand and stones. At that time, whether indoors or outdoors, the wind roared, as if the sky were falling and the end was coming. Unfortunately, people were unprepared for its arrival.
When the sandstorm passes, the maximum wind speed is 34m/s, the maximum wind force reaches 12, and the visibility is zero at the lowest time.
The storm killed 85 people, 3/kloc-0 people were missing and 264 people were injured. 1.2 million livestock were killed or lost, and 730,000 livestock were injured;
370,000 hectares of crops were affected; 4330 houses collapsed, causing direct economic losses of 725 million yuan.
Extended data
On May 5, 0993, Hexi Corridor 65438+ Black Storm
1993, the spring in Hexi Corridor is much warmer than before. In May, farmers here began to prepare for farming. Traditional farming methods combined with excessive warmth in spring make the land completely dry and loose.
On May 3, 4,000 kilometers away, the last strong cold air process this year was generated in Lake Karakul in Central Asia, and it quickly went south and entered the Hexi Corridor after passing through several major outlets in Xinjiang.
On May 5th, people went to work and went to school as usual and lived step by step. No one realized that disaster was approaching quietly. On this day, a rare black storm swept through parts of Xinjiang, Gansu, Ningxia and Inner Mongolia.
The sudden black wind made people feel at a loss. In this process, some people passed by death, and some people never came back. People cast a shadow on this day.
15:42, the black storm arrived in Jinchang, Gansu. The most unfortunate thing is that the storm chose a place that should not pass-340,000 tons of dusty industrial tailings were piled up and thrown into the sky in an instant, and the sand wall suddenly turned black, and the height suddenly exceeded 400 meters.
At that time, the visibility of Jinchang was zero, the instantaneous wind speed reached 32 m/s, and the wind force was eleven. The huge building disappeared, leaving only a faint flash.
"At that time, the black wind was rolling, like an approaching wall, like a mushroom-like smoke cloud 1000 meters high after the atomic bomb exploded, rolling up with dust!
Just now, it was sunny in Wan Li, and suddenly there was lightning and thunder, flying sand and stones, and the visibility dropped to zero, and it was completely dark. Long Wen Yi, the first witness of the sandstorm, recalled.
Three reporters from Jinchang TV Station in Gansu recorded the black storm entering the city.
Han Xueshan of Jinchang TV Station: "Oh, that wind, which Jinchang has seen before, is not so spectacular. It seems to be a wall, like a mushroom cloud, giving people a particularly beautiful feeling. We thought it was particularly beautiful at that time.
Suddenly, a geomantic ridge appeared, and the weather was beautiful. I was particularly surprised that this situation suddenly appeared here, but as a reporter, I am also very sensitive. The camera was nearby, so I picked it up and rushed out to shoot. "
The sky was completely dark in an instant. On the afternoon of May 5, Jinchang experienced two dark nights, totaling 3 1 minute.
Han Xueshan: "I always felt that there was something wrong with the whole earth at that time." Because you have never experienced that kind of situation, suddenly it is that kind of situation during the day, which is particularly terrible.
We feel at a loss. At first, we were curious. We took it out and filmed it. How do you feel after the experience? "
The environmental protection department estimated that 244,800 tons of dust fell in the whole area of 9,600 square kilometers in Jinchang that day.
When the black wind came, the dust concentration over Jinchang reached per cubic meter 10 16 mg, which was five times higher than the national air quality standard10/kloc-0. According to the statistics of local government departments, the sudden black storm brought direct economic losses of nearly 654.38 billion yuan to Jinchang, and farmers lost more than 60 million yuan. Fortunately, there were no casualties. ?
But not every area hit by sandstorms is so lucky. For more people, the disaster has just begun.
1At 4 o'clock in the afternoon on May 5, 993, the black wind raged in Wuwei, Gansu. At that time, it was the time when primary school students left school. 15 Seven-year-old primary and middle school students in Ba 'er Township go home happily from school. On their only way home, there is a canal. When storm warning was black, they had just reached the canal.
Bao is one of the 15 children. After school that day, she went home with friends in the class 14. Wuwei in May is the season of watering the land, and the canal water flows very fast. The water depth of 1 m 1 is a disaster for these seven-year-old children.
"After school, we started to go our separate ways. Just walked for a while, suddenly it was dark and the wind roared. The oncoming wind is full of pebbles, which hurts especially when it hits the face. Against the wind, we can't open our eyes at all, so we can only walk hand in hand.
I vaguely saw something dark ahead, thinking it was the bridge I usually crossed. Just when everyone was in high spirits and thought that we would get home soon, we all fell into the deep canal in an instant, and many friends never climbed up again. "
Bao suddenly felt that she had pulled something by the canal. She grasped it tightly and climbed onto the shore. She still doesn't know what she caught at that time. She only knew that she was lucky to climb out, while the other children continued to be washed away by the water in the dark.
Including Fang happened to pass by at that time: "At that time, I came up from below by bike, and the clouds in that place came. I can't walk because the sand and stone hit people directly. Just after I took a step to that place, the car blew down.
The car was also directly blown away and lost. I just lay on the ground and put the car there. As soon as I pressed it, I heard the sound of water, and the child came. Mom, mom, mom. "
When Fang heard the child's voice, he immediately went down to save people. She fished up eight children in the dark pool, only to find that five children had lost their breath, and one of them turned out to be her own daughter.
"Seeing my girl's favorite red sweater, my insides were torn and I was desperate, but I couldn't shed a tear. I just kept picking up the children one by one and saving them one by one. "
The disaster did not end in Wuwei. In the afternoon 17: 20, Gulang in another area was attacked in the same way. In the dark night that should have been day and night, there were 15 children with ancient waves, and the children holding hands disappeared into the rushing canal.
The "5.5 Black Storm" that ravaged the northwest originated in Yumen Town at the western end of Hexi Corridor and developed from west to east. /kloc-attacked Jinchang around 0/5: 30, 16: 40 threatened Wuwei, 17: 00 invaded Gulang, 17: 50 swept Jingtai, and 19: 20 passed the central defender.
In this black storm, the instantaneous maximum wind speed of Zhongwei is as high as 37.9 m/s (equivalent to 13 wind), which has already exceeded the wind speed of typhoon (32.7 m/s).
Everywhere I went, the black waves churned and I couldn't see my fingers. The black wind like a mushroom cloud was divided into three layers: yellow, red and black. It thundered like a bomb explosion, and suddenly the day turned into night, and the visibility dropped to zero.
At the same time, the storm is like the power of typhoon, blowing down vehicles, breaking trees, instantly erasing all tall buildings, breaking all windows in the dark, and causing mud and rain in some areas.
The Black Storm lasted until May 6th, which was the most serious sandstorm disaster in People's Republic of China (PRC) since its founding 54 years ago. In just four hours on the afternoon of May 5, a black storm in Jinchang, Wuwei and Gulangyu counties killed 85 people, injured 264 people and left 3/kloc-0 missing, affecting an area of one million square kilometers.
The whole Hexi region lost 6.5438+0.2 million livestock within 4 hours, and 370,000 hectares of cultivated land were all lost due to black wind and sand burial. The direct loss caused by this disaster is as high as 600 million.
This kind of black storm is not uncommon in the northwest inland. 1995 Black storm crossed Alashan Right Banner in Inner Mongolia, and black storm broke out in Ordos Plateau in Inner Mongolia in 200 1 year. In 2004, a black storm appeared again in Xilin Gol, Inner Mongolia.
Refer to Baidu Encyclopedia-Black Storm