Written materials of handwritten reports on meteorological disasters

Blizzard is the general name of heavy precipitation weather below -5℃, accompanied by strong cold air flow. The formation of a snowstorm is similar to that of a storm. In winter, when the temperature in the cloud becomes very 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. Most snow is harmless, but when the wind speed reaches 56 kilometers per hour, the temperature drops below -5℃ and there is a lot of snow, a snowstorm is formed.

Sandstorm is the general name of sandstorm and sandstorm, and it is a sign of desertification. It refers to a disastrous weather phenomenon that strong winds roll up a lot of dust on the ground, making the horizontal visibility less than 1 km. It has the characteristics of suddenness and short duration, low probability and great harm. [1] Among them, sandstorm refers to a sand-laden storm formed by strong wind blowing a large amount of sand near the stratum; Sandstorm is a storm formed by strong winds, which brings a lot of dust and other particles into the sky.

Meteorological disaster refers to the direct or indirect damage caused by the atmosphere to human life and property, national economic construction and national defense construction. Natural disasters will cause losses of millions to tens of billions of yuan, and also cause countless casualties in disaster areas.

Meteorological disaster is one of natural disasters. It mainly includes tropical storms in Asia, typhoons in coastal cities of China, drought, high temperature, mountain torrents, thunderstorms and sandstorms in northern China. Hurricanes, tornadoes, hail and heavy rain (snow) are common in North America. China is one of the few countries with frequent natural disasters in the world. There are many kinds of disasters and the losses are very serious.