How big is the snowstorm

Blizzard refers to the snowfall process of a natural weather phenomenon, which brings extreme invariance to people's life and travel; Blizzard warning signals are divided into blue, yellow, orange and red. Meteorology has strict regulations on snowfall, which is completely different from the standard of rainfall. The amount of snow is measured according to the snow collected by meteorological observers in a certain standard container, and there are strict regulations on the amount of snow in meteorology.

Like rainfall, it refers to the amount of snowfall in a certain period of time. There are different standards for 24 hours and 12 hours. In weather forecast, it is usually to forecast the weather during the day or at night, which mainly refers to the snowfall within 24 hours. Blizzard refers to the daily snowfall (melting into water) ≥ 10/0mm.

Law and characteristics

The appearance of blizzard is often accompanied by strong winds, cooling and other weather, which has an impact on winter traffic and agricultural production. Blizzard is mainly distributed in Northeast China, western Daxinganling Mountains in Inner Mongolia, northern Yinshan Mountain, Qilian Mountain, some mountainous areas in Xinjiang, northern Tibet Plateau to Qingnan Plateau, southern Sichuan Plateau and other places. Blizzard usually occurs from June 10 to April of the following year. The so-called "sitting in winter snow" formed in late autumn and early winter is generally harmful.

The location and frequency of snowstorms are closely related to the distribution of precipitation. In Inner Mongolia, snowstorms mainly occur in Bameng, Wumeng, Ximeng, Zhao Meng and northern Zhemeng in central Inner Mongolia, with the frequency exceeding 30%, and the snowstorms in Yinshan area are the heaviest and most frequent. Due to the unusually dry winter in the west, there are almost no snowstorms.