2008年年初,一场历史罕见的低温雨雪冰冻灾害袭击了我国南方部分省市.冰雪灾害远远超出我们的想象,其中,冻雨以其影响的范围之大、造成的损失之严重令人关注.人们不禁会问,同是冬季降水,为什么在南方与北方所形成的差距咋就这么大呢这就要引入雪灾期间气象预报常出现的一个气象 At the beginning of 2008, a rare historical low-temperature storm snow and ice disaster hit some provinces and cities in the south of China. The ice and snow disasters far exceeded our imagination. Among them, the extent of the impact of freezing rain and the resulting serious losses caused concern. People can’t help but ask why the difference between the South and the North in the same winter precipitation is so large that it is necessary to introduce a meteorological forecast that often occurs during snowstorms.