50年一遇的冰雪灾害目前正在席卷南方10省份。连日来,通过媒体和手机短信等方式,气象部门不断发布暴雪预警信号,但这些信号的含义很多人却不甚明了。我国暴雪预警信号分为4级,分别以蓝色、黄色、橙色和红色表示。暴雪蓝色预警信号,意味着12 The snow and ice disaster once in 50 years is currently sweeping 10 provinces in the south. In the past few days, meteorological departments have continuously issued Blizzard warning signals through media and mobile phone messages, but the meaning of these signals is unclear to many people. Blizzard warning signals in China are divided into four levels, which are indicated by blue, yellow, orange, and red. Blizzard blue warning signal, which means 12