当前，北京已进入“七下八上”主汛期","attr":"{"be-class":"center"}"},
极有可能出现短时强降雨","attr":"{"be-class":"center"}"},
如何读懂关于强降雨的预警信号？","attr":"{"be-class":"center"}"},
雨天出行，应该注意什么？","attr":"{"be-class":"center"}"},
这些知识要掌握↓↓↓","attr":"{"be-class":"center"}"},
1、什么样的雨才算暴雨？","attr":"{"be-class":"center"}"},
气象学上，以雨量为判断标准","attr":"{"be-class":"center"}"},
当某一地区的累积降雨量","attr":"{"be-class":"center"}"},
满足1小时16毫米以上","attr":"{"be-class":"center"}"},
或12小时30毫米以上","attr":"{"be-class":"center"}"},
或24小时50毫米以上时","attr":"{"be-class":"center"}"},
才能称之为暴雨","attr":"{"be-class":"center"}"},
达到上述标准","attr":"{"be-class":"center"}"},
按照雨量大小","attr":"{"be-class":"center"}"},
又可进一步分为","attr":"{"be-class":"center"}"},
暴雨、大暴雨、特大暴雨","attr":"{"be-class":"center"}"},
三个等级","attr":"{"be-class":"center"}"},
2、暴雨预警信号","attr":"{"be-class":"center"}"},
如果在非常短的时间内","attr":"{"be-class":"center"}"},
累积降雨量就已经达到上述水平","attr":"{"be-class":"center"}"},
气象部门就会根据达标的","attr":"{"be-class":"center"}"},
时间长短及雨量大小","attr":"{"be-class":"center"}"},
从低到高，相应地发布","attr":"{"be-class":"center"}"},
蓝色、黄色、橙色、红色","attr":"{"be-class":"center"}"},
四级暴雨预警信号","attr":"{"be-class":"center"}"},
①暴雨蓝色预警","attr":"{"be-class":"center"}"},
当某一地区的累积降雨量","attr":"{"be-class":"center"}"},
在12个小时内将达50毫米","attr":"{"be-class":"center"}"},
或当前已经达到50毫米以上","attr":"{"be-class":"center"}"},
可能或已经造成影响","attr":"{"be-class":"center"}"},
且降雨可能持续时","attr":"{"be-class":"center"}"},
就会发布暴雨蓝色预警信号","attr":"{"be-class":"center"}"},
50毫米约为一般成年人","attr":"{"be-class":"center"}"},
食指到无名指3个手指的宽度","attr":"{"be-class":"center"}"},
这时，降雨可能会导致路面积水","attr":"{"be-class":"center"}"},
最好待在屋里，远离窗户","attr":"{"be-class":"center"}"},
远离河流湖泊、稻田","attr":"{"be-class":"center"}"},
以及空旷地区","attr":"{"be-class":"center"}"},
远离广告牌及简易建筑物","attr":"{"be-class":"center"}"},
不拿着金属物品","attr":"{"be-class":"center"}"},
以及接打手机 以防雷击","attr":"{"be-class":"center"}"},
②暴雨黄色预警","attr":"{"be-class":"center"}"},
当某一地区的累积降雨量","attr":"{"be-class":"center"}"},
在6个小时内将达50毫米","attr":"{"be-class":"center"}"},
或已经达到50毫米以上","attr":"{"be-class":"center"}"},
会造成一些不良影响","attr":"{"be-class":"center"}"},
或者会出现一些问题","attr":"{"be-class":"center"}"},
降雨持续时间长","attr":"{"be-class":"center"}"},
就会发布暴雨黄色预警信号","attr":"{"be-class":"center"}"},
