At 21:25 on July 31, 2025, the Jinshan District Meteorological Observatory issued a yellow warning for lightning [Level III/Severe]: It is expected that most streets and towns in this area will experience lightning activity within 6 hours, which may cause lightning disasters and accidents. Please pay attention to prevention.
金山区气象台2025年07月31日21时25分发布雷电黄色预警[Ⅲ级/较重]：预计6小时内本区大部分街镇将发生雷电活动，可能会造成雷电灾害事故，请注意防范。
At 17:39 on July 31, 2025, the Shanghai center Meteorological Observatory issued a yellow rainstorm warning [Level III/heavy]: It is expected that in the next six hours, the central city, Baoshan and Jiading will have a short-term heavy rainfall of more than 50 mm an hour, and the blue rainstorm warning signal will be updated to the yellow rainstorm warning signal. Please strengthen the prevention of urban waterlogging caused by heavy rainfall, and do a good job in drainage and waterlogging prevention in low-lying and vulnerable areas.
上海中心气象台2025年07月31日17时39分发布暴雨黄色预警[Ⅲ级/较重]：预计未来6小时内，中心城区、宝山、嘉定将出现一小时雨量50毫米以上的短时强降水天气，暴雨蓝色预警信号更新为暴雨黄色预警信号，请加强防范强降雨可能引发的城市积涝，并做好低洼、易受淹地区排水防涝工作。
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