中央气象台8月3日发布预报，未来三天内多地将经历显著天气变化。[1]重庆、贵州、陕西、广东、云南和四川等地部分地区将出现强降雨，其中重庆中部等地局地特大暴雨降水量达250～300毫米。[1]同时，东北、华北及内蒙古等地将面临强对流天气，黑龙江西南部、河北中北部等地的部分地区将出现10级以上雷暴大风。[1]
中央气象台于8月3日06时继续发布暴雨橙色预警和强对流天气蓝色预警。[1]气象部门提醒相关地区需加强防范山洪、地质灾害、中小河流洪水和城市暴雨积涝等次生灾害。[1]此次强降水和强对流天气的预报时间为8月3日08时至6日08时。[1]
The Central Meteorological Administration issued warnings on August 3 for widespread precipitation and atmospheric disturbances affecting multiple regions over the coming three days [1]. Heavy to torrential rainfall is forecast across Chongqing, Guizhou, Shaanxi, Guangdong, Yunnan, and Sichuan, with certain areas in central Chongqing expected to experience extraordinarily heavy precipitation of 250–300 millimeters [1]. The agency released an orange-level rainstorm warning and blue-level severe convection alert at 06:00 on August 3, with forecasts extending from 08:00 on August 3 through 08:00 on August 6 [1].
Northeastern and North China regions face additional threats from severe convective weather during this period [1]. Southwestern Heilongjiang, central to northern Hebei, and other localities are anticipated to experience thunderstorm winds exceeding force 10 [1]. Authorities have advised heightened vigilance against flash floods, geological disasters, flooding in small to medium rivers, and urban waterlogging [1].