Zhihu Hot List
Latest recorded position: #15 on Aug 12, 2026, 8:42 AM CST.
There are not enough retained observations to calculate a rank change.
What caused the sudden torrential rain in Shanghai to flood many urban roads, leaving the water unable to drain?
上海突如其来的大暴雨，市区很多路段全面积水，无法排出的原因是什么？
ThreadEast first recorded "What caused the sudden torrential rain in Shanghai to flood many urban roads, leaving the water unable to drain?" on Aug 11, 2026, 8:54 PM CST. It has been observed on Zhihu Hot List, with 11 hours between the first and latest recorded appearances.
What the trend data tells us
The English title describes the topic of the source listing. Its appearance in a ranking measures attention within that platform; the ranking alone does not explain the cause of a spike or verify the underlying claim.
This stable URL remains available after a topic leaves a live ranking. Observation span is elapsed time between sightings, not continuous time on a chart. Platforms use different ranking and heat systems; their metrics are not added together.
Original evidence
Source listings
#15Source metric: 119 万热度
Original source