Shanghai Central Meteorological Observatory issues a blue warning signal for heavy rain.

Shanghai Central Meteorological Observatory issued a blue rainstorm warning signal at 04:20 on July 11, 2025: It is expected that in the next 12 hours, the cumulative rainfall in most parts of the city will exceed 50 millimeters in 6 hours. Please pay attention to prevent urban waterlogging caused by heavy rainfall, and do a good job in drainage and flood protection in low-lying and flood-prone areas.