Seoul Lifts Heavy Rain Alert as Strong Rain Returns Overnight

A heavy rain alert issued across Seoul was lifted as of 3 p.m. on the 9th.

The Seoul Metropolitan Government said that as of 3:30 p.m. that day, up to 75.5mm of rain had fallen in the capital due to the influence of a stationary front. While conditions have currently eased as the rain clouds moved out of Seoul, the city is maintaining its emergency response system, as strong rain of 20 to 30mm per hour is forecast to fall again between overnight and early on the 10th.

Cumulative rainfall for the day was highest in Gwanak-gu at 75.5mm, while Nowon-gu recorded 19.5mm. The maximum hourly rainfall was measured at 39mm in Gwanak-gu. Expected rainfall between the 9th and 10th is 30 to 80mm, with more than 120mm forecast in some areas.

In preparation for the heavy rain, the Seoul Metropolitan Government strengthened surveillance of vulnerable areas such as rivers and low-lying zones, and conducted inspections of storm drains and patrols of areas prone to landslides. The city inspected 25,983 storm drains, cleaned 9,833 of them, and removed covers from 2,906. Patrols were also carried out at 720 areas at risk of landslides.

Field personnel were deployed at 100 underpasses and monitoring was reinforced. A total of 3,206 workers from the Seoul Metropolitan Government and district offices were on emergency duty.

Currently, 21 rivers are under control, while there are no road closures in place. Flood advisories issued for the Mokgam Stream and Dorim Stream were lifted in the afternoon that day. Seven rainwater pumping stations are in partial operation.

A total of 14 rain-related damage reports were received and addressed, including four cases of drainage support and 10 safety measures such as fallen trees. The Seoul Metropolitan Government plans to switch to a reinforced duty system from 4 p.m. that day and continue monitoring weather conditions and river water levels.