Heavy rain drenched the Seoul metropolitan area on July 10, with some regions recording up to 55 mm of precipitation per hour [2].
These intense bursts of rainfall pose significant risks of urban flooding and landslides across the capital region, where infrastructure can be overwhelmed by rapid water accumulation.
The Korea Meteorological Administration said that the storms were caused by a stationary front moving south, which created large-scale rain clouds [1]. This weather system triggered heavy rain warnings across the metropolitan area. In Seoul's Eunpyeong District, rainfall reached 55 mm per hour [2], while other areas in the region saw maximums of 50 mm per hour [1].
"A heavy rain warning was issued for the metropolitan area as the stationary front moved south," said reporter Ko Han-seok of YTN [1].
To prepare for the incoming weather, the agency issued heavy rain advisories for northern Gyeonggi Province, the five West Sea islands, and Ganghwa County in Incheon at 11 p.m. the previous night [1]. Officials are monitoring the movement of the rain clouds, which are traveling at a speed of 30 km per hour [5].
Forecasts indicate that northern Gyeonggi Province and northern Gangwon Province could see total rainfall exceeding 200 mm [1]. The storm's impact has been widespread, affecting Seoul's Eunpyeong District, Incheon's Bupyeong District, northern Gyeonggi, the West Sea coast, and parts of Gangwon Province [1, 2].
"In Seoul's Eunpyeong District, torrential rain of 55 mm per hour poured down," Ko said [1].
“Some regions recording up to 55 mm of precipitation per hour”
The concentration of rainfall exceeding 50 mm per hour in urban centers like Seoul suggests a high risk of flash flooding. When combined with a slow-moving weather system and high total accumulation forecasts, the potential for saturated soil in northern Gyeonggi and Gangwon increases the likelihood of landslides and infrastructure failure.
