Central South Korea experienced its strongest rainfall of the year overnight, prompting the first emergency flood alert in Seoul [1].
The intensity of the storm has put urban infrastructure in the capital and rural areas in the provinces under significant stress. With more concentrated rain forecast for tonight, authorities are warning residents of continued risk across the region [1].
Rainfall peaked between 4:00 and 5:00 local time [1]. In Gyeonggi Province, Eokseong-myeon in Paju recorded 197.5 mm of rain [1]. Seoul's Gangseo-gu recorded 185.5 mm [1], while Cheorwon-gun in Gangwon Province saw 171.1 mm [1].
Local authorities in Seoul issued an emergency disaster text message after rainfall in the Gangseo and Eunpyeong districts exceeded 50 mm per hour [1]. Other areas saw even more intense bursts; Seodaemun-gu in Seoul recorded 65 mm in a single hour [1].
Outside the capital, the rain was equally severe. In Gyeongbuk, Gimcheon recorded 72 mm of rain in one hour, and Gumi recorded 65.2 mm in one hour [1].
"Overnight, the strongest rain of the year poured down on central regions, including Seoul and Gangwon," a YTN anchor said [1].
Reporter Jang Ah-young said that the emergency alerts in Seoul were triggered specifically by the rapid accumulation of more than 50 mm of rain per hour in the Gangseo and Eunpyeong districts [1].
Meteorological forecasts indicate the weather system remains active. A YTN anchor said that concentrated heavy rain is expected again tonight, primarily centering on the Chungcheong and Gangwon regions [1].
“Central South Korea experienced its strongest rainfall of the year overnight.”
The occurrence of the year's strongest rainfall in July suggests a volatile monsoon season. The triggering of Seoul's first emergency flood alert indicates that the volume of water exceeded the city's immediate drainage capacity, highlighting the ongoing vulnerability of urban centers to extreme weather events despite existing flood mitigation efforts.
