South Korea experienced three days of heavy rainfall starting on July 17, 2024, prompting the issuance of emergency rain alert messages [1].
The intensity of the storms created immediate risks of flooding and infrastructure damage across the peninsula. This weather pattern disrupted several regions during a period that included Constitution Day [1].
Meteorologists said the severe weather was due to an activated stationary front combined with successive low-pressure systems [1]. Strong nighttime winds further contributed to the crisis by supplying additional moisture to the region [1].
Rainfall totals varied by location but remained critical. In Yeongju, Gyeongbuk, cumulative rainfall exceeded 200 mm [1]. Similar totals approaching 200 mm were recorded in Dongducheon, Yeoncheon, and Akeong-myeon in Paju [1].
Some areas experienced extreme hourly rates of precipitation. In Jisan-dong, Suseong-gu, Daegu, rainfall reached 89 mm per hour [1]. Parts of Seoul, specifically Gangseo-gu and Jongno-gu, recorded hourly rates exceeding 50 mm [1].
The government utilized emergency alert systems to warn citizens as the stationary front moved across the country [1]. These alerts were designed to mitigate casualties and property loss during the peak of the hourly rainfall spikes [1].
“Cumulative rainfall in Yeongju exceeded 200 mm.”
The combination of a stationary front and high-moisture nighttime winds creates a volatile environment where precipitation is concentrated in short, intense bursts. When hourly rates approach 90 mm, urban drainage systems often reach capacity, increasing the risk of flash floods in densely populated areas like Seoul and Daegu.
