Heavy rain caused severe flooding in Geoje and Tongyeong, South Gyeongsang Province, submerging homes and roads on Monday [1].
The intensity of the storm caused rapid runoff that overwhelmed local infrastructure, leaving residents trapped and causing structural damage to residential buildings.
Rainfall intensity reached levels greater than 100 mm per hour [1]. This volume of water led to river overflows and the submerging of roads across the region [1]. In Geoje, reports from around 06:00 KST on Monday showed the scale of the impact [1].
Emergency footage captured a car trapped in floodwaters on a submerged road. In the Ilun-myeon area of Geoje, the force of the water and debris caused a tree trunk to be pushed through the first-floor wall of a house [1].
"Heavy rain of more than 100 mm per hour poured over the Geoje and Tongyeong areas of South Gyeongsang Province, causing flooding in various places," said a YTN anchor [1].
The rapid rise of water levels created dangerous conditions for commuters and homeowners. A YTN reporter said that water filled the rivers as if they were about to overflow, with torrents flowing with a terrifying momentum [1].
Local residents in Gohyeon-dong and Ilun-myeon faced the brunt of the runoff. The combination of steep terrain and extreme precipitation caused the water to move quickly from highlands into residential zones, trapping vehicles, and damaging property [1].
“Rainfall intensity reached levels greater than 100 mm per hour.”
The occurrence of hourly rainfall exceeding 100 mm indicates an extreme weather event that surpasses the drainage capacity of most urban infrastructure. Such concentrated bursts of precipitation often lead to flash flooding, where the speed of the runoff increases the risk of structural failure and vehicle entrapment, highlighting the vulnerability of coastal provinces to sudden climatic shifts.
