Sudden heavy rain caused flash flooding and power outages across parts of Seoul, Incheon, and Gyeonggi Province early Saturday morning [1, 2].

The rapid rise in river and stream levels disrupted critical infrastructure and transportation, forcing drivers to navigate water-logged streets during the early hours of the day [1, 2].

In Paju-gu, Gyeonggi Province, specifically in Gyoha-dong, roads were inundated and electricity was cut as the storm intensified. Footage from a tipster reported to YTN News showed the flooding occurring around 4 a.m. [1]. Some drivers in the area were forced to reverse out of the flooded streets to avoid being trapped by the rising waters [1, 2].

The flooding extended to key transit hubs. At Incheon International Airport, the short-term parking area for Terminal 2 experienced significant water accumulation around 5:20 a.m. [1]. The sudden volume of rain overwhelmed drainage systems in the parking facility, creating hazardous conditions for travelers and staff [1, 2].

In the capital, the Ui-cheon stream in Wolgye-dong, Seoul, also overflowed. Reports and video evidence indicated that the stream levels rose rapidly, leading to flooding in the surrounding area around 7 a.m. [1].

Local authorities and emergency services responded to the various reports of inundation throughout the morning. The series of events highlights the volatility of the current weather patterns in the region — where heavy rainfall can lead to immediate urban flooding and utility failures [1, 2].

“Roads were inundated and electricity was cut as the storm intensified.”

These simultaneous flooding events across Paju, Incheon Airport, and Seoul demonstrate a systemic vulnerability to sudden, high-volume precipitation. The fact that critical infrastructure, such as an international airport's parking terminal and urban streams, failed nearly concurrently suggests that existing drainage capacities may be insufficient for the increasing frequency of extreme weather events in the region.