The Korea Meteorological Administration has issued a heavy-rain warning for Seoul and central regions as extreme precipitation threatens the area [1].

This weather event poses a significant risk to public safety, as the projected volume of water could trigger sudden urban flooding and landslides in densely populated metropolitan zones [1, 2].

Forecasters expect extreme rainfall of up to 80mm per hour [1]. Total rainfall could reach 300mm by tomorrow [1]. The warning covers Seoul and the surrounding metropolitan area, as well as central provinces including Gyeonggi, Chungcheong, North Gyeongsang, and north-western Gangwon [1, 2].

Strong rain-cloud bands are currently persisting over Chungcheong and North Gyeongsang [1, 2]. These bands are moving into the capital region, creating the conditions necessary for extreme precipitation [1, 2].

Reports indicate that some areas are already experiencing significant rainfall. In Seongnam, Jeungpyeong, and Uiseong, rainfall has been measured between 10 and 30mm per hour [1].

"A heavy-rain warning has been issued for Seoul, and extreme heavy rain reaching 80mm per hour is expectedを中心に in the central region until this morning," a YTN anchor said [1].

Reporter Kim Min-kyung said that strong rain-cloud bands, appearing as red and purple on radar, are flowing into the metropolitan area [1]. She said that strong rain is already falling in several cities, including Seongnam and Uiseong [1].

“Extreme rainfall of up to 80mm per hour is expected.”

The concentration of high-intensity rainfall within a short window often overwhelms urban drainage systems in Seoul, which can lead to rapid street flooding and transit disruptions. When combined with the saturated soil in the central provinces, these 'extreme' precipitation levels significantly increase the probability of slope failures and landslides in mountainous or underdeveloped areas.