South Korea braces for heavy rain, up to 150mm forecast for Wednesday and Thursday

South Korea is bracing for a significant rainfall event, with most of the country expecting rain until Tuesday morning. This initial phase will be followed by scattered showers across the nation in the afternoon, caused by atmospheric instability.

The forecast indicates a substantial downpour from Wednesday to Thursday, with up to 150 mm of rain expected nationwide. The Korea Meteorological Administration has warned of potential heavy rainfall, particularly in the Seoul metropolitan area, Incheon, and Gyeonggi province, where accumulations could reach 60 mm, with some northern inland areas and the western coastal islands potentially seeing over 80 mm.

Inland areas of Gangwon province are also predicted to receive between 20-60 mm, with northern inland regions possibly exceeding 80 mm. The eastern coast of Gangwon province is expected to see lighter rainfall, between 5-40 mm. Other regions, including Daejeon, Sejong, South Chungcheong, North Chungcheong, North Jeolla, and parts of Gwangju and South Jeolla, will also experience varying amounts of rain, generally between 5-60 mm. Inland areas of Gyeongnam, Daegu, and North Gyeongbuk could receive up to 40 mm.

Earlier on Tuesday morning, some parts of the Seoul metropolitan area and South Chungcheong experienced intense rain, with hourly rates of 20-30 mm. Similar heavy showers are anticipated in the inland and mountainous regions of Gangwon province until the morning. The combination of the lingering monsoon rain and subsequent showers is expected to bring considerable precipitation to the country.