Starting from the evening of the 16th, rain of up to 80mm per hour may fall in Southern Gyeonggi and Chungcheongnam-do.
According to the Korea Meteorological Administration, Southern Gyeonggi is forecasted to receive rain of 50 to 80mm per hour until the night of the 17th, while Chungcheongnam-do is expected to experience the same from the night of the 16th until dawn on the 17th. If the hourly rainfall exceeds 50mm, emergency disaster messages for heavy rain may be sent.
In addition to Southern Gyeonggi, heavy rain of 30 to 50mm per hour is also expected in the metropolitan area and Chungcheongbuk-do.
Additionally, regions such as the southern and central inland of Gangwon-do, Jeollabuk-do, Jeollanam-do, and Gyeongsangnam-do are forecasted to receive up to 50mm of rain per hour.
As such, a large amount of rain across the country is anticipated, which is expected to lead to a high total rainfall.
When adding the total amount of rain expected until the 17th, Southern Gyeonggi and Chungcheong may receive rain exceeding 200mm. Furthermore, the metropolitan area and Chungcheong are expected to have 50 to 150mm, while the inland of Gangwon-do, southern Chungcheongbuk-do, and Jeollabuk-do may see rainfall of over 100mm.
Rain that has been concentrated in the central region is expected to shift to the southern regions on the 18th. On the 18th, Busan, Ulsan, and Gyeongsangnam-do are expected to receive up to 150mm of rain, while the Jeolla region may see up to 100mm.