The Korea meteorological Administration announced that as of 7:30 a.m. on the 1st, heavy rain warnings have been issued for all areas of Seoul.
Heavy rain warnings are issued when the expected rainfall is over 60 mm in 3 hours or more than 110 mm in 12 hours. It is difficult to completely block the rain with an umbrella, and caution is needed as streams and river waters may rise.
As heavy rain warnings have been issued for all areas of Seoul, access to 29 rivers in the city, including Cheonggyecheon and Anyangcheon, has been restricted. The Seoul city government issued a 'caution' level 1 alert related to the rainfall at 4:10 a.m. that day and entered emergency work. A total of 3,465 personnel, including 355 city officials and 3,110 from 25 autonomous districts, are on duty in preparation for the heavy rain.
Heavy rain warnings have also been issued for Gwangmyeong, Gwacheon, Ansan, Siheung, Bucheon, Gimpo, Yeoncheon, Goyang, Yangju, Uijeongbu, Paju, Seongnam, Anyang, Guri, Namyangju, Gunpo, Uiwang, Hanam, Hwaseong, and mountainous areas of Jeju Island.
According to the Korea meteorological Administration, rain is expected in most parts of the country that day. From that day until the 2nd, the expected rainfall is ▲Seoul metropolitan area 30-80 mm (more than 100 mm in some places) ▲Gangwon 30-80 mm (more than 100 mm in northern inland Gangwon) ▲Chungcheong area 20-60 mm (more than 80 mm in some areas of northern Chungnam coastal) ▲Gwangju Metropolitan City and Jeonnam 30-80 mm ▲Jeonbuk 10-60 mm ▲Busan, Ulsan, and Gyeongnam 30-80 mm ▲Daegu, Gyeongbuk, Ulleungdo, and Dokdo 5-60 mm ▲Jeju 10-60 mm (more than 80 mm in some areas like mountains).
However, only less than 5 mm of rain is forecasted over two days for the eastern coast of Gangwon, which is experiencing drought conditions.