Starting from the afternoon of the 3rd, heavy rain poured mainly in Jeollanam-do, prompting President Lee Jae-myung to demand active responses from related ministries.
On that afternoon, President Lee posted on Facebook, urging that "related ministries and local governments should engage in proactive measures to minimize damage under the principle of 'take action first, report later.'" He also stated, "I am also ensuring that the system is in place for a video conference with the National Crisis Management Center in the event of an emergency, and I am keeping an eye on the heavy rain situation."
President Lee is currently staying in Geoje, Gyeongnam for summer vacation. He added, "I urge the public to frequently check the weather forecasts and actively cooperate with government guidance."
The Korea Meteorological Administration forecasted that from that night until the morning of the 5th, 100 to 200 mm (up to 250 mm or more) of rain would fall in Gwangju and Jeollanam-do, excluding the southern coast. An automatic weather observation system (AWS) installed at Muan International Airport in Muan County, Jeollanam-do, recorded 142.1 mm of rain from 7:10 p.m. for one hour.