On Wednesday, the 16th, very strong and heavy rain is expected nationwide.
The Korea Meteorological Administration forecasted that rain would start falling in the northeastern Gyeonggi Province and the inland and mountainous regions of Gangwon from dawn, expanding to most of the country from the morning.
The forecasted precipitation in Seoul, Incheon, Gyeonggi, Daejeon, Sejong, and Chungnam is expected to be 50 to 150 mm (over 200 mm in southern Gyeonggi and the western coast of Chungnam) until the 17th.
Inland and mountainous areas of Gangwon and Chungbuk are expected to receive 50 to 100 mm (over 150 mm in the inland areas of central and southern Gangwon), Jeonbuk 30 to 100 mm (over 150 mm in northwestern Jeonbuk), Gwangju and Jeonnam 20 to 80 mm (over 100 mm in the northern coast of Jeonnam), and Busan, Ulsan, Gyeongnam, and northwestern Gyeongbuk 30 to 80 mm, with Daegu, Gyeongbuk, Ulleungdo, and Dokdo expected to receive 10 to 60 mm.
In the metropolitan area and the Chungcheong region, very heavy rain of up to 50 mm per hour is expected from the afternoon, so caution is advised. Strong rain in a short period may cause rivers to swell suddenly. The Korea Meteorological Administration advised against approaching rivers and to refrain from camping. It also warned of potential flooding in low-lying areas, soil erosion, landslides, and rockfalls.
The morning low temperatures are forecasted to be between 19 and 24 degrees, while the daytime high temperatures are expected to be between 26 and 31 degrees.
The concentration of fine dust is expected to be at a "good" level across all regions due to smooth atmospheric diffusion and rainfall.
Sea waves in the East Sea and West Sea are expected to be between 0.5 and 2.5 meters, and in the South Sea between 0.5 and 1.5 meters. The wave heights in the distant waters (approximately 200 km offshore) are forecasted to be 1.0 to 3.5 meters in the East Sea, 0.5 to 3.5 meters in the West Sea, and 0.5 to 2.0 meters in the South Sea.