On the 6th and 7th, strong and heavy rain is expected in most parts of the country. Despite the heavy rain, scorching heat will also occur. Currently, a heat wave warning has been issued for the southern region, while a heavy rain warning is in effect for areas including Gangwon.
The Korea Meteorological Administration noted on the 6th, "Heavy and widespread rain with strong winds, thunder, and lightning will occur in most parts of the country today and tomorrow," adding that "there will be significant differences in precipitation amounts between regions."
The expected cumulative precipitation for the 6th and 7th is ▲30-100 mm in eastern Gyeonggi, inland and mountainous areas of Gangwon ▲30-80 mm in the Chungcheong region, Jeolla region, and Gyeongsang region ▲20-60 mm in Jeju ▲10-40 mm on the eastern coast of Gangwon. On the 6th, Seoul, Incheon, western Gyeonggi, and the five islands of the Yellow Sea are expected to see 30-100 mm of rain, while Ulleungdo and Dokdo will receive 5-40 mm of rain. Northwestern and eastern Gyeonggi and the inland and mountainous regions of Gangwon could see more than 150 mm over the two days, and there may be places in the Jeolla region with more than 120 mm of rain. The Chungcheong region and South Gyeongsang Province have also been forecasted to receive more than 100 mm of rain.
As heavy rain falls in narrow areas, there will be significant variations in precipitation even within the same city, county, or district. In some areas, there could be heavy rain of around 70 mm per hour.
Currently, both heat wave and heavy rain warnings are in effect nationwide. As of 10 a.m., a heavy rain warning has been issued for Cheorwon in Gangwon, and a heavy rain advisory has been issued for ▲Dongducheon, Yeoncheon, Pocheon, Gapyeong, Yangju, Uijeongbu, and Paju in Gyeonggi ▲Hwacheon, Chuncheon, Yanggu plain, and Inje plain in Gangwon.
Additionally, heavy rain advisories are in effect for ▲Goheung, Boseong, Yeosu, and Yeongam in South Jeolla ▲Gumi, Yeongcheon, Gyeongsan, Goryeong, Seongju, Chilgok, Gimcheon, Sangju, Yecheon, Andong, Uiseong, Yeongdeok, Pohang, and Gyeongju in North Gyeongsang ▲Yangsan, Changwon, Gimhae, Miryang, Uiryeong, Haman, Changnyeong, Jinju, Sancheong, Hamyang, and Hapcheon in South Gyeongsang ▲Jeju ▲Daegu ▲central and western Busan ▲Ulsan, with heat wave warnings in effect. A heavy rain advisory has also been issued for ▲eastern Gangwon plain, Samcheok plain, excluding Taean and Seosan in South Chungcheong ▲North Chungcheong ▲Goheung, Boseong, Yeosu, and Yeongam in South Jeolla excluded ▲Jeonbuk Autonomous Province ▲Cheongdo, Mungyeong, Yeongju, Cheongsong, Yeongyang plain, Bonghwa plain, Uljin plain, and northeastern Gyeongsang.
The morning low temperature is expected to be 23-28 degrees, while the daytime high temperature is forecasted to be 28-34 degrees, similar to or slightly higher than normal. The concentration of fine dust is expected to be at a "good" level nationwide due to effective atmospheric dispersion and rainfall.
Ocean waves are expected to reach 0.5-2.5 meters in the East Sea and South Sea and 0.5-1.5 meters in the Yellow Sea. The wave height in the offshore (about 200 km from the coastline) is predicted to be 0.5-3.5 meters in the East Sea and 1.0-3.5 meters in the Yellow Sea and South Sea.
The Korea Meteorological Administration stated, "For the time being, strong swells will be introduced along the southern coast and Jeju Island, with high waves spilling over rocky shores, breakwaters, and coastal roads, so safety should be a priority."